#include <CompressibleFlowSystem.h>

Inheritance diagram for Nektar::CompressibleFlowSystem:

Public Member Functions
NekDouble	GetStabilityLimit (int n)
	Function to calculate the stability limit for DG/CG.

Array< OneD, NekDouble >	GetStabilityLimitVector (const Array< OneD, int > &ExpOrder)
	Function to calculate the stability limit for DG/CG (a vector of them).

Public Member Functions inherited from Nektar::SolverUtils::AdvectionSystem
SOLVER_UTILS_EXPORT	AdvectionSystem (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)

SOLVER_UTILS_EXPORT	~AdvectionSystem () override=default

SOLVER_UTILS_EXPORT AdvectionSharedPtr	GetAdvObject ()
	Returns the advection object held by this instance.

SOLVER_UTILS_EXPORT Array< OneD, NekDouble >	GetElmtCFLVals (const bool FlagAcousticCFL=true)

SOLVER_UTILS_EXPORT NekDouble	GetCFLEstimate (int &elmtid)

Public Member Functions inherited from Nektar::SolverUtils::UnsteadySystem
SOLVER_UTILS_EXPORT	~UnsteadySystem () override=default
	Destructor.

SOLVER_UTILS_EXPORT NekDouble	GetTimeStep (const Array< OneD, const Array< OneD, NekDouble > > &inarray)
	Calculate the larger time-step mantaining the problem stable.

SOLVER_UTILS_EXPORT NekDouble	GetTimeStep ()

SOLVER_UTILS_EXPORT void	SetTimeStep (const NekDouble timestep)

SOLVER_UTILS_EXPORT void	SteadyStateResidual (int step, Array< OneD, NekDouble > &L2)

SOLVER_UTILS_EXPORT LibUtilities::TimeIntegrationSchemeSharedPtr &	GetTimeIntegrationScheme ()
	Returns the time integration scheme.

SOLVER_UTILS_EXPORT LibUtilities::TimeIntegrationSchemeOperators &	GetTimeIntegrationSchemeOperators ()
	Returns the time integration scheme operators.

Public Member Functions inherited from Nektar::SolverUtils::EquationSystem
virtual SOLVER_UTILS_EXPORT	~EquationSystem ()
	Destructor.

SOLVER_UTILS_EXPORT void	InitObject (bool DeclareField=true)
	Initialises the members of this object.

SOLVER_UTILS_EXPORT void	DoInitialise (bool dumpInitialConditions=true)
	Perform any initialisation necessary before solving the problem.

SOLVER_UTILS_EXPORT void	DoSolve ()
	Solve the problem.

SOLVER_UTILS_EXPORT void	TransCoeffToPhys ()
	Transform from coefficient to physical space.

SOLVER_UTILS_EXPORT void	TransPhysToCoeff ()
	Transform from physical to coefficient space.

SOLVER_UTILS_EXPORT void	Output ()
	Perform output operations after solve.

SOLVER_UTILS_EXPORT std::string	GetSessionName ()
	Get Session name.

template<class T >
std::shared_ptr< T >	as ()

SOLVER_UTILS_EXPORT void	ResetSessionName (std::string newname)
	Reset Session name.

SOLVER_UTILS_EXPORT LibUtilities::SessionReaderSharedPtr	GetSession ()
	Get Session name.

SOLVER_UTILS_EXPORT MultiRegions::ExpListSharedPtr	GetPressure ()
	Get pressure field if available.

SOLVER_UTILS_EXPORT void	ExtraFldOutput (std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)

SOLVER_UTILS_EXPORT void	PrintSummary (std::ostream &out)
	Print a summary of parameters and solver characteristics.

SOLVER_UTILS_EXPORT void	SetLambda (NekDouble lambda)
	Set parameter m_lambda.

SOLVER_UTILS_EXPORT SessionFunctionSharedPtr	GetFunction (std::string name, const MultiRegions::ExpListSharedPtr &field=MultiRegions::NullExpListSharedPtr, bool cache=false)
	Get a SessionFunction by name.

SOLVER_UTILS_EXPORT void	SetInitialConditions (NekDouble initialtime=0.0, bool dumpInitialConditions=true, const int domain=0)
	Initialise the data in the dependent fields.

SOLVER_UTILS_EXPORT void	EvaluateExactSolution (int field, Array< OneD, NekDouble > &outfield, const NekDouble time)
	Evaluates an exact solution.

SOLVER_UTILS_EXPORT NekDouble	L2Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln, bool Normalised=false)
	Compute the L2 error between fields and a given exact solution.

SOLVER_UTILS_EXPORT NekDouble	L2Error (unsigned int field, bool Normalised=false)
	Compute the L2 error of the fields.

SOLVER_UTILS_EXPORT NekDouble	LinfError (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray)
	Linf error computation.

SOLVER_UTILS_EXPORT NekDouble	H1Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln, bool Normalised=false)
	Compute the H1 error between fields and a given exact solution.

SOLVER_UTILS_EXPORT Array< OneD, NekDouble >	ErrorExtraPoints (unsigned int field)
	Compute error (L2 and L_inf) over an larger set of quadrature points return [L2 Linf].

SOLVER_UTILS_EXPORT void	Checkpoint_Output (const int n)
	Write checkpoint file of m_fields.

SOLVER_UTILS_EXPORT void	Checkpoint_Output (const int n, MultiRegions::ExpListSharedPtr &field, std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
	Write checkpoint file of custom data fields.

SOLVER_UTILS_EXPORT void	Checkpoint_BaseFlow (const int n)
	Write base flow file of m_fields.

SOLVER_UTILS_EXPORT void	WriteFld (const std::string &outname)
	Write field data to the given filename.

SOLVER_UTILS_EXPORT void	WriteFld (const std::string &outname, MultiRegions::ExpListSharedPtr &field, std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
	Write input fields to the given filename.

SOLVER_UTILS_EXPORT void	ImportFld (const std::string &infile, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields)
	Input field data from the given file.

SOLVER_UTILS_EXPORT void	ImportFldToMultiDomains (const std::string &infile, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const int ndomains)
	Input field data from the given file to multiple domains.

SOLVER_UTILS_EXPORT void	ImportFld (const std::string &infile, std::vector< std::string > &fieldStr, Array< OneD, Array< OneD, NekDouble > > &coeffs)
	Output a field. Input field data into array from the given file.

SOLVER_UTILS_EXPORT void	ImportFld (const std::string &infile, MultiRegions::ExpListSharedPtr &pField, std::string &pFieldName)
	Output a field. Input field data into ExpList from the given file.

SOLVER_UTILS_EXPORT void	SessionSummary (SummaryList &vSummary)
	Write out a session summary.

SOLVER_UTILS_EXPORT Array< OneD, MultiRegions::ExpListSharedPtr > &	UpdateFields ()

SOLVER_UTILS_EXPORT LibUtilities::FieldMetaDataMap &	UpdateFieldMetaDataMap ()
	Get hold of FieldInfoMap so it can be updated.

SOLVER_UTILS_EXPORT NekDouble	GetTime ()
	Return final time.

SOLVER_UTILS_EXPORT int	GetNcoeffs ()

SOLVER_UTILS_EXPORT int	GetNcoeffs (const int eid)

SOLVER_UTILS_EXPORT int	GetNumExpModes ()

SOLVER_UTILS_EXPORT const Array< OneD, int >	GetNumExpModesPerExp ()

SOLVER_UTILS_EXPORT int	GetNvariables ()

SOLVER_UTILS_EXPORT const std::string	GetVariable (unsigned int i)

SOLVER_UTILS_EXPORT int	GetTraceTotPoints ()

SOLVER_UTILS_EXPORT int	GetTraceNpoints ()

SOLVER_UTILS_EXPORT int	GetExpSize ()

SOLVER_UTILS_EXPORT int	GetPhys_Offset (int n)

SOLVER_UTILS_EXPORT int	GetCoeff_Offset (int n)

SOLVER_UTILS_EXPORT int	GetTotPoints ()

SOLVER_UTILS_EXPORT int	GetTotPoints (int n)

SOLVER_UTILS_EXPORT int	GetNpoints ()

SOLVER_UTILS_EXPORT int	GetSteps ()

SOLVER_UTILS_EXPORT void	SetSteps (const int steps)

SOLVER_UTILS_EXPORT NekDouble	GetTimeStep ()

SOLVER_UTILS_EXPORT void	CopyFromPhysField (const int i, Array< OneD, NekDouble > &output)

SOLVER_UTILS_EXPORT void	CopyToPhysField (const int i, const Array< OneD, const NekDouble > &input)

SOLVER_UTILS_EXPORT Array< OneD, NekDouble > &	UpdatePhysField (const int i)

SOLVER_UTILS_EXPORT void	ZeroPhysFields ()

SOLVER_UTILS_EXPORT void	FwdTransFields ()

SOLVER_UTILS_EXPORT void	SetModifiedBasis (const bool modbasis)

SOLVER_UTILS_EXPORT int	GetCheckpointNumber ()

SOLVER_UTILS_EXPORT void	SetCheckpointNumber (int num)

SOLVER_UTILS_EXPORT int	GetCheckpointSteps ()

SOLVER_UTILS_EXPORT void	SetCheckpointSteps (int num)

SOLVER_UTILS_EXPORT int	GetInfoSteps ()

SOLVER_UTILS_EXPORT void	SetInfoSteps (int num)

SOLVER_UTILS_EXPORT void	SetIterationNumberPIT (int num)

SOLVER_UTILS_EXPORT void	SetWindowNumberPIT (int num)

SOLVER_UTILS_EXPORT Array< OneD, const Array< OneD, NekDouble > >	GetTraceNormals ()

SOLVER_UTILS_EXPORT LibUtilities::FieldMetaDataMap &	GetFieldMetaDataMap (void)

SOLVER_UTILS_EXPORT void	SetTime (const NekDouble time)

SOLVER_UTILS_EXPORT void	SetTimeStep (const NekDouble timestep)

SOLVER_UTILS_EXPORT void	SetInitialStep (const int step)

SOLVER_UTILS_EXPORT void	SetBoundaryConditions (NekDouble time)
	Evaluates the boundary conditions at the given time.

SOLVER_UTILS_EXPORT bool	NegatedOp ()
	Identify if operator is negated in DoSolve.

Public Member Functions inherited from Nektar::SolverUtils::ALEHelper
virtual	~ALEHelper ()=default

SOLVER_UTILS_EXPORT void	InitObject (int spaceDim, Array< OneD, MultiRegions::ExpListSharedPtr > &fields)

virtual SOLVER_UTILS_EXPORT void	v_UpdateGridVelocity (const NekDouble &time)

virtual SOLVER_UTILS_EXPORT void	v_ALEPreMultiplyMass (Array< OneD, Array< OneD, NekDouble > > &fields)

SOLVER_UTILS_EXPORT void	ALEDoElmtInvMass (Array< OneD, Array< OneD, NekDouble > > &traceNormals, Array< OneD, Array< OneD, NekDouble > > &fields, NekDouble time)
	Update m_fields with u^n by multiplying by inverse mass matrix. That's then used in e.g. checkpoint output and L^2 error calculation.

SOLVER_UTILS_EXPORT void	ALEDoElmtInvMassBwdTrans (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray)

SOLVER_UTILS_EXPORT void	MoveMesh (const NekDouble &time, Array< OneD, Array< OneD, NekDouble > > &traceNormals)

SOLVER_UTILS_EXPORT void	ResetMatricesNormal (Array< OneD, Array< OneD, NekDouble > > &traceNormals)

SOLVER_UTILS_EXPORT void	UpdateNormalsFlag ()

const Array< OneD, const Array< OneD, NekDouble > > &	GetGridVelocity ()

bool &	GetUpdateNormalsFlag ()

SOLVER_UTILS_EXPORT const Array< OneD, const Array< OneD, NekDouble > > &	GetGridVelocityTrace ()

SOLVER_UTILS_EXPORT void	ExtraFldOutputGridVelocity (std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)

SOLVER_UTILS_EXPORT void	ExtraFldOutputGrid (std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)

Public Member Functions inherited from Nektar::SolverUtils::FluidInterface
virtual	~FluidInterface ()=default

SOLVER_UTILS_EXPORT void	GetVelocity (const Array< OneD, const Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &velocity)
	Extract array with velocity from physfield.

SOLVER_UTILS_EXPORT bool	HasConstantDensity ()

SOLVER_UTILS_EXPORT void	GetDensity (const Array< OneD, const Array< OneD, NekDouble > > &physfield, Array< OneD, NekDouble > &density)
	Extract array with density from physfield.

SOLVER_UTILS_EXPORT void	GetPressure (const Array< OneD, const Array< OneD, NekDouble > > &physfield, Array< OneD, NekDouble > &pressure)
	Extract array with pressure from physfield.

