#include <CompressibleFlowSystem.h>

Inheritance diagram for Nektar::CompressibleFlowSystem:

Collaboration diagram for Nektar::CompressibleFlowSystem:

Public Member Functions
virtual	~CompressibleFlowSystem ()
	Destructor for CompressibleFlowSystem class. More...

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

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

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

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

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

SOLVER_UTILS_EXPORT void	SetUpTraceNormals (void)

SOLVER_UTILS_EXPORT void	InitObject ()
	Initialises the members of this object. More...

SOLVER_UTILS_EXPORT void	DoInitialise ()
	Perform any initialisation necessary before solving the problem. More...

SOLVER_UTILS_EXPORT void	DoSolve ()
	Solve the problem. More...

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

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

SOLVER_UTILS_EXPORT void	Output ()
	Perform output operations after solve. More...

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

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

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

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

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

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

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

SOLVER_UTILS_EXPORT void	SetLambda (NekDouble lambda)
	Set parameter m_lambda. More...

SOLVER_UTILS_EXPORT void	EvaluateFunction (Array< OneD, Array< OneD, NekDouble > > &pArray, std::string pFunctionName, const NekDouble pTime=0.0, const int domain=0)
	Evaluates a function as specified in the session file. More...

SOLVER_UTILS_EXPORT void	EvaluateFunction (std::vector< std::string > pFieldNames, Array< OneD, Array< OneD, NekDouble > > &pFields, const std::string &pName, const NekDouble &pTime=0.0, const int domain=0)
	Populate given fields with the function from session. More...

SOLVER_UTILS_EXPORT void	EvaluateFunction (std::vector< std::string > pFieldNames, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const std::string &pName, const NekDouble &pTime=0.0, const int domain=0)
	Populate given fields with the function from session. More...

SOLVER_UTILS_EXPORT void	EvaluateFunction (std::string pFieldName, Array< OneD, NekDouble > &pArray, const std::string &pFunctionName, const NekDouble &pTime=0.0, const int domain=0)

SOLVER_UTILS_EXPORT std::string	DescribeFunction (std::string pFieldName, const std::string &pFunctionName, const int domain)
	Provide a description of a function for a given field name. More...

SOLVER_UTILS_EXPORT void	InitialiseBaseFlow (Array< OneD, Array< OneD, NekDouble > > &base)
	Perform initialisation of the base flow. More...

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

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

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. More...

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

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]. More...

SOLVER_UTILS_EXPORT void	WeakAdvectionGreensDivergenceForm (const Array< OneD, Array< OneD, NekDouble > > &F, Array< OneD, NekDouble > &outarray)
	Compute the inner product $(\nabla \phi \cdot F)$ . More...

SOLVER_UTILS_EXPORT void	WeakAdvectionDivergenceForm (const Array< OneD, Array< OneD, NekDouble > > &F, Array< OneD, NekDouble > &outarray)
	Compute the inner product $(\phi, \nabla \cdot F)$ . More...

SOLVER_UTILS_EXPORT void	WeakAdvectionNonConservativeForm (const Array< OneD, Array< OneD, NekDouble > > &V, const Array< OneD, const NekDouble > &u, Array< OneD, NekDouble > &outarray, bool UseContCoeffs=false)
	Compute the inner product $(\phi, V\cdot \nabla u)$ . More...

f SOLVER_UTILS_EXPORT void	AdvectionNonConservativeForm (const Array< OneD, Array< OneD, NekDouble > > &V, const Array< OneD, const NekDouble > &u, Array< OneD, NekDouble > &outarray, Array< OneD, NekDouble > &wk=NullNekDouble1DArray)
	Compute the non-conservative advection. More...

SOLVER_UTILS_EXPORT void	WeakDGAdvection (const Array< OneD, Array< OneD, NekDouble > > &InField, Array< OneD, Array< OneD, NekDouble > > &OutField, bool NumericalFluxIncludesNormal=true, bool InFieldIsInPhysSpace=false, int nvariables=0)
	Calculate the weak discontinuous Galerkin advection. More...

SOLVER_UTILS_EXPORT void	WeakDGDiffusion (const Array< OneD, Array< OneD, NekDouble > > &InField, Array< OneD, Array< OneD, NekDouble > > &OutField, bool NumericalFluxIncludesNormal=true, bool InFieldIsInPhysSpace=false)
	Calculate weak DG Diffusion in the LDG form. More...

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

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. More...

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

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

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. More...

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

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. More...

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. More...

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. More...

SOLVER_UTILS_EXPORT void	ScanForHistoryPoints ()
	Builds map of which element holds each history point. More...

SOLVER_UTILS_EXPORT void	WriteHistoryData (std::ostream &out)
	Probe each history point and write to file. More...

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

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

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

SOLVER_UTILS_EXPORT NekDouble	GetFinalTime ()
	Return final time. More...

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	GetNumElmVelocity ()

SOLVER_UTILS_EXPORT int	GetSteps ()

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, Array< OneD, NekDouble > &output)

SOLVER_UTILS_EXPORT void	SetSteps (const int steps)

SOLVER_UTILS_EXPORT void	ZeroPhysFields ()

SOLVER_UTILS_EXPORT void	FwdTransFields ()

SOLVER_UTILS_EXPORT void	GetFluxVector (const int i, Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &flux)

SOLVER_UTILS_EXPORT void	GetFluxVector (const int i, Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &fluxX, Array< OneD, Array< OneD, NekDouble > > &fluxY)

SOLVER_UTILS_EXPORT void	GetFluxVector (const int i, const int j, Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &flux)

SOLVER_UTILS_EXPORT void	NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numflux)

SOLVER_UTILS_EXPORT void	NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numfluxX, Array< OneD, Array< OneD, NekDouble > > &numfluxY)

SOLVER_UTILS_EXPORT void	NumFluxforScalar (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &uflux)

SOLVER_UTILS_EXPORT void	NumFluxforVector (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &qfield, Array< OneD, Array< OneD, NekDouble > > &qflux)

SOLVER_UTILS_EXPORT void	SetModifiedBasis (const bool modbasis)

SOLVER_UTILS_EXPORT int	NoCaseStringCompare (const std::string &s1, const std::string &s2)
	Perform a case-insensitive string comparison. More...