SOLVER_UTILS_EXPORT void	SetMovingFrameVelocities (const Array< OneD, NekDouble > &vFrameVels)

SOLVER_UTILS_EXPORT bool	GetMovingFrameVelocities (Array< OneD, NekDouble > &vFrameVels)

SOLVER_UTILS_EXPORT void	SetMovingFrameDisp (const Array< OneD, NekDouble > &vFrameDisp)

SOLVER_UTILS_EXPORT bool	GetMovingFrameDisp (Array< OneD, NekDouble > &vFrameDisp)

SOLVER_UTILS_EXPORT void	SetMovingFramePivot (const Array< OneD, NekDouble > &vFramePivot)

SOLVER_UTILS_EXPORT void	GetMovingFramePivot (Array< OneD, NekDouble > &vFramePivot)

SOLVER_UTILS_EXPORT void	SetMovableDoFs (const std::set< int > &dirDoFs)

SOLVER_UTILS_EXPORT void	GetMovableDoFs (std::set< int > &dirDoFs)

SOLVER_UTILS_EXPORT void	SetAeroForce (Array< OneD, NekDouble > forces)
	Set aerodynamic force and moment.

SOLVER_UTILS_EXPORT void	GetAeroForce (Array< OneD, NekDouble > forces)
	Get aerodynamic force and moment.

Protected Member Functions
	CompressibleFlowSystem (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)

	~CompressibleFlowSystem () override=default

void	v_InitObject (bool DeclareFields=true) override
	Initialization object for CompressibleFlowSystem class.

void	v_GetPressure (const Array< OneD, const Array< OneD, NekDouble > > &physfield, Array< OneD, NekDouble > &pressure) override

void	v_GetDensity (const Array< OneD, const Array< OneD, NekDouble > > &physfield, Array< OneD, NekDouble > &density) override

bool	v_HasConstantDensity () override

void	v_GetVelocity (const Array< OneD, const Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &velocity) override

void	v_ALEInitObject (int spaceDim, Array< OneD, MultiRegions::ExpListSharedPtr > &fields) override

void	InitialiseParameters ()
	Load CFS parameters from the session file.

void	InitAdvection ()
	Create advection and diffusion objects for CFS.

void	DoOdeRhs (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
	Compute the right-hand side.

void	DoOdeProjection (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
	Compute the projection and call the method for imposing the boundary conditions in case of discontinuous projection.

void	DoAdvection (const Array< OneD, Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time, const Array< OneD, Array< OneD, NekDouble > > &pFwd, const Array< OneD, Array< OneD, NekDouble > > &pBwd)
	Compute the advection terms for the right-hand side.

void	DoDiffusion (const Array< OneD, Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const Array< OneD, Array< OneD, NekDouble > > &pFwd, const Array< OneD, Array< OneD, NekDouble > > &pBwd)
	Add the diffusions terms to the right-hand side.

void	GetFluxVector (const Array< OneD, const Array< OneD, NekDouble > > &physfield, TensorOfArray3D< NekDouble > &flux)
	Return the flux vector for the compressible Euler equations.

void	GetFluxVectorDeAlias (const Array< OneD, const Array< OneD, NekDouble > > &physfield, TensorOfArray3D< NekDouble > &flux)
	Return the flux vector for the compressible Euler equations by using the de-aliasing technique.

void	SetBoundaryConditions (Array< OneD, Array< OneD, NekDouble > > &physarray, NekDouble time)

void	SetBoundaryConditionsBwdWeight ()
	Set up a weight on physical boundaries for boundary condition applications.

void	GetElmtTimeStep (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, NekDouble > &tstep)
	Calculate the maximum timestep on each element subject to CFL restrictions.

NekDouble	v_GetTimeStep (const Array< OneD, const Array< OneD, NekDouble > > &inarray) override
	Calculate the maximum timestep subject to CFL restrictions.

void	v_GenerateSummary (SolverUtils::SummaryList &s) override
	Print a summary of time stepping parameters.

void	v_SetInitialConditions (NekDouble initialtime=0.0, bool dumpInitialConditions=true, const int domain=0) override
	Set up logic for residual calculation.

void	v_EvaluateExactSolution (unsigned int field, Array< OneD, NekDouble > &outfield, const NekDouble time=0.0) override

NekDouble	GetGamma ()

const Array< OneD, const Array< OneD, NekDouble > > &	GetVecLocs ()

const Array< OneD, const Array< OneD, NekDouble > > &	GetNormals ()

MultiRegions::ExpListSharedPtr	v_GetPressure () override

void	v_ExtraFldOutput (std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables) override

virtual void	v_DoDiffusion (const Array< OneD, Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const Array< OneD, Array< OneD, NekDouble > > &pFwd, const Array< OneD, Array< OneD, NekDouble > > &pBwd)=0

Array< OneD, NekDouble >	v_GetMaxStdVelocity (const NekDouble SpeedSoundFactor) override
	Compute the advection velocity in the standard space for each element of the expansion.

void	v_SteadyStateResidual (int step, Array< OneD, NekDouble > &L2) override

virtual bool	v_SupportsShockCaptType (const std::string type) const =0

Protected Member Functions inherited from Nektar::SolverUtils::AdvectionSystem
SOLVER_UTILS_EXPORT bool	v_PostIntegrate (int step) override

Protected Member Functions inherited from Nektar::SolverUtils::UnsteadySystem
SOLVER_UTILS_EXPORT	UnsteadySystem (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)
	Initialises UnsteadySystem class members.

SOLVER_UTILS_EXPORT void	v_InitObject (bool DeclareField=true) override
	Init object for UnsteadySystem class.

SOLVER_UTILS_EXPORT void	v_DoSolve () override
	Solves an unsteady problem.

virtual SOLVER_UTILS_EXPORT void	v_PrintStatusInformation (const int step, const NekDouble cpuTime)
	Print Status Information.

virtual SOLVER_UTILS_EXPORT void	v_PrintSummaryStatistics (const NekDouble intTime)
	Print Summary Statistics.

SOLVER_UTILS_EXPORT void	v_DoInitialise (bool dumpInitialConditions=true) override
	Sets up initial conditions.

SOLVER_UTILS_EXPORT void	v_GenerateSummary (SummaryList &s) override
	Print a summary of time stepping parameters.

virtual SOLVER_UTILS_EXPORT bool	v_PreIntegrate (int step)

virtual SOLVER_UTILS_EXPORT bool	v_RequireFwdTrans ()

virtual SOLVER_UTILS_EXPORT bool	v_UpdateTimeStepCheck ()

SOLVER_UTILS_EXPORT NekDouble	MaxTimeStepEstimator ()
	Get the maximum timestep estimator for cfl control.

SOLVER_UTILS_EXPORT void	CheckForRestartTime (NekDouble &time, int &nchk)

SOLVER_UTILS_EXPORT void	SVVVarDiffCoeff (const Array< OneD, Array< OneD, NekDouble > > vel, StdRegions::VarCoeffMap &varCoeffMap)
	Evaluate the SVV diffusion coefficient according to Moura's paper where it should proportional to h time velocity.

SOLVER_UTILS_EXPORT void	DoDummyProjection (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
	Perform dummy projection.

Protected Member Functions inherited from Nektar::SolverUtils::EquationSystem
SOLVER_UTILS_EXPORT	EquationSystem (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)
	Initialises EquationSystem class members.

virtual SOLVER_UTILS_EXPORT NekDouble	v_LinfError (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray)
	Virtual function for the L_inf error computation between fields and a given exact solution.

virtual SOLVER_UTILS_EXPORT NekDouble	v_L2Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray, bool Normalised=false)
	Virtual function for the L_2 error computation between fields and a given exact solution.

virtual SOLVER_UTILS_EXPORT NekDouble	v_H1Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray, bool Normalised=false)
	Virtual function for the H_1 error computation between fields and a given exact solution.

virtual SOLVER_UTILS_EXPORT void	v_TransCoeffToPhys ()
	Virtual function for transformation to physical space.

virtual SOLVER_UTILS_EXPORT void	v_TransPhysToCoeff ()
	Virtual function for transformation to coefficient space.

virtual SOLVER_UTILS_EXPORT void	v_Output (void)

virtual SOLVER_UTILS_EXPORT bool	v_NegatedOp (void)
	Virtual function to identify if operator is negated in DoSolve.

Protected Member Functions inherited from Nektar::SolverUtils::FluidInterface
virtual SOLVER_UTILS_EXPORT void	v_SetMovingFrameVelocities (const Array< OneD, NekDouble > &vFrameVels)

virtual SOLVER_UTILS_EXPORT bool	v_GetMovingFrameVelocities (Array< OneD, NekDouble > &vFrameVels)

virtual SOLVER_UTILS_EXPORT void	v_SetMovingFrameDisp (const Array< OneD, NekDouble > &vFrameDisp)

virtual SOLVER_UTILS_EXPORT bool	v_GetMovingFrameDisp (Array< OneD, NekDouble > &vFrameDisp)

virtual SOLVER_UTILS_EXPORT void	v_SetMovingFramePivot (const Array< OneD, NekDouble > &vFramePivot)

virtual SOLVER_UTILS_EXPORT void	v_GetMovingFramePivot (Array< OneD, NekDouble > &vFramePivot)

virtual SOLVER_UTILS_EXPORT void	v_SetAeroForce (Array< OneD, NekDouble > forces)

virtual SOLVER_UTILS_EXPORT void	v_GetAeroForce (Array< OneD, NekDouble > forces)

virtual SOLVER_UTILS_EXPORT void	v_SetMovableDoFs (const std::set< int > &dirDoFs)

virtual SOLVER_UTILS_EXPORT void	v_GetMovableDoFs (std::set< int > &dirDoFs)

Protected Attributes
SolverUtils::DiffusionSharedPtr	m_diffusion

ArtificialDiffusionSharedPtr	m_artificialDiffusion

Array< OneD, Array< OneD, NekDouble > >	m_vecLocs

NekDouble	m_gamma

std::string	m_shockCaptureType

NekDouble	m_filterAlpha

NekDouble	m_filterExponent

NekDouble	m_filterCutoff

bool	m_useFiltering

bool	m_useLocalTimeStep

Array< OneD, NekDouble >	m_muav

Array< OneD, NekDouble >	m_muavTrace

VariableConverterSharedPtr	m_varConv

std::vector< CFSBndCondSharedPtr >	m_bndConds

NekDouble	m_bndEvaluateTime

std::vector< SolverUtils::ForcingSharedPtr >	m_forcing

Protected Attributes inherited from Nektar::SolverUtils::AdvectionSystem
SolverUtils::AdvectionSharedPtr	m_advObject
	Advection term.

Protected Attributes inherited from Nektar::SolverUtils::UnsteadySystem
LibUtilities::TimeIntegrationSchemeSharedPtr	m_intScheme
	Wrapper to the time integration scheme.

LibUtilities::TimeIntegrationSchemeOperators	m_ode
	The time integration scheme operators to use.

Array< OneD, Array< OneD, NekDouble > >	m_previousSolution
	Storage for previous solution for steady-state check.

std::vector< int >	m_intVariables

NekDouble	m_cflSafetyFactor
	CFL safety factor (comprise between 0 to 1).

NekDouble	m_CFLGrowth
	CFL growth rate.

NekDouble	m_CFLEnd
	Maximun cfl in cfl growth.

int	m_abortSteps
	Number of steps between checks for abort conditions.

bool	m_explicitDiffusion
	Indicates if explicit or implicit treatment of diffusion is used.

bool	m_explicitAdvection
	Indicates if explicit or implicit treatment of advection is used.

bool	m_explicitReaction
	Indicates if explicit or implicit treatment of reaction is used.

int	m_steadyStateSteps
	Check for steady state at step interval.

NekDouble	m_steadyStateTol
	Tolerance to which steady state should be evaluated at.

int	m_filtersInfosteps
	Number of time steps between outputting filters information.

std::vector< std::pair< std::string, FilterSharedPtr > >	m_filters

bool	m_homoInitialFwd
	Flag to determine if simulation should start in homogeneous forward transformed state.

std::ofstream	m_errFile

NekDouble	m_epsilon
	Diffusion coefficient.

Protected Attributes inherited from Nektar::SolverUtils::EquationSystem
LibUtilities::CommSharedPtr	m_comm
	Communicator.

bool	m_verbose

LibUtilities::SessionReaderSharedPtr	m_session
	The session reader.

std::map< std::string, SolverUtils::SessionFunctionSharedPtr >	m_sessionFunctions
	Map of known SessionFunctions.

LibUtilities::FieldIOSharedPtr	m_fld
	Field input/output.

Array< OneD, MultiRegions::ExpListSharedPtr >	m_fields
	Array holding all dependent variables.

SpatialDomains::BoundaryConditionsSharedPtr	m_boundaryConditions
	Pointer to boundary conditions object.

SpatialDomains::MeshGraphSharedPtr	m_graph
	Pointer to graph defining mesh.

std::string	m_sessionName
	Name of the session.

NekDouble	m_time
	Current time of simulation.

int	m_initialStep
	Number of the step where the simulation should begin.

NekDouble	m_fintime
	Finish time of the simulation.

NekDouble	m_timestep
	Time step size.

NekDouble	m_lambda
	Lambda constant in real system if one required.

NekDouble	m_checktime
	Time between checkpoints.

NekDouble	m_lastCheckTime

NekDouble	m_TimeIncrementFactor

int	m_nchk
	Number of checkpoints written so far.

int	m_steps
	Number of steps to take.

int	m_checksteps
	Number of steps between checkpoints.

int	m_infosteps
	Number of time steps between outputting status information.

int	m_iterPIT = 0
	Number of parallel-in-time time iteration.

int	m_windowPIT = 0
	Index of windows for parallel-in-time time iteration.

int	m_spacedim
	Spatial dimension (>= expansion dim).

int	m_expdim
	Expansion dimension.

bool	m_singleMode
	Flag to determine if single homogeneous mode is used.

bool	m_halfMode
	Flag to determine if half homogeneous mode is used.

bool	m_multipleModes
	Flag to determine if use multiple homogenenous modes are used.

bool	m_useFFT
	Flag to determine if FFT is used for homogeneous transform.

bool	m_homogen_dealiasing
	Flag to determine if dealiasing is used for homogeneous simulations.

bool	m_specHP_dealiasing
	Flag to determine if dealisising is usde for the Spectral/hp element discretisation.

enum MultiRegions::ProjectionType	m_projectionType
	Type of projection; e.g continuous or discontinuous.

Array< OneD, Array< OneD, NekDouble > >	m_traceNormals
	Array holding trace normals for DG simulations in the forwards direction.

Array< OneD, bool >	m_checkIfSystemSingular
	Flag to indicate if the fields should be checked for singularity.

LibUtilities::FieldMetaDataMap	m_fieldMetaDataMap
	Map to identify relevant solver info to dump in output fields.

Array< OneD, NekDouble >	m_movingFrameData
	Moving reference frame status in the body frame X, Y, Z, Theta_x, Theta_y, Theta_z, [inertial] U, V, W, Omega_x, Omega_y, Omega_z, [body] A_x, A_y, A_z, DOmega_x, DOmega_y, DOmega_z, [body] pivot_x, pivot_y, pivot_z [body].

std::vector< std::string >	m_strFrameData
	variable name in m_movingFrameData

std::vector< bool >	m_movableDoFs

int	m_NumQuadPointsError
	Number of Quadrature points used to work out the error.

enum HomogeneousType	m_HomogeneousType

NekDouble	m_LhomX
	physical length in X direction (if homogeneous)

NekDouble	m_LhomY
	physical length in Y direction (if homogeneous)

NekDouble	m_LhomZ
	physical length in Z direction (if homogeneous)

int	m_npointsX
	number of points in X direction (if homogeneous)

int	m_npointsY
	number of points in Y direction (if homogeneous)

int	m_npointsZ
	number of points in Z direction (if homogeneous)

int	m_HomoDirec
	number of homogenous directions

Protected Attributes inherited from Nektar::SolverUtils::ALEHelper
Array< OneD, MultiRegions::ExpListSharedPtr >	m_fieldsALE

Array< OneD, Array< OneD, NekDouble > >	m_gridVelocity

Array< OneD, Array< OneD, NekDouble > >	m_gridVelocityTrace

std::vector< ALEBaseShPtr >	m_ALEs

bool	m_ALESolver = false

bool	m_meshDistorted = false

bool	m_implicitALESolver = false

bool	m_updateNormals = false

NekDouble	m_prevStageTime = 0.0

int	m_spaceDim

Private Member Functions
void	EvaluateIsentropicVortex (unsigned int field, Array< OneD, NekDouble > &outfield, NekDouble time, const int o=0)
	Isentropic Vortex Test Case.

void	GetExactRinglebFlow (int field, Array< OneD, NekDouble > &outarray)
	Ringleb Flow Test Case.

Friends
class	MemoryManager< CompressibleFlowSystem >

Additional Inherited Members
Static Public Attributes inherited from Nektar::SolverUtils::UnsteadySystem
static std::string	cmdSetStartTime

static std::string	cmdSetStartChkNum

Protected Types inherited from Nektar::SolverUtils::EquationSystem
enum	HomogeneousType { eHomogeneous1D , eHomogeneous2D , eHomogeneous3D , eNotHomogeneous }
	Parameter for homogeneous expansions. More...

Static Protected Attributes inherited from Nektar::SolverUtils::EquationSystem
static std::string	equationSystemTypeLookupIds []

static std::string	projectionTypeLookupIds []

Detailed Description

Definition at line 56 of file CompressibleFlowSystem.h.

Constructor & Destructor Documentation

◆ CompressibleFlowSystem()

Nektar::CompressibleFlowSystem::CompressibleFlowSystem	(	const LibUtilities::SessionReaderSharedPtr &	pSession,
		const SpatialDomains::MeshGraphSharedPtr &	pGraph
	)

protected

Definition at line 43 of file CompressibleFlowSystem.cpp.

    : UnsteadySystem(pSession, pGraph), AdvectionSystem(pSession, pGraph)
{
}

◆ ~CompressibleFlowSystem()

Nektar::CompressibleFlowSystem::~CompressibleFlowSystem ( )

overrideprotecteddefault

Member Function Documentation

◆ DoAdvection()

void Nektar::CompressibleFlowSystem::DoAdvection	(	const Array< OneD, Array< OneD, NekDouble > > &	inarray,
		Array< OneD, Array< OneD, NekDouble > > &	outarray,
		const NekDouble	time,
		const Array< OneD, Array< OneD, NekDouble > > &	pFwd,
		const Array< OneD, Array< OneD, NekDouble > > &	pBwd
	)

protected

Compute the advection terms for the right-hand side.

Definition at line 360 of file CompressibleFlowSystem.cpp.

{
    int nvariables = inarray.size();
    Array<OneD, Array<OneD, NekDouble>> advVel(m_spacedim);
 
    if (m_meshDistorted)
    {
        auto advWeakDGObject =
            std::dynamic_pointer_cast<SolverUtils::AdvectionWeakDG>(
                m_advObject);
        advWeakDGObject->AdvectCoeffs(nvariables, m_fields, advVel, inarray,
                                      outarray, time, pFwd, pBwd);
    }
    else
    {
        m_advObject->Advect(nvariables, m_fields, advVel, inarray, outarray,
                            time, pFwd, pBwd);
    }
}

References Nektar::SolverUtils::AdvectionSystem::m_advObject, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::ALEHelper::m_meshDistorted, and Nektar::SolverUtils::EquationSystem::m_spacedim.

Referenced by DoOdeRhs().

◆ DoDiffusion()

void Nektar::CompressibleFlowSystem::DoDiffusion	(	const Array< OneD, Array< OneD, NekDouble > > &	inarray,
		Array< OneD, Array< OneD, NekDouble > > &	outarray,
		const Array< OneD, Array< OneD, NekDouble > > &	pFwd,
		const Array< OneD, Array< OneD, NekDouble > > &	pBwd
	)

protected

Add the diffusions terms to the right-hand side.

Definition at line 387 of file CompressibleFlowSystem.cpp.

{
    v_DoDiffusion(inarray, outarray, pFwd, pBwd);
}

References v_DoDiffusion().

Referenced by DoOdeRhs().

◆ DoOdeProjection()

void Nektar::CompressibleFlowSystem::DoOdeProjection	(	const Array< OneD, const Array< OneD, NekDouble > > &	inarray,
		Array< OneD, Array< OneD, NekDouble > > &	outarray,
		const NekDouble	time
	)

protected

Compute the projection and call the method for imposing the boundary conditions in case of discontinuous projection.

Definition at line 313 of file CompressibleFlowSystem.cpp.

{
    size_t nvariables = inarray.size();
 
    // Perform ALE movement
    if (m_ALESolver)
    {
        MoveMesh(time, m_traceNormals);
    }
 
    switch (m_projectionType)
    {
        case MultiRegions::eDiscontinuous:
        {
            // Just copy over array
            for (size_t i = 0; i < nvariables; ++i)
            {
                Vmath::Vcopy(inarray[i].size(), inarray[i], 1, outarray[i], 1);
 
                if (m_useFiltering)
                {
                    m_fields[i]->ExponentialFilter(outarray[i], m_filterAlpha,
                                                   m_filterExponent,
                                                   m_filterCutoff);
                }
            }
            SetBoundaryConditions(outarray, time);
            break;
        }
        case MultiRegions::eGalerkin:
        case MultiRegions::eMixed_CG_Discontinuous:
        {
            NEKERROR(ErrorUtil::efatal, "No Continuous Galerkin for full "
                                        "compressible Navier-Stokes equations");
            break;
        }
        default:
            NEKERROR(ErrorUtil::efatal, "Unknown projection scheme");
            break;
    }
}

References Nektar::MultiRegions::eDiscontinuous, Nektar::ErrorUtil::efatal, Nektar::MultiRegions::eGalerkin, Nektar::MultiRegions::eMixed_CG_Discontinuous, Nektar::SolverUtils::ALEHelper::m_ALESolver, Nektar::SolverUtils::EquationSystem::m_fields, m_filterAlpha, m_filterCutoff, m_filterExponent, Nektar::SolverUtils::EquationSystem::m_projectionType, Nektar::SolverUtils::EquationSystem::m_traceNormals, m_useFiltering, Nektar::SolverUtils::ALEHelper::MoveMesh(), NEKERROR, SetBoundaryConditions(), and Vmath::Vcopy().

Referenced by Nektar::CFSImplicit::NonlinSysEvaluatorCoeff(), Nektar::CFSImplicit::PreconCoeff(), and v_InitObject().

◆ DoOdeRhs()

void Nektar::CompressibleFlowSystem::DoOdeRhs	(	const Array< OneD, const Array< OneD, NekDouble > > &	inarray,
		Array< OneD, Array< OneD, NekDouble > > &	outarray,
		const NekDouble	time
	)

protected

Compute the right-hand side.

Definition at line 214 of file CompressibleFlowSystem.cpp.

{
    LibUtilities::Timer timer;
 
    size_t nvariables = inarray.size();
    size_t nTracePts  = GetTraceTotPoints();
 
    // This converts our Mu in coefficient space to u in physical space for ALE
    Array<OneD, Array<OneD, NekDouble>> tmpIn(nvariables);
    if (m_meshDistorted)
    {
        ALEHelper::ALEDoElmtInvMassBwdTrans(inarray, tmpIn);
    }
    else
    {
        tmpIn = inarray;
    }
 
    m_bndEvaluateTime = time;
 
    // Store forwards/backwards space along trace space
    Array<OneD, Array<OneD, NekDouble>> Fwd(nvariables);
    Array<OneD, Array<OneD, NekDouble>> Bwd(nvariables);
 
    if (m_HomogeneousType == eHomogeneous1D)
    {
        Fwd = NullNekDoubleArrayOfArray;
        Bwd = NullNekDoubleArrayOfArray;
    }
    else
    {
        for (size_t i = 0; i < nvariables; ++i)
        {
            Fwd[i] = Array<OneD, NekDouble>(nTracePts, 0.0);
            Bwd[i] = Array<OneD, NekDouble>(nTracePts, 0.0);
            m_fields[i]->GetFwdBwdTracePhys(tmpIn[i], Fwd[i], Bwd[i]);
        }
        m_fields[0]->PeriodicBwdRot(Bwd);
        if (m_fields[0]->GetGraph()->GetMovement()->GetSectorRotateFlag())
        {
            m_fields[0]->RotLocalBwdTrace(Bwd);
        }
    }
 
    // Calculate advection
    timer.Start();
    DoAdvection(tmpIn, outarray, time, Fwd, Bwd);
    timer.Stop();
    timer.AccumulateRegion("DoAdvection");
 
    // Negate results
    for (size_t i = 0; i < nvariables; ++i)
    {
        Vmath::Neg(outarray[i].size(), outarray[i], 1);
    }
 
    // Add diffusion terms
    timer.Start();
    DoDiffusion(tmpIn, outarray, Fwd, Bwd);
    timer.Stop();
    timer.AccumulateRegion("DoDiffusion");
 
    // Add forcing terms
    for (auto &x : m_forcing)
    {
        x->Apply(m_fields, tmpIn, outarray, time);
    }
 
    if (m_useLocalTimeStep)
    {
        size_t nElements = m_fields[0]->GetExpSize();
        int nq, offset;
        NekDouble fac;
        Array<OneD, NekDouble> tmp;
 
        Array<OneD, NekDouble> tstep(nElements, 0.0);
        GetElmtTimeStep(tmpIn, tstep);
 
        // Loop over elements
        for (size_t n = 0; n < nElements; ++n)
        {
            nq     = m_fields[0]->GetExp(n)->GetTotPoints();
            offset = m_fields[0]->GetPhys_Offset(n);
            fac    = tstep[n] / m_timestep;
            for (size_t i = 0; i < nvariables; ++i)
            {
                Vmath::Smul(nq, fac, outarray[i] + offset, 1,
                            tmp = outarray[i] + offset, 1);
            }
        }
    }
}

References Nektar::LibUtilities::Timer::AccumulateRegion(), Nektar::SolverUtils::ALEHelper::ALEDoElmtInvMassBwdTrans(), DoAdvection(), DoDiffusion(), Nektar::SolverUtils::EquationSystem::eHomogeneous1D, GetElmtTimeStep(), Nektar::SolverUtils::EquationSystem::GetTraceTotPoints(), m_bndEvaluateTime, Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, Nektar::SolverUtils::EquationSystem::m_HomogeneousType, Nektar::SolverUtils::ALEHelper::m_meshDistorted, Nektar::SolverUtils::EquationSystem::m_timestep, m_useLocalTimeStep, Vmath::Neg(), Nektar::NullNekDoubleArrayOfArray, Vmath::Smul(), Nektar::LibUtilities::Timer::Start(), and Nektar::LibUtilities::Timer::Stop().