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 void	SetTime (const NekDouble time)

SOLVER_UTILS_EXPORT void	SetInitialStep (const int step)

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

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

Protected Member Functions
	CompressibleFlowSystem (const LibUtilities::SessionReaderSharedPtr &pSession)

virtual void	v_InitObject ()
	Initialization object for CompressibleFlowSystem class. More...

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

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

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

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. More...

void	DoAdvection (const Array< OneD, const 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. More...

void	DoDiffusion (const Array< OneD, const 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. More...

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

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

void	InitializeSteadyState ()

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

void	GetStdVelocity (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, NekDouble > &stdV)
	Compute the advection velocity in the standard space for each element of the expansion. More...

virtual bool	v_PostIntegrate (int step)
	Perform post-integration checks, presently just to check steady state behaviour. More...

bool	CalcSteadyState (bool output)
	Calculate whether the system has reached a steady state by observing residuals to a user-defined tolerance. More...

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

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

NekDouble	GetGamma ()

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

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

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

virtual void	v_DoDiffusion (const Array< OneD, const 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 Member Functions inherited from Nektar::SolverUtils::UnsteadySystem
SOLVER_UTILS_EXPORT	UnsteadySystem (const LibUtilities::SessionReaderSharedPtr &pSession)
	Initialises UnsteadySystem class members. More...

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

virtual SOLVER_UTILS_EXPORT void	v_DoSolve ()
	Solves an unsteady problem. More...

virtual SOLVER_UTILS_EXPORT void	v_DoInitialise ()
	Sets up initial conditions. More...

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

virtual SOLVER_UTILS_EXPORT void	v_AppendOutput1D (Array< OneD, Array< OneD, NekDouble > > &solution1D)
	Print the solution at each solution point in a txt file. More...

virtual SOLVER_UTILS_EXPORT void	v_NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numflux)

virtual SOLVER_UTILS_EXPORT void	v_NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numfluxX, Array< OneD, Array< OneD, NekDouble > > &numfluxY)

virtual SOLVER_UTILS_EXPORT void	v_NumFluxforScalar (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &uflux)

virtual SOLVER_UTILS_EXPORT void	v_NumFluxforVector (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &qfield, Array< OneD, Array< OneD, NekDouble > > &qflux)

virtual SOLVER_UTILS_EXPORT bool	v_PreIntegrate (int step)

virtual SOLVER_UTILS_EXPORT bool	v_SteadyStateCheck (int step)

virtual SOLVER_UTILS_EXPORT bool	v_RequireFwdTrans ()

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. More...

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

int	nocase_cmp (const std::string &s1, const std::string &s2)

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. More...

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. More...

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

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

virtual SOLVER_UTILS_EXPORT void	v_EvaluateExactSolution (unsigned int field, Array< OneD, NekDouble > &outfield, const NekDouble time)

SOLVER_UTILS_EXPORT void	EvaluateFunctionExp (std::string pFieldName, Array< OneD, NekDouble > &pArray, const std::string &pFunctionName, const NekDouble &pTime=0.0, const int domain=0)

SOLVER_UTILS_EXPORT void	EvaluateFunctionFld (std::string pFieldName, Array< OneD, NekDouble > &pArray, const std::string &pFunctionName, const NekDouble &pTime=0.0, const int domain=0)

SOLVER_UTILS_EXPORT void	EvaluateFunctionPts (std::string pFieldName, Array< OneD, NekDouble > &pArray, const std::string &pFunctionName, const NekDouble &pTime=0.0, const int domain=0)

SOLVER_UTILS_EXPORT void	LoadPts (std::string funcFilename, std::string filename, Nektar::LibUtilities::PtsFieldSharedPtr &outPts)

SOLVER_UTILS_EXPORT void	SetUpBaseFields (SpatialDomains::MeshGraphSharedPtr &mesh)

SOLVER_UTILS_EXPORT void	ImportFldBase (std::string pInfile, SpatialDomains::MeshGraphSharedPtr pGraph)

virtual SOLVER_UTILS_EXPORT void	v_Output (void)

virtual SOLVER_UTILS_EXPORT MultiRegions::ExpListSharedPtr	v_GetPressure (void)

Protected Attributes
SolverUtils::AdvectionSharedPtr	m_advection

SolverUtils::DiffusionSharedPtr	m_diffusion

ArtificialDiffusionSharedPtr	m_artificialDiffusion

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

NekDouble	m_gamma

NekDouble	m_pInf

NekDouble	m_rhoInf

NekDouble	m_UInf

std::string	m_ViscosityType

std::string	m_shockCaptureType

NekDouble	m_mu

NekDouble	m_thermalConductivity

NekDouble	m_Cp

NekDouble	m_Prandtl

VariableConverterSharedPtr	m_varConv

std::vector< CFSBndCondSharedPtr >	m_bndConds

std::ofstream	m_errFile

NekDouble	m_steadyStateTol

std::vector < SolverUtils::ForcingSharedPtr >	m_forcing

Array< OneD, Array< OneD, NekDouble > >	m_un

Protected Attributes inherited from Nektar::SolverUtils::UnsteadySystem
int	m_infosteps
	Number of time steps between outputting status information. More...

int	m_nanSteps

LibUtilities::TimeIntegrationWrapperSharedPtr	m_intScheme
	Wrapper to the time integration scheme. More...