Referenced by v_InitObject(), and v_SteadyStateResidual().

◆ EvaluateIsentropicVortex()

void Nektar::CompressibleFlowSystem::EvaluateIsentropicVortex	(	unsigned int	field,
		Array< OneD, NekDouble > &	outfield,
		NekDouble	time,
		const int	o = `0`
	)

private

Isentropic Vortex Test Case.

Definition at line 1125 of file CompressibleFlowSystem.cpp.

{
    NekDouble beta, u0, v0, x0, y0;
 
    int nTotQuadPoints = GetTotPoints();
    Array<OneD, NekDouble> x(nTotQuadPoints);
    Array<OneD, NekDouble> y(nTotQuadPoints);
    Array<OneD, NekDouble> z(nTotQuadPoints);
    Array<OneD, Array<OneD, NekDouble>> u(m_spacedim + 2);
 
    m_fields[0]->GetCoords(x, y, z);
 
    for (int i = 0; i < m_spacedim + 2; ++i)
    {
        u[i] = Array<OneD, NekDouble>(nTotQuadPoints);
    }
    m_session->LoadParameter("IsentropicBeta", beta, 5.0);
    m_session->LoadParameter("IsentropicU0", u0, 1.0);
    m_session->LoadParameter("IsentropicV0", v0, 0.5);
    m_session->LoadParameter("IsentropicX0", x0, 5.0);
    m_session->LoadParameter("IsentropicY0", y0, 0.0);
 
    // Flow parameters
    NekDouble r, xbar, ybar, tmp;
    NekDouble fac = 1.0 / (16.0 * m_gamma * M_PI * M_PI);
 
    // In 3D zero rhow field.
    if (m_spacedim == 3)
    {
        Vmath::Zero(nTotQuadPoints, &u[3][o], 1);
    }
 
    // Fill storage
    for (int i = 0; i < nTotQuadPoints; ++i)
    {
        xbar = x[i] - u0 * time - x0;
        ybar = y[i] - v0 * time - y0;
        r    = sqrt(xbar * xbar + ybar * ybar);
        tmp  = beta * exp(1 - r * r);
        u[0][i + o] =
            pow(1.0 - (m_gamma - 1.0) * tmp * tmp * fac, 1.0 / (m_gamma - 1.0));
        u[1][i + o] = u[0][i + o] * (u0 - tmp * ybar / (2 * M_PI));
        u[2][i + o] = u[0][i + o] * (v0 + tmp * xbar / (2 * M_PI));
        u[m_spacedim + 1][i + o] =
            pow(u[0][i + o], m_gamma) / (m_gamma - 1.0) +
            0.5 * (u[1][i + o] * u[1][i + o] + u[2][i + o] * u[2][i + o]) /
                u[0][i + o];
    }
    Vmath::Vcopy(nTotQuadPoints, u[field].data(), 1, outfield.data(), 1);
}

References Nektar::LibUtilities::beta, Nektar::SolverUtils::EquationSystem::GetTotPoints(), Nektar::SolverUtils::EquationSystem::m_fields, m_gamma, Nektar::SolverUtils::EquationSystem::m_session, Nektar::SolverUtils::EquationSystem::m_spacedim, tinysimd::sqrt(), Vmath::Vcopy(), and Vmath::Zero().

Referenced by v_EvaluateExactSolution(), and v_SetInitialConditions().

◆ GetElmtTimeStep()

void Nektar::CompressibleFlowSystem::GetElmtTimeStep	(	const Array< OneD, const Array< OneD, NekDouble > > &	inarray,
		Array< OneD, NekDouble > &	tstep
	)

protected

Calculate the maximum timestep on each element subject to CFL restrictions.

Definition at line 621 of file CompressibleFlowSystem.cpp.

{
    size_t nElements = m_fields[0]->GetExpSize();
 
    // Change value of m_timestep (in case it is set to zero)
    NekDouble tmp = m_timestep;
    m_timestep    = 1.0;
 
    Array<OneD, NekDouble> cfl(nElements);
    cfl = GetElmtCFLVals();
 
    // Factors to compute the time-step limit
    NekDouble alpha = MaxTimeStepEstimator();
 
    // Loop over elements to compute the time-step limit for each element
    for (size_t n = 0; n < nElements; ++n)
    {
        tstep[n] = m_cflSafetyFactor * alpha / cfl[n];
    }
 
    // Restore value of m_timestep
    m_timestep = tmp;
}

References Nektar::SolverUtils::AdvectionSystem::GetElmtCFLVals(), Nektar::SolverUtils::UnsteadySystem::m_cflSafetyFactor, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_timestep, and Nektar::SolverUtils::UnsteadySystem::MaxTimeStepEstimator().

Referenced by DoOdeRhs(), and v_GetTimeStep().

◆ GetExactRinglebFlow()

void Nektar::CompressibleFlowSystem::GetExactRinglebFlow	(	int	field,
		Array< OneD, NekDouble > &	outarray
	)

private

Ringleb Flow Test Case.

Compute the exact solution for the Ringleb flow problem.

Definition at line 1181 of file CompressibleFlowSystem.cpp.

{
    int nTotQuadPoints = GetTotPoints();
 
    Array<OneD, NekDouble> rho(nTotQuadPoints, 100.0);
    Array<OneD, NekDouble> rhou(nTotQuadPoints);
    Array<OneD, NekDouble> rhov(nTotQuadPoints);
    Array<OneD, NekDouble> E(nTotQuadPoints);
    Array<OneD, NekDouble> x(nTotQuadPoints);
    Array<OneD, NekDouble> y(nTotQuadPoints);
    Array<OneD, NekDouble> z(nTotQuadPoints);
 
    m_fields[0]->GetCoords(x, y, z);
 
    // Flow parameters
    NekDouble c, k, phi, r, J, VV, pp, sint, P, ss;
    NekDouble J11, J12, J21, J22, det;
    NekDouble Fx, Fy;
    NekDouble xi, yi;
    NekDouble dV;
    NekDouble dtheta;
    NekDouble par1;
    NekDouble theta     = M_PI / 4.0;
    NekDouble kExt      = 0.7;
    NekDouble V         = kExt * sin(theta);
    NekDouble toll      = 1.0e-8;
    NekDouble errV      = 1.0;
    NekDouble errTheta  = 1.0;
    NekDouble gamma     = m_gamma;
    NekDouble gamma_1_2 = (gamma - 1.0) / 2.0;
 
    for (int i = 0; i < nTotQuadPoints; ++i)
    {
        while ((abs(errV) > toll) || (abs(errTheta) > toll))
        {
            VV   = V * V;
            sint = sin(theta);
            c    = sqrt(1.0 - gamma_1_2 * VV);
            k    = V / sint;
            phi  = 1.0 / k;
            pp   = phi * phi;
            J    = 1.0 / c + 1.0 / (3.0 * c * c * c) +
                1.0 / (5.0 * c * c * c * c * c) -
                0.5 * log((1.0 + c) / (1.0 - c));
 
            r    = pow(c, 1.0 / gamma_1_2);
            xi   = 1.0 / (2.0 * r) * (1.0 / VV - 2.0 * pp) + J / 2.0;
            yi   = phi / (r * V) * sqrt(1.0 - VV * pp);
            par1 = 25.0 - 5.0 * VV;
            ss   = sint * sint;
 
            Fx = xi - x[i];
            Fy = yi - y[i];
 
            J11 =
                39062.5 / pow(par1, 3.5) * (1.0 / VV - 2.0 / VV * ss) * V +
                1562.5 / pow(par1, 2.5) *
                    (-2.0 / (VV * V) + 4.0 / (VV * V) * ss) +
                12.5 / pow(par1, 1.5) * V + 312.5 / pow(par1, 2.5) * V +
                7812.5 / pow(par1, 3.5) * V -
                0.25 *
                    (-1.0 / pow(par1, 0.5) * V / (1.0 - 0.2 * pow(par1, 0.5)) -
                     (1.0 + 0.2 * pow(par1, 0.5)) /
                         pow((1.0 - 0.2 * pow(par1, 0.5)), 2.0) /
                         pow(par1, 0.5) * V) /
                    (1.0 + 0.2 * pow(par1, 0.5)) * (1.0 - 0.2 * pow(par1, 0.5));
 
            J12 = -6250.0 / pow(par1, 2.5) / VV * sint * cos(theta);
            J21 = -6250.0 / (VV * V) * sint / pow(par1, 2.5) *
                      pow((1.0 - ss), 0.5) +
                  78125.0 / V * sint / pow(par1, 3.5) * pow((1.0 - ss), 0.5);
 
            // the matrix is singular when theta = pi/2
            if (abs(y[i]) < toll && abs(cos(theta)) < toll)
            {
                J22 = -39062.5 / pow(par1, 3.5) / V +
                      3125 / pow(par1, 2.5) / (VV * V) +
                      12.5 / pow(par1, 1.5) * V + 312.5 / pow(par1, 2.5) * V +
                      7812.5 / pow(par1, 3.5) * V -
                      0.25 *
                          (-1.0 / pow(par1, 0.5) * V /
                               (1.0 - 0.2 * pow(par1, 0.5)) -
                           (1.0 + 0.2 * pow(par1, 0.5)) /
                               pow((1.0 - 0.2 * pow(par1, 0.5)), 2.0) /
                               pow(par1, 0.5) * V) /
                          (1.0 + 0.2 * pow(par1, 0.5)) *
                          (1.0 - 0.2 * pow(par1, 0.5));
 
                // dV = -dV/dx * Fx
                dV     = -1.0 / J22 * Fx;
                dtheta = 0.0;
                theta  = M_PI / 2.0;
            }
            else
            {
                J22 = 3125.0 / VV * cos(theta) / pow(par1, 2.5) *
                          pow((1.0 - ss), 0.5) -
                      3125.0 / VV * ss / pow(par1, 2.5) / pow((1.0 - ss), 0.5) *
                          cos(theta);
 
                det = -1.0 / (J11 * J22 - J12 * J21);
 
                // [dV dtheta]' = -[invJ]*[Fx Fy]'
                dV     = det * (J22 * Fx - J12 * Fy);
                dtheta = det * (-J21 * Fx + J11 * Fy);
            }
 
            V     = V + dV;
            theta = theta + dtheta;
 
            errV     = abs(dV);
            errTheta = abs(dtheta);
        }
 
        c = sqrt(1.0 - gamma_1_2 * VV);
        r = pow(c, 1.0 / gamma_1_2);
 
        rho[i]  = r;
        rhou[i] = rho[i] * V * cos(theta);
        rhov[i] = rho[i] * V * sin(theta);
        P       = (c * c) * rho[i] / gamma;
        E[i]    = P / (gamma - 1.0) +
               0.5 * (rhou[i] * rhou[i] / rho[i] + rhov[i] * rhov[i] / rho[i]);
 
        // Resetting the guess value
        errV     = 1.0;
        errTheta = 1.0;
        theta    = M_PI / 4.0;
        V        = kExt * sin(theta);
    }
 
    switch (field)
    {
        case 0:
            outarray = rho;
            break;
        case 1:
            outarray = rhou;
            break;
        case 2:
            outarray = rhov;
            break;
        case 3:
            outarray = E;
            break;
        default:
            ASSERTL0(false, "Error in variable number!");
            break;
    }
}

References tinysimd::abs(), ASSERTL0, Nektar::SolverUtils::EquationSystem::GetTotPoints(), tinysimd::log(), Nektar::SolverUtils::EquationSystem::m_fields, m_gamma, Nektar::LibUtilities::P, and tinysimd::sqrt().