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

LibUtilities::TimeIntegrationSolutionSharedPtr	m_intSoln

NekDouble	m_epsilon

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

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

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

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

std::vector< int >	m_intVariables

std::vector< FilterSharedPtr >	m_filters

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

LibUtilities::SessionReaderSharedPtr	m_session
	The session reader. More...

LibUtilities::FieldIOSharedPtr	m_fld
	Field input/output. More...

std::map< std::string, FieldUtils::Interpolator >	m_interpolators
	Map of interpolator objects. More...

std::map< std::string, std::pair< std::string, LibUtilities::PtsFieldSharedPtr > >	m_loadedPtsFields
	pts fields we already read from disk: {funcFilename: (filename, ptsfield)} More...

std::map< std::string, std::pair< std::string, loadedFldField > >	m_loadedFldFields

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

Array< OneD, MultiRegions::ExpListSharedPtr >	m_base
	Base fields. More...

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

SpatialDomains::BoundaryConditionsSharedPtr	m_boundaryConditions
	Pointer to boundary conditions object. More...

SpatialDomains::MeshGraphSharedPtr	m_graph
	Pointer to graph defining mesh. More...

std::string	m_sessionName
	Name of the session. More...

NekDouble	m_time
	Current time of simulation. More...

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

NekDouble	m_fintime
	Finish time of the simulation. More...

NekDouble	m_timestep
	Time step size. More...

NekDouble	m_lambda
	Lambda constant in real system if one required. More...

NekDouble	m_checktime
	Time between checkpoints. More...

int	m_nchk
	Number of checkpoints written so far. More...

int	m_steps
	Number of steps to take. More...

int	m_checksteps
	Number of steps between checkpoints. More...

int	m_spacedim
	Spatial dimension (>= expansion dim). More...

int	m_expdim
	Expansion dimension. More...

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

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

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

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

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

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

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

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

Array< OneD, Array< OneD, Array< OneD, NekDouble > > >	m_gradtan
	1 x nvariable x nq More...

Array< OneD, Array< OneD, Array< OneD, NekDouble > > >	m_tanbasis
	2 x m_spacedim x nq More...

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

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

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

enum HomogeneousType	m_HomogeneousType

NekDouble	m_LhomX
	physical length in X direction (if homogeneous) More...

NekDouble	m_LhomY
	physical length in Y direction (if homogeneous) More...

NekDouble	m_LhomZ
	physical length in Z direction (if homogeneous) More...

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

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

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

int	m_HomoDirec
	number of homogenous directions More...

Friends
class	MemoryManager< CompressibleFlowSystem >

Additional Inherited Members
Public Attributes inherited from Nektar::SolverUtils::UnsteadySystem
NekDouble	m_cflSafetyFactor
	CFL safety factor (comprise between 0 to 1). More...

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

Detailed Description

Definition at line 53 of file CompressibleFlowSystem.h.

Constructor & Destructor Documentation

Nektar::CompressibleFlowSystem::~CompressibleFlowSystem ( )

virtual

Destructor for CompressibleFlowSystem class.

Definition at line 129 of file CompressibleFlowSystem.cpp.

     {
 
     }

Nektar::CompressibleFlowSystem::CompressibleFlowSystem ( const LibUtilities::SessionReaderSharedPtr & pSession )

protected

Definition at line 45 of file CompressibleFlowSystem.cpp.

         : UnsteadySystem(pSession)
     {
     }

Member Function Documentation

bool Nektar::CompressibleFlowSystem::CalcSteadyState ( bool output )

protected

Calculate whether the system has reached a steady state by observing residuals to a user-defined tolerance.

Definition at line 579 of file CompressibleFlowSystem.cpp.

References Nektar::SolverUtils::EquationSystem::GetTotPoints(), Nektar::SolverUtils::EquationSystem::m_comm, m_errFile, Nektar::SolverUtils::EquationSystem::m_fields, m_gamma, m_pInf, m_rhoInf, Nektar::SolverUtils::EquationSystem::m_session, m_steadyStateTol, Nektar::SolverUtils::EquationSystem::m_time, m_UInf, m_un, Nektar::LibUtilities::ReduceSum, Vmath::Vcopy(), Vmath::Vmax(), Vmath::Vmul(), Vmath::Vsub(), and Vmath::Vsum().

Referenced by v_PostIntegrate().

     {
         const int nPoints = GetTotPoints();
         const int nFields = m_fields.num_elements();
 
         // Holds L2 errors.
         Array<OneD, NekDouble> L2      (nFields);
         Array<OneD, NekDouble> residual(nFields);
 
         for (int i = 0; i < nFields; ++i)
         {
             Array<OneD, NekDouble> diff(nPoints);
 
             Vmath::Vsub(nPoints, m_fields[i]->GetPhys(), 1, m_un[i], 1, diff, 1);
             Vmath::Vmul(nPoints, diff, 1, diff, 1, diff, 1);
             residual[i] = Vmath::Vsum(nPoints, diff, 1);
         }
 
         m_comm->AllReduce(residual, LibUtilities::ReduceSum);
 
         // L2 error
         L2[0] = sqrt(residual[0]) / m_rhoInf;
 
         for (int i = 1; i < nFields-1; ++i)
         {
             L2[i] = sqrt(residual[i]) / m_UInf / m_rhoInf;
         }
 
         NekDouble Einf = m_pInf / (m_gamma-1.0) + 0.5 * m_rhoInf * m_UInf;
         L2[nFields-1] = sqrt(residual[nFields-1]) / Einf;
 
         if (m_comm->GetRank() == 0 && output)
         {
             // Output time
             m_errFile << setprecision(8) << setw(17) << scientific << m_time;
 
             // Output residuals
             for (int i = 0; i < nFields; ++i)
             {
                 m_errFile << setprecision(11) << setw(22) << scientific
                           << L2[i];
             }
 
             m_errFile << endl;
         }
 
         // Calculate maximum L2 error
         NekDouble maxL2 = Vmath::Vmax(nFields, L2, 1);
 
         if (m_session->DefinesCmdLineArgument("verbose") &&
             m_comm->GetRank() == 0 && output)
         {
             cout << "-- Maximum L^2 residual: " << maxL2 << endl;
         }
 
         if (maxL2 <= m_steadyStateTol)
         {
             return true;
         }
 
         for (int i = 0; i < m_fields.num_elements(); ++i)
         {
             Vmath::Vcopy(nPoints, m_fields[i]->GetPhys(), 1, m_un[i], 1);
         }
 
         return false;
     }

void Nektar::CompressibleFlowSystem::DoAdvection	(	const Array< OneD, const 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 343 of file CompressibleFlowSystem.cpp.

References m_advection, Nektar::SolverUtils::EquationSystem::m_fields, and Nektar::SolverUtils::EquationSystem::m_spacedim.

Referenced by DoOdeRhs().

     {
         int nvariables = inarray.num_elements();
         Array<OneD, Array<OneD, NekDouble> > advVel(m_spacedim);
 
         m_advection->Advect(nvariables, m_fields, advVel, inarray,
                             outarray, time, pFwd, pBwd);
     }

void Nektar::CompressibleFlowSystem::DoDiffusion	(	const Array< OneD, const 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 360 of file CompressibleFlowSystem.cpp.

References m_artificialDiffusion, m_shockCaptureType, and v_DoDiffusion().

Referenced by DoOdeRhs().

     {
         v_DoDiffusion(inarray, outarray, pFwd, pBwd);
 
         if (m_shockCaptureType != "Off")
         {
             m_artificialDiffusion->DoArtificialDiffusion(inarray, outarray);
         }
     }

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 305 of file CompressibleFlowSystem.cpp.

References ASSERTL0, Nektar::MultiRegions::eDiscontinuous, Nektar::MultiRegions::eGalerkin, Nektar::MultiRegions::eMixed_CG_Discontinuous, Nektar::SolverUtils::EquationSystem::GetNpoints(), Nektar::SolverUtils::EquationSystem::m_projectionType, SetBoundaryConditions(), and Vmath::Vcopy().

Referenced by v_InitObject().

     {
         int i;
         int nvariables = inarray.num_elements();
 
         switch(m_projectionType)
         {
             case MultiRegions::eDiscontinuous:
             {
                 // Just copy over array
                 int npoints = GetNpoints();
 
                 for(i = 0; i < nvariables; ++i)
                 {
                     Vmath::Vcopy(npoints, inarray[i], 1, outarray[i], 1);
                 }
                 SetBoundaryConditions(outarray, time);
                 break;
             }
             case MultiRegions::eGalerkin:
             case MultiRegions::eMixed_CG_Discontinuous:
             {
                 ASSERTL0(false, "No Continuous Galerkin for full compressible "
                                 "Navier-Stokes equations");
                 break;
             }
             default:
                 ASSERTL0(false, "Unknown projection scheme");
                 break;
         }
     }

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 252 of file CompressibleFlowSystem.cpp.

References DoAdvection(), DoDiffusion(), Nektar::SolverUtils::EquationSystem::eHomogeneous1D, Nektar::SolverUtils::EquationSystem::GetNpoints(), Nektar::SolverUtils::EquationSystem::GetTraceTotPoints(), Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, Nektar::SolverUtils::EquationSystem::m_HomogeneousType, Vmath::Neg(), and Nektar::NullNekDoubleArrayofArray.

Referenced by v_InitObject().

     {
         int i;
         int nvariables = inarray.num_elements();
         int npoints    = GetNpoints();
         int nTracePts  = GetTraceTotPoints();
 
         // 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(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(inarray[i], Fwd[i], Bwd[i]);
             }
         }
 
         // Calculate advection
         DoAdvection(inarray, outarray, time, Fwd, Bwd);
 
         // Negate results
         for (i = 0; i < nvariables; ++i)
         {
             Vmath::Neg(npoints, outarray[i], 1);
         }
 
         // Add diffusion terms
         DoDiffusion(inarray, outarray, Fwd, Bwd);
 
         // Add forcing terms
         std::vector<SolverUtils::ForcingSharedPtr>::const_iterator x;
         for (x = m_forcing.begin(); x != m_forcing.end(); ++x)
         {
             (*x)->Apply(m_fields, inarray, outarray, time);
         }
     }

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

protected

Return the flux vector for the compressible Euler equations.

Parameters

physfield	Fields.
flux	Resulting flux.

Definition at line 405 of file CompressibleFlowSystem.cpp.

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

Referenced by InitAdvection().