Referenced by v_EvaluateExactSolution().

◆ GetFluxVector()

void Nektar::CompressibleFlowSystem::GetFluxVector	(	const Array< OneD, const Array< OneD, NekDouble > > &	physfield,
		TensorOfArray3D< NekDouble > &	flux
	)

protected

Return the flux vector for the compressible Euler equations.

Parameters

physfield	Fields.
flux	Resulting flux.

Definition at line 452 of file CompressibleFlowSystem.cpp.

{
    size_t nVariables = physfield.size();
    size_t nPts       = physfield[0].size();
 
    constexpr unsigned short maxVel = 3;
    constexpr unsigned short maxFld = 5;
 
    // hardcoding done for performance reasons
    ASSERTL1(nVariables <= maxFld, "GetFluxVector, hard coded max fields");
 
    for (size_t p = 0; p < nPts; ++p)
    {
        // local storage
        std::array<NekDouble, maxFld> fieldTmp = {0};
        std::array<NekDouble, maxVel> velocity = {0};
 
        // rearrenge and load data
        for (size_t f = 0; f < nVariables; ++f)
        {
            fieldTmp[f] = physfield[f][p]; // load
        }
 
        // 1 / rho
        NekDouble oneOrho = 1.0 / fieldTmp[0];
 
        for (size_t d = 0; d < m_spacedim; ++d)
        {
            // Flux vector for the rho equation
            flux[0][d][p] = fieldTmp[d + 1]; // store
            // compute velocity
            velocity[d] = fieldTmp[d + 1] * oneOrho;
        }
 
        NekDouble pressure = m_varConv->GetPressure(fieldTmp.data());
        NekDouble ePlusP   = fieldTmp[m_spacedim + 1] + pressure;
        for (size_t f = 0; f < m_spacedim; ++f)
        {
            // Flux vector for the velocity fields
            for (size_t d = 0; d < m_spacedim; ++d)
            {
                flux[f + 1][d][p] = velocity[d] * fieldTmp[f + 1]; // store
            }
 
            // Add pressure to appropriate field
            flux[f + 1][f][p] += pressure;
 
            // Flux vector for energy
            flux[m_spacedim + 1][f][p] = ePlusP * velocity[f]; // store
        }
    }
 
    // @TODO : for each row (3 columns) negative grid velocity component (d * d
    // + 2 (4 rows)) rho, rhou, rhov, rhow, E,
    // @TODO : top row is flux for rho etc... each row subtract v_g * conserved
    // variable for that row... For grid velocity subtract v_g * conserved
    // variable
    if (m_ALESolver)
    {
        for (int i = 0; i < m_spacedim + 2; ++i)
        {
            for (int j = 0; j < m_spacedim; ++j)
            {
                for (int k = 0; k < nPts; ++k)
                {
                    flux[i][j][k] -= physfield[i][k] * m_gridVelocity[j][k];
                }
            }
        }
    }
}

References ASSERTL1, Nektar::SolverUtils::ALEHelper::m_ALESolver, Nektar::SolverUtils::ALEHelper::m_gridVelocity, Nektar::SolverUtils::EquationSystem::m_spacedim, and m_varConv.

Referenced by InitAdvection().

◆ GetFluxVectorDeAlias()

void Nektar::CompressibleFlowSystem::GetFluxVectorDeAlias	(	const Array< OneD, const Array< OneD, NekDouble > > &	physfield,
		TensorOfArray3D< NekDouble > &	flux
	)

protected

Return the flux vector for the compressible Euler equations by using the de-aliasing technique.

Parameters

physfield	Fields.
flux	Resulting flux.

Definition at line 533 of file CompressibleFlowSystem.cpp.

{
    int i, j;
    size_t nq         = physfield[0].size();
    size_t nVariables = m_fields.size();
 
    // Factor to rescale 1d points in dealiasing
    NekDouble OneDptscale = 2;
    nq                    = m_fields[0]->Get1DScaledTotPoints(OneDptscale);
 
    Array<OneD, NekDouble> pressure(nq);
    Array<OneD, Array<OneD, NekDouble>> velocity(m_spacedim);
 
    Array<OneD, Array<OneD, NekDouble>> physfield_interp(nVariables);
    TensorOfArray3D<NekDouble> flux_interp(nVariables);
 
    for (size_t i = 0; i < nVariables; ++i)
    {
        physfield_interp[i] = Array<OneD, NekDouble>(nq);
        flux_interp[i]      = Array<OneD, Array<OneD, NekDouble>>(m_spacedim);
        m_fields[0]->PhysInterp1DScaled(OneDptscale, physfield[i],
                                        physfield_interp[i]);
 
        for (j = 0; j < m_spacedim; ++j)
        {
            flux_interp[i][j] = Array<OneD, NekDouble>(nq);
        }
    }
 
    // Flux vector for the rho equation
    for (i = 0; i < m_spacedim; ++i)
    {
        velocity[i] = Array<OneD, NekDouble>(nq);
 
        // Galerkin project solution back to original space
        m_fields[0]->PhysGalerkinProjection1DScaled(
            OneDptscale, physfield_interp[i + 1], flux[0][i]);
    }
 
    m_varConv->GetVelocityVector(physfield_interp, velocity);
    m_varConv->GetPressure(physfield_interp, pressure);
 
    // Evaluation of flux vector for the velocity fields
    for (i = 0; i < m_spacedim; ++i)
    {
        for (j = 0; j < m_spacedim; ++j)
        {
            Vmath::Vmul(nq, velocity[j], 1, physfield_interp[i + 1], 1,
                        flux_interp[i + 1][j], 1);
        }
 
        // Add pressure to appropriate field
        Vmath::Vadd(nq, flux_interp[i + 1][i], 1, pressure, 1,
                    flux_interp[i + 1][i], 1);
    }
 
    // Galerkin project solution back to original space
    for (i = 0; i < m_spacedim; ++i)
    {
        for (j = 0; j < m_spacedim; ++j)
        {
            m_fields[0]->PhysGalerkinProjection1DScaled(
                OneDptscale, flux_interp[i + 1][j], flux[i + 1][j]);
        }
    }
 
    // Evaluation of flux vector for energy
    Vmath::Vadd(nq, physfield_interp[m_spacedim + 1], 1, pressure, 1, pressure,
                1);
 
    for (j = 0; j < m_spacedim; ++j)
    {
        Vmath::Vmul(nq, velocity[j], 1, pressure, 1,
                    flux_interp[m_spacedim + 1][j], 1);
 
        // Galerkin project solution back to original space
        m_fields[0]->PhysGalerkinProjection1DScaled(
            OneDptscale, flux_interp[m_spacedim + 1][j],
            flux[m_spacedim + 1][j]);
    }
}

References Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_spacedim, m_varConv, Vmath::Vadd(), and Vmath::Vmul().

Referenced by InitAdvection().

◆ GetGamma()

NekDouble Nektar::CompressibleFlowSystem::GetGamma ( )

inlineprotected

Definition at line 182 of file CompressibleFlowSystem.h.

    {
        return m_gamma;
    }

References m_gamma.

Referenced by InitAdvection().

◆ GetNormals()

const Array< OneD, const Array< OneD, NekDouble > > & Nektar::CompressibleFlowSystem::GetNormals ( )

inlineprotected

Definition at line 192 of file CompressibleFlowSystem.h.

    {
        return m_traceNormals;
    }

References Nektar::SolverUtils::EquationSystem::m_traceNormals.

Referenced by InitAdvection().

◆ GetStabilityLimit()

NekDouble Nektar::CompressibleFlowSystem::GetStabilityLimit ( int n )

Function to calculate the stability limit for DG/CG.

Set the denominator to compute the time step when a cfl control is employed. This function is no longer used but is still here for being utilised in the future.

Parameters

n	Order of expansion element by element.

Definition at line 917 of file CompressibleFlowSystem.cpp.

{
    ASSERTL0(n <= 20, "Illegal modes dimension for CFL calculation "
                      "(P has to be less then 20)");
 
    NekDouble CFLDG[21] = {2.0000,   6.0000,   11.8424,  19.1569,  27.8419,
                           37.8247,  49.0518,  61.4815,  75.0797,  89.8181,
                           105.6700, 122.6200, 140.6400, 159.7300, 179.8500,
                           201.0100, 223.1800, 246.3600, 270.5300, 295.6900,
                           321.8300}; // CFLDG 1D [0-20]
    NekDouble CFL       = 0.0;
 
    if (m_projectionType == MultiRegions::eDiscontinuous)
    {
        CFL = CFLDG[n];
    }
    else
    {
        NEKERROR(ErrorUtil::efatal, "Continuous Galerkin stability "
                                    "coefficients not introduced yet.");
    }
 
    return CFL;
}

References ASSERTL0, Nektar::MultiRegions::eDiscontinuous, Nektar::ErrorUtil::efatal, Nektar::SolverUtils::EquationSystem::m_projectionType, and NEKERROR.

Referenced by GetStabilityLimitVector().

◆ GetStabilityLimitVector()

Array< OneD, NekDouble > Nektar::CompressibleFlowSystem::GetStabilityLimitVector ( const Array< OneD, int > & ExpOrder )

Function to calculate the stability limit for DG/CG (a vector of them).

Compute the vector of denominators to compute the time step when a cfl control is employed. This function is no longer used but is still here for being utilised in the future.

Parameters

ExpOrder Order of expansion element by element.

Definition at line 949 of file CompressibleFlowSystem.cpp.

{
    int i;
    Array<OneD, NekDouble> returnval(m_fields[0]->GetExpSize(), 0.0);
    for (i = 0; i < m_fields[0]->GetExpSize(); i++)
    {
        returnval[i] = GetStabilityLimit(ExpOrder[i]);
    }
    return returnval;
}

References Nektar::SolverUtils::EquationSystem::GetExpSize(), GetStabilityLimit(), and Nektar::SolverUtils::EquationSystem::m_fields.

◆ GetVecLocs()

const Array< OneD, const Array< OneD, NekDouble > > & Nektar::CompressibleFlowSystem::GetVecLocs ( )

inlineprotected

Definition at line 187 of file CompressibleFlowSystem.h.

    {
        return m_vecLocs;
    }

References m_vecLocs.

Referenced by InitAdvection().

◆ InitAdvection()

void Nektar::CompressibleFlowSystem::InitAdvection ( )

protected

Create advection and diffusion objects for CFS.

Definition at line 164 of file CompressibleFlowSystem.cpp.

{
    // Check if projection type is correct
    ASSERTL0(m_projectionType == MultiRegions::eDiscontinuous,
             "Unsupported projection type.");
 
    std::string advName, riemName;
    m_session->LoadSolverInfo("AdvectionType", advName, "WeakDG");
 
    m_advObject =
        SolverUtils::GetAdvectionFactory().CreateInstance(advName, advName);
 
    if (m_specHP_dealiasing)
    {
        m_advObject->SetFluxVector(
            &CompressibleFlowSystem::GetFluxVectorDeAlias, this);
    }
    else
    {
        m_advObject->SetFluxVector(&CompressibleFlowSystem::GetFluxVector,
                                   this);
    }
 
    // Setting up Riemann solver for advection operator
    m_session->LoadSolverInfo("UpwindType", riemName, "Average");
 
    SolverUtils::RiemannSolverSharedPtr riemannSolver;
    riemannSolver = SolverUtils::GetRiemannSolverFactory().CreateInstance(
        riemName, m_session);
 
    // Tell Riemann Solver if doing ALE and provide trace grid velocity
    riemannSolver->SetALEFlag(m_ALESolver);
    riemannSolver->SetUpdateNormalsFlag(&ALEHelper::GetUpdateNormalsFlag, this);
 
    riemannSolver->SetVector("vgt", &ALEHelper::GetGridVelocityTrace, this);
 
    // Setting up parameters for advection operator Riemann solver
    riemannSolver->SetParam("gamma", &CompressibleFlowSystem::GetGamma, this);
    riemannSolver->SetAuxVec("vecLocs", &CompressibleFlowSystem::GetVecLocs,
                             this);
    riemannSolver->SetVector("N", &CompressibleFlowSystem::GetNormals, this);
 
    // Concluding initialisation of advection / diffusion operators
    m_advObject->SetRiemannSolver(riemannSolver);
    m_advObject->InitObject(m_session, m_fields);
}

Referenced by v_InitObject().