     {
         int i, j;
         int nq = physfield[0].num_elements();
         int nVariables = m_fields.num_elements();
 
         Array<OneD, NekDouble> pressure(nq);
         Array<OneD, Array<OneD, NekDouble> > velocity(m_spacedim);
 
         // Flux vector for the rho equation
         for (i = 0; i < m_spacedim; ++i)
         {
             velocity[i] = Array<OneD, NekDouble>(nq);
             Vmath::Vcopy(nq, physfield[i+1], 1, flux[0][i], 1);
         }
 
         m_varConv->GetVelocityVector(physfield, velocity);
         m_varConv->GetPressure(physfield, velocity, pressure);
 
         // 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[i+1], 1,
                             flux[i+1][j], 1);
             }
 
             // Add pressure to appropriate field
             Vmath::Vadd(nq, flux[i+1][i], 1, pressure, 1, flux[i+1][i], 1);
         }
 
         // Flux vector for energy.
         Vmath::Vadd(nq, physfield[m_spacedim+1], 1, pressure, 1,
                     pressure, 1);
 
         for (j = 0; j < m_spacedim; ++j)
         {
             Vmath::Vmul(nq, velocity[j], 1, pressure, 1,
                         flux[m_spacedim+1][j], 1);
         }
 
         // For the smooth viscosity model
         if (nVariables == m_spacedim+3)
         {
             // Add a zero row for the advective fluxes
             for (j = 0; j < m_spacedim; ++j)
             {
                 Vmath::Zero(nq, flux[m_spacedim+2][j], 1);
             }
         }
     }

void Nektar::CompressibleFlowSystem::GetFluxVectorDeAlias	(	const Array< OneD, Array< OneD, NekDouble > > &	physfield,
		Array< OneD, Array< OneD, Array< OneD, 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 467 of file CompressibleFlowSystem.cpp.

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

Referenced by InitAdvection().

     {
         int i, j;
         int nq = physfield[0].num_elements();
         int nVariables = m_fields.num_elements();
 
         // 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);
         Array<OneD, Array<OneD, Array<OneD, NekDouble> > > flux_interp(
                                                             nVariables);
 
         for (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, velocity, 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 origianl 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 origianl space
             m_fields[0]->PhysGalerkinProjection1DScaled(
                 OneDptscale,
                 flux_interp[m_spacedim+1][j],
                 flux[m_spacedim+1][j]);
         }
     }

NekDouble Nektar::CompressibleFlowSystem::GetGamma ( )

inlineprotected

Definition at line 161 of file CompressibleFlowSystem.h.

References m_gamma.

Referenced by InitAdvection().

         {
             return m_gamma;
         }

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

inlineprotected

Definition at line 171 of file CompressibleFlowSystem.h.

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

Referenced by InitAdvection().

         {
             return m_traceNormals;
         }

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 870 of file CompressibleFlowSystem.cpp.

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

Referenced by GetStabilityLimitVector().

     {
         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
         {
             ASSERTL0(false, "Continuous Galerkin stability coefficients "
                             "not introduced yet.");
         }
 
         return CFL;
     }

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 903 of file CompressibleFlowSystem.cpp.

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

     {
         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;
     }

void Nektar::CompressibleFlowSystem::GetStdVelocity	(	const Array< OneD, const Array< OneD, NekDouble > > &	inarray,
		Array< OneD, NekDouble > &	stdV
	)

protected

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

Parameters

inarray	Momentum field.
stdV	Standard velocity field.

Definition at line 777 of file CompressibleFlowSystem.cpp.

References Nektar::SpatialDomains::eDeformed, Nektar::SolverUtils::EquationSystem::GetTotPoints(), Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_spacedim, m_varConv, Vmath::Smul(), Vmath::Svtvp(), Vmath::Vmul(), Vmath::Vvtvp(), and Vmath::Zero().

Referenced by v_GetTimeStep().

     {
         int nTotQuadPoints = GetTotPoints();
         int n_element      = m_fields[0]->GetExpSize();
         int nBCEdgePts           = 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, NekDouble>               pressure   (nTotQuadPoints);
         Array<OneD, NekDouble>               soundspeed (nTotQuadPoints);
         LibUtilities::PointsKeyVector        ptsKeys;
 
         // Zero output array
         Vmath::Zero(stdV.num_elements(), stdV, 1);
 
         for (int i = 0; i < m_spacedim; ++i)
         {
             velocity   [i] = Array<OneD, NekDouble>(nTotQuadPoints);
             stdVelocity[i] = Array<OneD, NekDouble>(nTotQuadPoints, 0.0);
         }
 
         m_varConv->GetVelocityVector(inarray, velocity);
         m_varConv->GetPressure      (inarray, velocity, pressure);
         m_varConv->GetSoundSpeed    (inarray, pressure, soundspeed);
 
         for(int el = 0; el < n_element; ++el)
         {
             ptsKeys = m_fields[0]->GetExp(el)->GetPointsKeys();
 
             // Possible bug: not multiply by jacobian??
             const SpatialDomains::GeomFactorsSharedPtr metricInfo =
                 m_fields[0]->GetExp(el)->GetGeom()->GetMetricInfo();
             const Array<TwoD, const NekDouble> &gmat =
                 m_fields[0]->GetExp(el)->GetGeom()->GetMetricInfo()
                                                   ->GetDerivFactors(ptsKeys);
 
             int nq = m_fields[0]->GetExp(el)->GetTotPoints();
 
             if(metricInfo->GetGtype() == SpatialDomains::eDeformed)
             {
                 // d xi/ dx = gmat = 1/J * d x/d xi
                 for (int i = 0; i < m_spacedim; ++i)
                 {
                     Vmath::Vmul(nq, gmat[i], 1, velocity[0], 1,
                                 stdVelocity[i], 1);
                     for (int j = 1; j < m_spacedim; ++j)
                     {
                         Vmath::Vvtvp(nq, gmat[m_spacedim*j+i], 1, velocity[j],
                                      1, stdVelocity[i], 1, stdVelocity[i], 1);
                     }
                 }
             }
             else
             {
                 for (int i = 0; i < m_spacedim; ++i)
                 {
                     Vmath::Smul(nq, gmat[i][0], velocity[0], 1,
                                 stdVelocity[i], 1);
                     for (int j = 1; j < m_spacedim; ++j)
                     {
                         Vmath::Svtvp(nq, gmat[m_spacedim*j+i][0], velocity[j],
                                      1, stdVelocity[i], 1, stdVelocity[i], 1);
                     }
                 }
             }
 
             for (int i = 0; i < nq; ++i)
             {
                 NekDouble pntVelocity = 0.0;
                 for (int j = 0; j < m_spacedim; ++j)
                 {
                     pntVelocity += stdVelocity[j][i]*stdVelocity[j][i];
                 }
                 pntVelocity = sqrt(pntVelocity) + soundspeed[nBCEdgePts];
                 if (pntVelocity > stdV[el])
                 {
                     stdV[el] = pntVelocity;
                 }
                 nBCEdgePts++;
             }
         }
     }

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

inlineprotected

Definition at line 166 of file CompressibleFlowSystem.h.

References m_vecLocs.

Referenced by InitAdvection().

         {
             return m_vecLocs;
         }

void Nektar::CompressibleFlowSystem::InitAdvection ( )

protected

Create advection and diffusion objects for CFS.

Definition at line 206 of file CompressibleFlowSystem.cpp.

References ASSERTL0, Nektar::LibUtilities::NekFactory< tKey, tBase, >::CreateInstance(), Nektar::MultiRegions::eDiscontinuous, Nektar::SolverUtils::GetAdvectionFactory(), GetFluxVector(), GetFluxVectorDeAlias(), GetGamma(), GetNormals(), Nektar::SolverUtils::GetRiemannSolverFactory(), GetVecLocs(), m_advection, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_projectionType, Nektar::SolverUtils::EquationSystem::m_session, and Nektar::SolverUtils::EquationSystem::m_specHP_dealiasing.

Referenced by v_InitObject().

     {
         // Check if projection type is correct
         ASSERTL0(m_projectionType == MultiRegions::eDiscontinuous,
                 "Unsupported projection type.");
 
         string advName, riemName;
         m_session->LoadSolverInfo("AdvectionType", advName, "WeakDG");
 
         m_advection = SolverUtils::GetAdvectionFactory()
                                     .CreateInstance(advName, advName);
 
         if (m_specHP_dealiasing)
         {
             m_advection->SetFluxVector(&CompressibleFlowSystem::
                                        GetFluxVectorDeAlias, this);
         }
         else
         {
             m_advection->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);
 
         // 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_advection->SetRiemannSolver   (riemannSolver);
         m_advection->InitObject         (m_session, m_fields);
     }

void Nektar::CompressibleFlowSystem::InitialiseParameters ( )

protected

Load CFS parameters from the session file.

Definition at line 137 of file CompressibleFlowSystem.cpp.

References ASSERTL0, m_Cp, m_gamma, m_mu, m_pInf, m_Prandtl, m_rhoInf, Nektar::SolverUtils::EquationSystem::m_session, m_shockCaptureType, Nektar::SolverUtils::EquationSystem::m_spacedim, m_steadyStateTol, m_thermalConductivity, m_UInf, and m_ViscosityType.

Referenced by v_InitObject().

     {
         NekDouble velInf, gasConstant;
 
         // Get gamma parameter from session file.
         m_session->LoadParameter("Gamma", m_gamma, 1.4);
 
         // Get gas constant from session file and compute Cp
         m_session->LoadParameter ("GasConstant",   gasConstant,   287.058);
         m_Cp      = m_gamma / (m_gamma - 1.0) * gasConstant;
 
         // Get pInf parameter from session file.
         m_session->LoadParameter("pInf", m_pInf, 101325);
 
         // Get rhoInf parameter from session file.
         m_session->LoadParameter("rhoInf", m_rhoInf, 1.225);
 
         // Get uInf parameter from session file.
         m_session->LoadParameter("uInf", velInf, 0.1);
 
         m_UInf = velInf*velInf;
 
         // Get vInf parameter from session file.
         if (m_spacedim == 2 || m_spacedim == 3)
         {
             m_session->LoadParameter("vInf", velInf, 0.0);
             m_UInf += velInf*velInf;
         }
 
         // Get wInf parameter from session file.
         if (m_spacedim == 3)
         {
             m_session->LoadParameter("wInf", velInf, 0.0);
             m_UInf += velInf*velInf;
         }
         m_UInf = sqrt(m_UInf);
 
         // Viscosity
         m_session->LoadSolverInfo("ViscosityType", m_ViscosityType, "Constant");
         m_session->LoadParameter ("mu",            m_mu,            1.78e-05);
 
         // Thermal conductivity or Prandtl
         if( m_session->DefinesParameter("thermalConductivity"))
         {
             ASSERTL0( !m_session->DefinesParameter("Pr"),
                  "Cannot define both Pr and thermalConductivity.");
 
             m_session->LoadParameter ("thermalConductivity",
                                         m_thermalConductivity);
             m_Prandtl = m_Cp * m_mu / m_thermalConductivity;
         }
         else
         {
             m_session->LoadParameter ("Pr",
                                         m_Prandtl, 0.72);
             m_thermalConductivity = m_Cp * m_mu / m_Prandtl;
         }
 
         // Steady state tolerance
         m_session->LoadParameter("SteadyStateTol", m_steadyStateTol, 0.0);
 
         // Shock capture
         m_session->LoadSolverInfo("ShockCaptureType",
                                   m_shockCaptureType,    "Off");
     }

void Nektar::CompressibleFlowSystem::InitializeSteadyState ( )

protected

Definition at line 734 of file CompressibleFlowSystem.cpp.