◆ InitialiseParameters()

void Nektar::CompressibleFlowSystem::InitialiseParameters ( )

protected

Load CFS parameters from the session file.

Definition at line 128 of file CompressibleFlowSystem.cpp.

{
    // Get gamma parameter from session file.
    m_session->LoadParameter("Gamma", m_gamma, 1.4);
 
    // Shock capture
    m_session->LoadSolverInfo("ShockCaptureType", m_shockCaptureType, "Off");
 
    // Check if the shock capture type is supported
    std::string err_msg = "Warning, ShockCaptureType = " + m_shockCaptureType +
                          " is not supported by this solver";
    ASSERTL0(v_SupportsShockCaptType(m_shockCaptureType), err_msg);
 
    // Load parameters for exponential filtering
    m_session->MatchSolverInfo("ExponentialFiltering", "True", m_useFiltering,
                               false);
    if (m_useFiltering)
    {
        m_session->LoadParameter("FilterAlpha", m_filterAlpha, 36);
        m_session->LoadParameter("FilterExponent", m_filterExponent, 16);
        m_session->LoadParameter("FilterCutoff", m_filterCutoff, 0);
    }
 
    // Load CFL for local time-stepping (for steady state)
    m_session->MatchSolverInfo("LocalTimeStep", "True", m_useLocalTimeStep,
                               false);
    if (m_useLocalTimeStep)
    {
        ASSERTL0(m_cflSafetyFactor != 0,
                 "Local time stepping requires CFL parameter.");
    }
}

References ASSERTL0, Nektar::SolverUtils::UnsteadySystem::m_cflSafetyFactor, m_filterAlpha, m_filterCutoff, m_filterExponent, m_gamma, Nektar::SolverUtils::EquationSystem::m_session, m_shockCaptureType, m_useFiltering, m_useLocalTimeStep, and v_SupportsShockCaptType().

Referenced by v_InitObject().

◆ SetBoundaryConditions()

void Nektar::CompressibleFlowSystem::SetBoundaryConditions	(	Array< OneD, Array< OneD, NekDouble > > &	physarray,
		NekDouble	time
	)

protected

Definition at line 396 of file CompressibleFlowSystem.cpp.

{
    size_t nTracePts  = GetTraceTotPoints();
    size_t nvariables = physarray.size();
 
    // This converts our Mu in coefficient space to u in physical space for ALE
    Array<OneD, Array<OneD, NekDouble>> tmpIn(nvariables);
 
    if (m_meshDistorted)
    {
        ALEHelper::ALEDoElmtInvMassBwdTrans(physarray, tmpIn);
    }
    else
    {
        tmpIn = physarray;
    }
 
    Array<OneD, Array<OneD, NekDouble>> Fwd(nvariables);
    for (size_t i = 0; i < nvariables; ++i)
    {
        Fwd[i] = Array<OneD, NekDouble>(nTracePts);
        m_fields[i]->ExtractTracePhys(tmpIn[i], Fwd[i]);
    }
 
    if (!m_bndConds.empty())
    {
        // Loop over user-defined boundary conditions
        for (auto &x : m_bndConds)
        {
            x->Apply(Fwd, tmpIn, time);
        }
    }
}

References Nektar::SolverUtils::ALEHelper::ALEDoElmtInvMassBwdTrans(), Nektar::SolverUtils::EquationSystem::GetTraceTotPoints(), m_bndConds, Nektar::SolverUtils::EquationSystem::m_fields, and Nektar::SolverUtils::ALEHelper::m_meshDistorted.

Referenced by DoOdeProjection().

◆ SetBoundaryConditionsBwdWeight()

void Nektar::CompressibleFlowSystem::SetBoundaryConditionsBwdWeight ( )

protected

Set up a weight on physical boundaries for boundary condition applications.

Definition at line 434 of file CompressibleFlowSystem.cpp.

{
    if (m_bndConds.size())
    {
        // Loop over user-defined boundary conditions
        for (auto &x : m_bndConds)
        {
            x->ApplyBwdWeight();
        }
    }
}

References m_bndConds.

Referenced by Nektar::NavierStokesCFE::InitObject_Explicit(), and v_InitObject().

◆ v_ALEInitObject()

void Nektar::CompressibleFlowSystem::v_ALEInitObject	(	int	spaceDim,
		Array< OneD, MultiRegions::ExpListSharedPtr > &	fields
	)

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::ALEHelper.

Definition at line 1333 of file CompressibleFlowSystem.cpp.

{
    m_spaceDim  = spaceDim;
    m_fieldsALE = fields;
 
    if (fields[0]->GetGraph() != nullptr)
    {
        fields[0]->GetGraph()->GetMovement()->SetMeshDistortedFlag(
            m_meshDistorted);
    }
 
    // Initialise grid velocities as 0s
    m_gridVelocity      = Array<OneD, Array<OneD, NekDouble>>(m_spaceDim);
    m_gridVelocityTrace = Array<OneD, Array<OneD, NekDouble>>(m_spaceDim);
    for (int i = 0; i < spaceDim; ++i)
    {
        m_gridVelocity[i] =
            Array<OneD, NekDouble>(fields[0]->GetTotPoints(), 0.0);
        m_gridVelocityTrace[i] =
            Array<OneD, NekDouble>(fields[0]->GetTrace()->GetTotPoints(), 0.0);
    }
 
    ALEHelper::InitObject(spaceDim, fields);
}

References Nektar::SolverUtils::EquationSystem::GetTotPoints(), Nektar::SolverUtils::ALEHelper::InitObject(), Nektar::SolverUtils::ALEHelper::m_fieldsALE, Nektar::SolverUtils::ALEHelper::m_gridVelocity, Nektar::SolverUtils::ALEHelper::m_gridVelocityTrace, Nektar::SolverUtils::ALEHelper::m_meshDistorted, and Nektar::SolverUtils::ALEHelper::m_spaceDim.

◆ v_DoDiffusion()

virtual void Nektar::CompressibleFlowSystem::v_DoDiffusion	(	const Array< OneD, Array< OneD, NekDouble > > &	inarray,
		Array< OneD, Array< OneD, NekDouble > > &	outarray,
		const Array< OneD, Array< OneD, NekDouble > > &	pFwd,
		const Array< OneD, Array< OneD, NekDouble > > &	pBwd
	)

protectedpure virtual

Implemented in Nektar::EulerCFE, Nektar::EulerImplicitCFE, Nektar::NavierStokesImplicitCFE, Nektar::NavierStokesCFE, and Nektar::NavierStokesCFEAxisym.

Referenced by DoDiffusion().

◆ v_EvaluateExactSolution()

void Nektar::CompressibleFlowSystem::v_EvaluateExactSolution	(	unsigned int	field,
		Array< OneD, NekDouble > &	outfield,
		const NekDouble	time = `0.0`
	)

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 760 of file CompressibleFlowSystem.cpp.

{
 
    if (!m_session->DefinesFunction("ExactSolution") &&
        m_session->DefinesSolverInfo("ICTYPE"))
    {
        if (boost::iequals(m_session->GetSolverInfo("ICTYPE"),
                           "IsentropicVortex"))
        {
            EvaluateIsentropicVortex(field, outfield, time);
        }
        else if (boost::iequals(m_session->GetSolverInfo("ICTYPE"),
                                "RinglebFlow"))
        {
            GetExactRinglebFlow(field, outfield);
        }
    }
    else
    {
        EquationSystem::v_EvaluateExactSolution(field, outfield, time);
    }
}

References EvaluateIsentropicVortex(), GetExactRinglebFlow(), Nektar::SolverUtils::EquationSystem::m_session, and Nektar::SolverUtils::EquationSystem::v_EvaluateExactSolution().

◆ v_ExtraFldOutput()

void Nektar::CompressibleFlowSystem::v_ExtraFldOutput	(	std::vector< Array< OneD, NekDouble > > &	fieldcoeffs,
		std::vector< std::string > &	variables
	)

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::EquationSystem.

Reimplemented in Nektar::NavierStokesCFE.

Definition at line 961 of file CompressibleFlowSystem.cpp.

{
    bool extraFields;
    m_session->MatchSolverInfo("OutputExtraFields", "True", extraFields, true);
    if (extraFields)
    {
        const int nPhys   = m_fields[0]->GetNpoints();
        const int nCoeffs = m_fields[0]->GetNcoeffs();
        Array<OneD, Array<OneD, NekDouble>> tmp(m_fields.size());
 
        for (int i = 0; i < m_fields.size(); ++i)
        {
            tmp[i] = m_fields[i]->GetPhys();
        }
 
        Array<OneD, Array<OneD, NekDouble>> velocity(m_spacedim);
        Array<OneD, Array<OneD, NekDouble>> velFwd(m_spacedim);
        for (int i = 0; i < m_spacedim; ++i)
        {
            velocity[i] = Array<OneD, NekDouble>(nPhys);
            velFwd[i]   = Array<OneD, NekDouble>(nCoeffs);
        }
 
        Array<OneD, NekDouble> pressure(nPhys), temperature(nPhys);
        Array<OneD, NekDouble> entropy(nPhys);
        Array<OneD, NekDouble> soundspeed(nPhys), mach(nPhys);
        Array<OneD, NekDouble> sensor(nPhys), SensorKappa(nPhys);
 
        m_varConv->GetVelocityVector(tmp, velocity);
        m_varConv->GetPressure(tmp, pressure);
        m_varConv->GetTemperature(tmp, temperature);
        m_varConv->GetEntropy(tmp, entropy);
        m_varConv->GetSoundSpeed(tmp, soundspeed);
        m_varConv->GetMach(tmp, soundspeed, mach);
 
        int sensorOffset;
        m_session->LoadParameter("SensorOffset", sensorOffset, 1);
        m_varConv->GetSensor(m_fields[0], tmp, sensor, SensorKappa,
                             sensorOffset);
 
        Array<OneD, NekDouble> pFwd(nCoeffs), TFwd(nCoeffs);
        Array<OneD, NekDouble> sFwd(nCoeffs);
        Array<OneD, NekDouble> aFwd(nCoeffs), mFwd(nCoeffs);
        Array<OneD, NekDouble> sensFwd(nCoeffs);
 
        std::string velNames[3] = {"u", "v", "w"};
        for (int i = 0; i < m_spacedim; ++i)
        {
            m_fields[0]->FwdTransLocalElmt(velocity[i], velFwd[i]);
            variables.push_back(velNames[i]);
            fieldcoeffs.push_back(velFwd[i]);
        }
 
        m_fields[0]->FwdTransLocalElmt(pressure, pFwd);
        m_fields[0]->FwdTransLocalElmt(temperature, TFwd);
        m_fields[0]->FwdTransLocalElmt(entropy, sFwd);
        m_fields[0]->FwdTransLocalElmt(soundspeed, aFwd);
        m_fields[0]->FwdTransLocalElmt(mach, mFwd);
        m_fields[0]->FwdTransLocalElmt(sensor, sensFwd);
 
        variables.push_back("p");
        variables.push_back("T");
        variables.push_back("s");
        variables.push_back("a");
        variables.push_back("Mach");
        variables.push_back("Sensor");
        fieldcoeffs.push_back(pFwd);
        fieldcoeffs.push_back(TFwd);
        fieldcoeffs.push_back(sFwd);
        fieldcoeffs.push_back(aFwd);
        fieldcoeffs.push_back(mFwd);
        fieldcoeffs.push_back(sensFwd);
 
        if (m_artificialDiffusion)
        {
            // reuse pressure
            Array<OneD, NekDouble> sensorFwd(nCoeffs);
            m_artificialDiffusion->GetArtificialViscosity(tmp, pressure);
            m_fields[0]->FwdTransLocalElmt(pressure, sensorFwd);
 
            variables.push_back("ArtificialVisc");
            fieldcoeffs.push_back(sensorFwd);
        }
 
        if (m_ALESolver)
        {
            ExtraFldOutputGrid(fieldcoeffs, variables);
            ExtraFldOutputGridVelocity(fieldcoeffs, variables);
        }
    }
}

References Nektar::SolverUtils::ALEHelper::ExtraFldOutputGrid(), Nektar::SolverUtils::ALEHelper::ExtraFldOutputGridVelocity(), Nektar::SolverUtils::ALEHelper::m_ALESolver, m_artificialDiffusion, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, Nektar::SolverUtils::EquationSystem::m_spacedim, and m_varConv.

◆ v_GenerateSummary()

void Nektar::CompressibleFlowSystem::v_GenerateSummary ( SolverUtils::SummaryList & s )

overrideprotectedvirtual

Print a summary of time stepping parameters.