References Nektar::SolverUtils::EquationSystem::m_comm, m_errFile, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, m_un, and Vmath::Vcopy().

Referenced by Nektar::IsentropicVortex::v_SetInitialConditions(), and v_SetInitialConditions().

     {
         if (m_session->DefinesParameter("SteadyStateTol"))
         {
             const int nPoints = m_fields[0]->GetTotPoints();
             m_un = Array<OneD, Array<OneD, NekDouble> > (
                 m_fields.num_elements());
 
             for (int i = 0; i < m_fields.num_elements(); ++i)
             {
                 m_un[i] = Array<OneD, NekDouble>(nPoints);
                 Vmath::Vcopy(nPoints, m_fields[i]->GetPhys(), 1, m_un[i], 1);
             }
 
             if (m_comm->GetRank() == 0)
             {
                 std::string fName = m_session->GetSessionName() +
                     std::string(".res");
                 m_errFile.open(fName.c_str());
                 m_errFile << "# "
                           << setw(15) << left << "Time"
                           << setw(22) << left << "rho";
 
                 std::string velFields[3] = {"u", "v", "w"};
 
                 for (int i = 0; i < m_fields.num_elements()-2; ++i)
                 {
                     m_errFile << setw(22) << "rho"+velFields[i];
                 }
 
                 m_errFile << setw(22) << left << "E" << endl;
             }
         }
     }

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

protected

Definition at line 374 of file CompressibleFlowSystem.cpp.

References Nektar::SolverUtils::EquationSystem::GetTraceTotPoints(), Nektar::iterator, m_bndConds, and Nektar::SolverUtils::EquationSystem::m_fields.

Referenced by DoOdeProjection().

     {
         int nTracePts  = GetTraceTotPoints();
         int nvariables = physarray.num_elements();
 
         Array<OneD, Array<OneD, NekDouble> > Fwd(nvariables);
         for (int i = 0; i < nvariables; ++i)
         {
             Fwd[i] = Array<OneD, NekDouble>(nTracePts);
             m_fields[i]->ExtractTracePhys(physarray[i], Fwd[i]);
         }
 
         if (m_bndConds.size())
         {
             // Loop over user-defined boundary conditions
             std::vector<CFSBndCondSharedPtr>::iterator x;
             for (x = m_bndConds.begin(); x != m_bndConds.end(); ++x)
             {
                 (*x)->Apply(Fwd, physarray, time);
             }
         }
     }

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

inlineprotectedvirtual

Reimplemented in Nektar::NavierStokesCFE.

Definition at line 180 of file CompressibleFlowSystem.h.

Referenced by DoDiffusion().

         {
             // Do nothing by default
         }

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

protectedvirtual

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 915 of file CompressibleFlowSystem.cpp.

References m_artificialDiffusion, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, and m_varConv.

     {
         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.num_elements());
 
             for (int i = 0; i < m_fields.num_elements(); ++i)
             {
                 tmp[i] = m_fields[i]->GetPhys();
             }
 
             Array<OneD, NekDouble> pressure(nPhys), soundspeed(nPhys), mach(nPhys);
             Array<OneD, NekDouble> sensor(nPhys), SensorKappa(nPhys);
 
             m_varConv->GetPressure  (tmp, pressure);
             m_varConv->GetSoundSpeed(tmp, pressure, soundspeed);
             m_varConv->GetMach      (tmp, soundspeed, mach);
             m_varConv->GetSensor    (m_fields[0], tmp, sensor, SensorKappa);
 
             Array<OneD, NekDouble> pFwd(nCoeffs), sFwd(nCoeffs), mFwd(nCoeffs);
             Array<OneD, NekDouble> sensFwd(nCoeffs);
 
             m_fields[0]->FwdTrans_IterPerExp(pressure,   pFwd);
             m_fields[0]->FwdTrans_IterPerExp(soundspeed, sFwd);
             m_fields[0]->FwdTrans_IterPerExp(mach,       mFwd);
             m_fields[0]->FwdTrans_IterPerExp(sensor,     sensFwd);
 
             variables.push_back  ("p");
             variables.push_back  ("a");
             variables.push_back  ("Mach");
             variables.push_back  ("Sensor");
             fieldcoeffs.push_back(pFwd);
             fieldcoeffs.push_back(sFwd);
             fieldcoeffs.push_back(mFwd);
             fieldcoeffs.push_back(sensFwd);
 
             if (m_artificialDiffusion)
             {
                 // reuse pressure
                 m_artificialDiffusion->GetArtificialViscosity(tmp, pressure);
                 m_fields[0]->FwdTrans_IterPerExp(pressure,   pFwd);
 
                 variables.push_back  ("ArtificialVisc");
                 fieldcoeffs.push_back(pFwd);
             }
         }
     }

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

protectedvirtual

Calculate the maximum timestep subject to CFL restrictions.

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 650 of file CompressibleFlowSystem.cpp.

References Nektar::SolverUtils::EquationSystem::GetNumExpModesPerExp(), GetStdVelocity(), Nektar::SolverUtils::UnsteadySystem::m_cflSafetyFactor, Nektar::SolverUtils::EquationSystem::m_comm, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::UnsteadySystem::MaxTimeStepEstimator(), Nektar::LibUtilities::ReduceMin, and Vmath::Vmin().