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 665 of file CompressibleFlowSystem.cpp.

{
    UnsteadySystem::v_GenerateSummary(s);
    if (m_session->DefinesSolverInfo("ICTYPE"))
    {
        if (boost::iequals(m_session->GetSolverInfo("ICTYPE"),
                           "IsentropicVortex"))
        {
            SolverUtils::AddSummaryItem(s, "Problem Type", "IsentropicVortex");
        }
        else if (boost::iequals(m_session->GetSolverInfo("ICTYPE"),
                                "RinglebFlow"))
        {
            SolverUtils::AddSummaryItem(s, "Problem Type", "RinglebFlow");
        }
        else
        {
            NEKERROR(ErrorUtil::efatal, "unknow initial condition");
        }
    }
}

References Nektar::SolverUtils::AddSummaryItem(), Nektar::ErrorUtil::efatal, Nektar::SolverUtils::EquationSystem::m_session, NEKERROR, and Nektar::SolverUtils::UnsteadySystem::v_GenerateSummary().

◆ v_GetDensity()

void Nektar::CompressibleFlowSystem::v_GetDensity	(	const Array< OneD, const Array< OneD, NekDouble > > &	physfield,
		Array< OneD, NekDouble > &	density
	)

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 1068 of file CompressibleFlowSystem.cpp.

{
    density = physfield[0];
}

◆ v_GetMaxStdVelocity()

Array< OneD, NekDouble > Nektar::CompressibleFlowSystem::v_GetMaxStdVelocity ( const NekDouble SpeedSoundFactor )

overrideprotectedvirtual

Compute the advection velocity in the standard space for each element of the expansion.

Reimplemented from Nektar::SolverUtils::AdvectionSystem.

Definition at line 788 of file CompressibleFlowSystem.cpp.

{
    size_t nTotQuadPoints = GetTotPoints();
    size_t n_element      = m_fields[0]->GetExpSize();
    size_t expdim         = m_fields[0]->GetGraph()->GetMeshDimension();
    size_t nfields        = m_fields.size();
    int offset;
    Array<OneD, NekDouble> tmp;
 
    Array<OneD, Array<OneD, NekDouble>> physfields(nfields);
    for (size_t i = 0; i < nfields; ++i)
    {
        physfields[i] = m_fields[i]->GetPhys();
    }
 
    Array<OneD, NekDouble> stdV(n_element, 0.0);
 
    // Getting the velocity vector on the 2D normal space
    Array<OneD, Array<OneD, NekDouble>> velocity(m_spacedim);
    Array<OneD, Array<OneD, NekDouble>> stdVelocity(m_spacedim);
    Array<OneD, Array<OneD, NekDouble>> stdSoundSpeed(m_spacedim);
    Array<OneD, NekDouble> soundspeed(nTotQuadPoints);
    LibUtilities::PointsKeyVector ptsKeys;
 
    for (int i = 0; i < m_spacedim; ++i)
    {
        velocity[i]      = Array<OneD, NekDouble>(nTotQuadPoints);
        stdVelocity[i]   = Array<OneD, NekDouble>(nTotQuadPoints, 0.0);
        stdSoundSpeed[i] = Array<OneD, NekDouble>(nTotQuadPoints, 0.0);
    }
 
    m_varConv->GetVelocityVector(physfields, velocity);
    m_varConv->GetSoundSpeed(physfields, soundspeed);
 
    // Subtract Ug from the velocity for the ALE formulation
    for (size_t i = 0; i < m_spacedim; ++i)
    {
        Vmath::Vsub(nTotQuadPoints, velocity[i], 1, m_gridVelocity[i], 1,
                    velocity[i], 1);
    }
 
    for (int el = 0; el < n_element; ++el)
    {
        ptsKeys = m_fields[0]->GetExp(el)->GetPointsKeys();
        offset  = m_fields[0]->GetPhys_Offset(el);
        int nq  = m_fields[0]->GetExp(el)->GetTotPoints();
 
        SpatialDomains::GeomFactors *metricInfo =
            m_fields[0]->GetExp(el)->GetGeomFactors();
        const Array<TwoD, const NekDouble> &gmat =
            metricInfo->GetDerivFactors();
 
        // Convert to standard element
        //    consider soundspeed in all directions
        //    (this might overestimate the cfl)
        if (metricInfo->GetGtype() == SpatialDomains::eDeformed)
        {
            // d xi/ dx = gmat = 1/J * d x/d xi
            for (size_t i = 0; i < expdim; ++i)
            {
                Vmath::Vmul(nq, gmat[i], 1, velocity[0] + offset, 1,
                            tmp = stdVelocity[i] + offset, 1);
                Vmath::Vmul(nq, gmat[i], 1, soundspeed + offset, 1,
                            tmp = stdSoundSpeed[i] + offset, 1);
                for (size_t j = 1; j < expdim; ++j)
                {
                    Vmath::Vvtvp(nq, gmat[expdim * j + i], 1,
                                 velocity[j] + offset, 1,
                                 stdVelocity[i] + offset, 1,
                                 tmp = stdVelocity[i] + offset, 1);
                    Vmath::Vvtvp(nq, gmat[expdim * j + i], 1,
                                 soundspeed + offset, 1,
                                 stdSoundSpeed[i] + offset, 1,
                                 tmp = stdSoundSpeed[i] + offset, 1);
                }
            }
        }
        else
        {
            for (size_t i = 0; i < expdim; ++i)
            {
                Vmath::Smul(nq, gmat[i][0], velocity[0] + offset, 1,
                            tmp = stdVelocity[i] + offset, 1);
                Vmath::Smul(nq, gmat[i][0], soundspeed + offset, 1,
                            tmp = stdSoundSpeed[i] + offset, 1);
                for (size_t j = 1; j < expdim; ++j)
                {
                    Vmath::Svtvp(nq, gmat[expdim * j + i][0],
                                 velocity[j] + offset, 1,
                                 stdVelocity[i] + offset, 1,
                                 tmp = stdVelocity[i] + offset, 1);
                    Vmath::Svtvp(nq, gmat[expdim * j + i][0],
                                 soundspeed + offset, 1,
                                 stdSoundSpeed[i] + offset, 1,
                                 tmp = stdSoundSpeed[i] + offset, 1);
                }
            }
        }
 
        NekDouble vel;
        for (size_t i = 0; i < nq; ++i)
        {
            NekDouble pntVelocity = 0.0;
            for (size_t j = 0; j < expdim; ++j)
            {
                // Add sound speed
                vel = std::abs(stdVelocity[j][offset + i]) +
                      SpeedSoundFactor * std::abs(stdSoundSpeed[j][offset + i]);
                pntVelocity += vel * vel;
            }
            pntVelocity = sqrt(pntVelocity);
            if (pntVelocity > stdV[el])
            {
                stdV[el] = pntVelocity;
            }
        }
    }
 
    return stdV;
}

References Nektar::SpatialDomains::eDeformed, Nektar::SpatialDomains::GeomFactors::GetDerivFactors(), Nektar::SpatialDomains::GeomFactors::GetGtype(), Nektar::SolverUtils::EquationSystem::GetTotPoints(), Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::ALEHelper::m_gridVelocity, Nektar::SolverUtils::EquationSystem::m_spacedim, m_varConv, Vmath::Smul(), tinysimd::sqrt(), Vmath::Svtvp(), Vmath::Vmul(), Vmath::Vsub(), and Vmath::Vvtvp().

◆ v_GetPressure() [1/2]

MultiRegions::ExpListSharedPtr Nektar::CompressibleFlowSystem::v_GetPressure ( void )

inlineoverrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 197 of file CompressibleFlowSystem.h.

    {
        ASSERTL0(false, "This function is not valid for this class");
        MultiRegions::ExpListSharedPtr null;
        return null;
    }

References ASSERTL0.

◆ v_GetPressure() [2/2]

void Nektar::CompressibleFlowSystem::v_GetPressure	(	const Array< OneD, const Array< OneD, NekDouble > > &	physfield,
		Array< OneD, NekDouble > &	pressure
	)

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 1058 of file CompressibleFlowSystem.cpp.

{
    m_varConv->GetPressure(physfield, pressure);
}

References m_varConv.

◆ v_GetTimeStep()

NekDouble Nektar::CompressibleFlowSystem::v_GetTimeStep ( const Array< OneD, const Array< OneD, NekDouble > > & inarray )

overrideprotectedvirtual

Calculate the maximum timestep subject to CFL restrictions.

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 650 of file CompressibleFlowSystem.cpp.

{
    int nElements = m_fields[0]->GetExpSize();
    Array<OneD, NekDouble> tstep(nElements, 0.0);
 
    GetElmtTimeStep(inarray, tstep);
 
    // Get the minimum time-step limit and return the time-step
    NekDouble TimeStep = Vmath::Vmin(nElements, tstep, 1);
    m_comm->GetSpaceComm()->AllReduce(TimeStep, LibUtilities::ReduceMin);
 
    return TimeStep;
}

References GetElmtTimeStep(), Nektar::SolverUtils::EquationSystem::m_comm, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::LibUtilities::ReduceMin, and Vmath::Vmin().

◆ v_GetVelocity()

void Nektar::CompressibleFlowSystem::v_GetVelocity	(	const Array< OneD, const Array< OneD, NekDouble > > &	physfield,
		Array< OneD, Array< OneD, NekDouble > > &	velocity
	)

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 1078 of file CompressibleFlowSystem.cpp.

{
    m_varConv->GetVelocityVector(physfield, velocity);
}

References m_varConv.

◆ v_HasConstantDensity()

bool Nektar::CompressibleFlowSystem::v_HasConstantDensity ( )

inlineoverrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 118 of file CompressibleFlowSystem.h.

    {
        return false;
    }

◆ v_InitObject()

void Nektar::CompressibleFlowSystem::v_InitObject ( bool DeclareFields = true )

overrideprotectedvirtual

Initialization object for CompressibleFlowSystem class.

Reimplemented from Nektar::SolverUtils::AdvectionSystem.

Reimplemented in Nektar::NavierStokesCFE, Nektar::EulerCFE, Nektar::EulerImplicitCFE, Nektar::NavierStokesCFEAxisym, and Nektar::NavierStokesImplicitCFE.

Definition at line 53 of file CompressibleFlowSystem.cpp.

{
    AdvectionSystem::v_InitObject(DeclareFields);
 
    for (size_t i = 0; i < m_fields.size(); i++)
    {
        // Use BwdTrans to make sure initial condition is in solution space
        m_fields[i]->BwdTrans(m_fields[i]->GetCoeffs(),
                              m_fields[i]->UpdatePhys());
    }
 
    m_varConv = MemoryManager<VariableConverter>::AllocateSharedPtr(
        m_session, m_spacedim, m_graph);
 
    ASSERTL0(m_session->DefinesSolverInfo("UPWINDTYPE"),
             "No UPWINDTYPE defined in session.");
 
    // Do not forwards transform initial condition
    m_homoInitialFwd = false;
 
    // Set up locations of velocity vector.
    m_vecLocs    = Array<OneD, Array<OneD, NekDouble>>(1);
    m_vecLocs[0] = Array<OneD, NekDouble>(m_spacedim);
    for (int i = 0; i < m_spacedim; ++i)
    {
        m_vecLocs[0][i] = 1 + i;
    }
 
    // Loading parameters from session file
    InitialiseParameters();
 
    // Setting up advection and diffusion operators
    InitAdvection();
 
    // Create artificial diffusion with laplacian operator
    if (m_shockCaptureType == "NonSmooth")
    {
        m_artificialDiffusion = GetArtificialDiffusionFactory().CreateInstance(
            m_shockCaptureType, m_session, m_fields, m_spacedim);
    }
 
    // Forcing terms for the sponge region
    m_forcing = SolverUtils::Forcing::Load(m_session, shared_from_this(),
                                           m_fields, m_fields.size());
 
    // User-defined boundary conditions
    size_t cnt = 0;
    for (size_t n = 0; n < (size_t)m_fields[0]->GetBndConditions().size(); ++n)
    {
        std::string type = m_fields[0]->GetBndConditions()[n]->GetUserDefined();
 
        if (m_fields[0]->GetBndConditions()[n]->GetBoundaryConditionType() ==
            SpatialDomains::ePeriodic)
        {
            continue;
        }
 
        if (!type.empty())
        {
            m_bndConds.push_back(GetCFSBndCondFactory().CreateInstance(
                type, m_session, m_fields, m_traceNormals, m_gridVelocityTrace,
                m_spacedim, n, cnt));
        }
        cnt += m_fields[0]->GetBndCondExpansions()[n]->GetExpSize();
    }
 
    m_ode.DefineOdeRhs(&CompressibleFlowSystem::DoOdeRhs, this);
    m_ode.DefineProjection(&CompressibleFlowSystem::DoOdeProjection, this);
 
    SetBoundaryConditionsBwdWeight();
}

Referenced by Nektar::NavierStokesCFE::v_InitObject(), Nektar::CFSImplicit::v_InitObject(), and Nektar::EulerCFE::v_InitObject().