     {
         int n;
         int nElements = m_fields[0]->GetExpSize();
         const Array<OneD, int> ExpOrder = GetNumExpModesPerExp();
 
         Array<OneD, NekDouble> tstep      (nElements, 0.0);
         Array<OneD, NekDouble> stdVelocity(nElements);
 
         // Get standard velocity to compute the time-step limit
         GetStdVelocity(inarray, stdVelocity);
 
         // Factors to compute the time-step limit
         NekDouble minLength = 0.0;
         NekDouble alpha     = MaxTimeStepEstimator();
         NekDouble cLambda   = 0.2; // Spencer book-317
 
         // Loop over elements to compute the time-step limit for each element
         for(n = 0; n < nElements; ++n)
         {
             int npoints = m_fields[0]->GetExp(n)->GetTotPoints();
             Array<OneD, NekDouble> one2D(npoints, 1.0);
             NekDouble Area = m_fields[0]->GetExp(n)->Integral(one2D);
 
             minLength = sqrt(Area);
             if (m_fields[0]->GetExp(n)->as<LocalRegions::TriExp>())
             {
                 minLength *= 2.0;
             }
 
             tstep[n] = m_cflSafetyFactor * alpha * minLength
                      / (stdVelocity[n] * cLambda
                         * (ExpOrder[n] - 1) * (ExpOrder[n] - 1));
         }
 
         // Get the minimum time-step limit and return the time-step
         NekDouble TimeStep = Vmath::Vmin(nElements, tstep, 1);
         m_comm->AllReduce(TimeStep, LibUtilities::ReduceMin);
         return TimeStep;
     }

void Nektar::CompressibleFlowSystem::v_InitObject ( )

protectedvirtual

Initialization object for CompressibleFlowSystem class.

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Reimplemented in Nektar::NavierStokesCFE.

Definition at line 54 of file CompressibleFlowSystem.cpp.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), ASSERTL0, Nektar::LibUtilities::NekFactory< tKey, tBase, >::CreateInstance(), Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineOdeRhs(), Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineProjection(), DoOdeProjection(), DoOdeRhs(), Nektar::GetArtificialDiffusionFactory(), Nektar::GetCFSBndCondFactory(), InitAdvection(), InitialiseParameters(), Nektar::SolverUtils::Forcing::Load(), m_artificialDiffusion, m_bndConds, Nektar::SolverUtils::UnsteadySystem::m_explicitAdvection, Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, Nektar::SolverUtils::UnsteadySystem::m_homoInitialFwd, Nektar::SolverUtils::UnsteadySystem::m_ode, Nektar::SolverUtils::EquationSystem::m_session, m_shockCaptureType, Nektar::SolverUtils::EquationSystem::m_spacedim, Nektar::SolverUtils::EquationSystem::m_traceNormals, m_varConv, m_vecLocs, and Nektar::SolverUtils::UnsteadySystem::v_InitObject().

Referenced by Nektar::NavierStokesCFE::v_InitObject().

     {
         UnsteadySystem::v_InitObject();
 
         m_varConv = MemoryManager<VariableConverter>::AllocateSharedPtr(
                     m_session, m_spacedim);
 
         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
         if (m_shockCaptureType != "Off")
         {
             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, m_fields,
                                                m_fields.num_elements());
 
         // User-defined boundary conditions
         int cnt = 0;
         for (int n = 0; n < m_fields[0]->GetBndConditions().num_elements(); ++n)
         {
             std::string type = 
                     m_fields[0]->GetBndConditions()[n]->GetUserDefined();
             if(!type.empty())
             {
                 m_bndConds.push_back(GetCFSBndCondFactory().CreateInstance(
                         type,
                         m_session,
                         m_fields,
                         m_traceNormals,
                         m_spacedim,
                         n,
                         cnt));
             }
             cnt += m_fields[0]->GetBndCondExpansions()[n]->GetExpSize();
         }
 
         if (m_explicitAdvection)
         {
             m_ode.DefineOdeRhs    (&CompressibleFlowSystem::DoOdeRhs, this);
             m_ode.DefineProjection(&CompressibleFlowSystem::DoOdeProjection, this);
         }
         else
         {
             ASSERTL0(false, "Implicit CFS not set up.");
         }
     }

bool Nektar::CompressibleFlowSystem::v_PostIntegrate ( int step )

protectedvirtual

Perform post-integration checks, presently just to check steady state behaviour.

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 557 of file CompressibleFlowSystem.cpp.

References CalcSteadyState(), Nektar::SolverUtils::EquationSystem::m_comm, Nektar::SolverUtils::UnsteadySystem::m_infosteps, and m_steadyStateTol.

     {
         if (m_steadyStateTol > 0.0)
         {
             bool doOutput = step % m_infosteps == 0;
             if (CalcSteadyState(doOutput))
             {
                 if (m_comm->GetRank() == 0)
                 {
                     cout << "Reached Steady State to tolerance "
                          << m_steadyStateTol << endl;
                 }
                 return true;
             }
         }
         return false;
     }

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

protectedvirtual

Set up logic for residual calculation.

Reimplemented from Nektar::SolverUtils::EquationSystem.

Reimplemented in Nektar::IsentropicVortex.

Definition at line 695 of file CompressibleFlowSystem.cpp.

References Nektar::SolverUtils::EquationSystem::Checkpoint_Output(), Vmath::FillWhiteNoise(), InitializeSteadyState(), Nektar::SolverUtils::EquationSystem::m_comm, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, Nektar::SolverUtils::EquationSystem::v_SetInitialConditions(), and Vmath::Vadd().

     {
         EquationSystem::v_SetInitialConditions(initialtime, false);
 
         // 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.num_elements();
 
         if (Noise > 0.0)
         {
             int seed = - m_comm->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]->FwdTrans_IterPerExp(m_fields[i]->GetPhys(),
                                                  m_fields[i]->UpdateCoeffs());
             }
         }
 
         InitializeSteadyState();
 
         if (dumpInitialConditions)
         {
             // Dump initial conditions to file
             Checkpoint_Output(0);
         }
     }