◆ v_SetInitialConditions()

void Nektar::CompressibleFlowSystem::v_SetInitialConditions	(	NekDouble	initialtime = `0.0`,
		bool	dumpInitialConditions = `true`,
		const int	domain = `0`
	)

overrideprotectedvirtual

Set up logic for residual calculation.

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 690 of file CompressibleFlowSystem.cpp.

{
    if (m_session->DefinesSolverInfo("ICTYPE") &&
        boost::iequals(m_session->GetSolverInfo("ICTYPE"), "IsentropicVortex"))
    {
        // Forward transform to fill the coefficient space
        for (int i = 0; i < m_fields.size(); ++i)
        {
            EvaluateIsentropicVortex(i, m_fields[i]->UpdatePhys(), initialtime);
            m_fields[i]->SetPhysState(true);
            m_fields[i]->FwdTrans(m_fields[i]->GetPhys(),
                                  m_fields[i]->UpdateCoeffs());
        }
    }
    else
    {
        EquationSystem::v_SetInitialConditions(initialtime, false);
        m_nchk--; // Note: m_nchk has been incremented in EquationSystem.
 
        // insert white noise in initial condition
        NekDouble Noise;
        int phystot = m_fields[0]->GetTotPoints();
        Array<OneD, NekDouble> noise(phystot);
 
        m_session->LoadParameter("Noise", Noise, 0.0);
        int m_nConvectiveFields = m_fields.size();
 
        if (Noise > 0.0)
        {
            int seed = -m_comm->GetSpaceComm()->GetRank() * m_nConvectiveFields;
            for (int i = 0; i < m_nConvectiveFields; i++)
            {
                Vmath::FillWhiteNoise(phystot, Noise, noise, 1, seed);
                --seed;
                Vmath::Vadd(phystot, m_fields[i]->GetPhys(), 1, noise, 1,
                            m_fields[i]->UpdatePhys(), 1);
                m_fields[i]->FwdTransLocalElmt(m_fields[i]->GetPhys(),
                                               m_fields[i]->UpdateCoeffs());
            }
        }
    }
 
    // Update time in field info if required
    if (m_fieldMetaDataMap.find("Time") != m_fieldMetaDataMap.end())
    {
        m_fieldMetaDataMap["Time"] = boost::lexical_cast<std::string>(m_time);
    }
 
    if (dumpInitialConditions && m_nchk == 0 && m_checksteps &&
        !m_comm->IsParallelInTime())
    {
        Checkpoint_Output(0);
    }
    else if (dumpInitialConditions && m_nchk == 0 && m_comm->IsParallelInTime())
    {
        std::string newdir = m_sessionName + ".pit";
        if (!fs::is_directory(newdir))
        {
            fs::create_directory(newdir);
        }
        if (m_comm->GetTimeComm()->GetRank() == 0)
        {
            WriteFld(newdir + "/" + m_sessionName + "_0.fld");
        }
    }
    m_nchk++;
}

◆ v_SteadyStateResidual()

void Nektar::CompressibleFlowSystem::v_SteadyStateResidual	(	int	step,
		Array< OneD, NekDouble > &	L2
	)

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 1085 of file CompressibleFlowSystem.cpp.

{
    const size_t nPoints = GetTotPoints();
    const size_t nFields = m_fields.size();
    Array<OneD, Array<OneD, NekDouble>> rhs(nFields);
    Array<OneD, Array<OneD, NekDouble>> inarray(nFields);
    for (size_t i = 0; i < nFields; ++i)
    {
        rhs[i]     = Array<OneD, NekDouble>(nPoints, 0.0);
        inarray[i] = m_fields[i]->UpdatePhys();
    }
 
    DoOdeRhs(inarray, rhs, m_time);
 
    // Holds L2 errors.
    Array<OneD, NekDouble> tmp;
    Array<OneD, NekDouble> RHSL2(nFields);
    Array<OneD, NekDouble> residual(nFields);
 
    for (size_t i = 0; i < nFields; ++i)
    {
        tmp = rhs[i];
 
        Vmath::Vmul(nPoints, tmp, 1, tmp, 1, tmp, 1);
        residual[i] = Vmath::Vsum(nPoints, tmp, 1);
    }
 
    m_comm->GetSpaceComm()->AllReduce(residual, LibUtilities::ReduceSum);
 
    NekDouble onPoints = 1.0 / NekDouble(nPoints);
    for (size_t i = 0; i < nFields; ++i)
    {
        L2[i] = sqrt(residual[i] * onPoints);
    }
}

References DoOdeRhs(), Nektar::SolverUtils::EquationSystem::GetTotPoints(), Nektar::SolverUtils::EquationSystem::m_comm, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_time, Nektar::LibUtilities::ReduceSum, tinysimd::sqrt(), Vmath::Vmul(), and Vmath::Vsum().

◆ v_SupportsShockCaptType()

virtual bool Nektar::CompressibleFlowSystem::v_SupportsShockCaptType ( const std::string type ) const

protectedpure virtual

Implemented in Nektar::EulerImplicitCFE, Nektar::NavierStokesImplicitCFE, Nektar::EulerCFE, and Nektar::NavierStokesCFE.

Referenced by InitialiseParameters().

Friends And Related Symbol Documentation

◆ MemoryManager< CompressibleFlowSystem >

friend class MemoryManager< CompressibleFlowSystem >

friend

Definition at line 1 of file CompressibleFlowSystem.h.

Member Data Documentation

◆ m_artificialDiffusion

ArtificialDiffusionSharedPtr Nektar::CompressibleFlowSystem::m_artificialDiffusion

protected

Definition at line 72 of file CompressibleFlowSystem.h.

Referenced by Nektar::EulerCFE::v_DoDiffusion(), Nektar::NavierStokesCFE::v_DoDiffusion(), Nektar::NavierStokesImplicitCFE::v_DoDiffusionCoeff(), v_ExtraFldOutput(), Nektar::NavierStokesCFE::v_ExtraFldOutput(), and v_InitObject().

◆ m_bndConds

std::vector<CFSBndCondSharedPtr> Nektar::CompressibleFlowSystem::m_bndConds

protected

Definition at line 96 of file CompressibleFlowSystem.h.

Referenced by Nektar::CFSImplicit::NumCalcRiemFluxJac(), SetBoundaryConditions(), SetBoundaryConditionsBwdWeight(), and v_InitObject().

◆ m_bndEvaluateTime

NekDouble Nektar::CompressibleFlowSystem::m_bndEvaluateTime

protected

Definition at line 98 of file CompressibleFlowSystem.h.

Referenced by Nektar::CFSImplicit::CalcTraceNumericalFlux(), Nektar::CFSImplicit::DoImplicitSolveCoeff(), DoOdeRhs(), Nektar::CFSImplicit::DoOdeRhsCoeff(), Nektar::CFSImplicit::GetTraceJac(), Nektar::CFSImplicit::NonlinSysEvaluatorCoeff(), Nektar::CFSImplicit::PreconCoeff(), Nektar::NavierStokesCFE::v_DoDiffusion(), and Nektar::NavierStokesImplicitCFE::v_DoDiffusionCoeff().

◆ m_diffusion

SolverUtils::DiffusionSharedPtr Nektar::CompressibleFlowSystem::m_diffusion

protected

Definition at line 71 of file CompressibleFlowSystem.h.

Referenced by Nektar::CFSImplicit::CalcTraceNumericalFlux(), Nektar::NavierStokesCFE::GetDivCurlSquared(), Nektar::NavierStokesCFE::InitObject_Explicit(), Nektar::NavierStokesImplicitCFE::v_CalcPhysDeriv(), Nektar::NavierStokesCFE::v_DoDiffusion(), and Nektar::NavierStokesImplicitCFE::v_DoDiffusionCoeff().

◆ m_filterAlpha

NekDouble Nektar::CompressibleFlowSystem::m_filterAlpha

protected

Definition at line 78 of file CompressibleFlowSystem.h.

Referenced by DoOdeProjection(), and InitialiseParameters().

◆ m_filterCutoff

NekDouble Nektar::CompressibleFlowSystem::m_filterCutoff

protected

Definition at line 80 of file CompressibleFlowSystem.h.

Referenced by DoOdeProjection(), and InitialiseParameters().

◆ m_filterExponent

NekDouble Nektar::CompressibleFlowSystem::m_filterExponent

protected

Definition at line 79 of file CompressibleFlowSystem.h.

Referenced by DoOdeProjection(), and InitialiseParameters().

◆ m_forcing

std::vector<SolverUtils::ForcingSharedPtr> Nektar::CompressibleFlowSystem::m_forcing

protected

Definition at line 101 of file CompressibleFlowSystem.h.

Referenced by DoOdeRhs(), Nektar::CFSImplicit::DoOdeRhsCoeff(), and v_InitObject().

◆ m_gamma

NekDouble Nektar::CompressibleFlowSystem::m_gamma

protected

Definition at line 74 of file CompressibleFlowSystem.h.

◆ m_muav

Array<OneD, NekDouble> Nektar::CompressibleFlowSystem::m_muav

protected

Definition at line 87 of file CompressibleFlowSystem.h.

◆ m_muavTrace

Array<OneD, NekDouble> Nektar::CompressibleFlowSystem::m_muavTrace

protected

Definition at line 90 of file CompressibleFlowSystem.h.

◆ m_shockCaptureType

std::string Nektar::CompressibleFlowSystem::m_shockCaptureType

protected

Definition at line 75 of file CompressibleFlowSystem.h.

Referenced by InitialiseParameters(), Nektar::NavierStokesCFE::InitObject_Explicit(), and v_InitObject().

◆ m_useFiltering

bool Nektar::CompressibleFlowSystem::m_useFiltering

protected

Definition at line 81 of file CompressibleFlowSystem.h.

Referenced by DoOdeProjection(), and InitialiseParameters().

◆ m_useLocalTimeStep

bool Nektar::CompressibleFlowSystem::m_useLocalTimeStep

protected

Definition at line 84 of file CompressibleFlowSystem.h.

Referenced by DoOdeRhs(), Nektar::CFSImplicit::DoOdeRhsCoeff(), and InitialiseParameters().

◆ m_varConv

VariableConverterSharedPtr Nektar::CompressibleFlowSystem::m_varConv

protected

Definition at line 93 of file CompressibleFlowSystem.h.

◆ m_vecLocs

Array<OneD, Array<OneD, NekDouble> > Nektar::CompressibleFlowSystem::m_vecLocs

protected

Definition at line 73 of file CompressibleFlowSystem.h.

Referenced by GetVecLocs(), and v_InitObject().

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ CompressibleFlowSystem()

◆ ~CompressibleFlowSystem()

Member Function Documentation

◆ DoAdvection()

◆ DoDiffusion()

◆ DoOdeProjection()

◆ DoOdeRhs()

◆ EvaluateIsentropicVortex()

◆ GetElmtTimeStep()

◆ GetExactRinglebFlow()

◆ GetFluxVector()

◆ GetFluxVectorDeAlias()

◆ GetGamma()

◆ GetNormals()

◆ GetStabilityLimit()

◆ GetStabilityLimitVector()

◆ GetVecLocs()

◆ InitAdvection()

◆ InitialiseParameters()

◆ SetBoundaryConditions()

◆ SetBoundaryConditionsBwdWeight()

◆ v_ALEInitObject()

◆ v_DoDiffusion()

◆ v_EvaluateExactSolution()

◆ v_ExtraFldOutput()

◆ v_GenerateSummary()

◆ v_GetDensity()

◆ v_GetMaxStdVelocity()

◆ v_GetPressure() [1/2]

◆ v_GetPressure() [2/2]

◆ v_GetTimeStep()

◆ v_GetVelocity()

◆ v_HasConstantDensity()

◆ v_InitObject()

◆ v_SetInitialConditions()

◆ v_SteadyStateResidual()

◆ v_SupportsShockCaptType()

Friends And Related Symbol Documentation

◆ MemoryManager< CompressibleFlowSystem >

Member Data Documentation

◆ m_artificialDiffusion

◆ m_bndConds

◆ m_bndEvaluateTime

◆ m_diffusion

◆ m_filterAlpha

◆ m_filterCutoff

◆ m_filterExponent

◆ m_forcing

◆ m_gamma

◆ m_muav

◆ m_muavTrace

◆ m_shockCaptureType

◆ m_useFiltering

◆ m_useLocalTimeStep

◆ m_varConv

◆ m_vecLocs