This class is the base class for Navier Stokes problems. More...

#include <IncNavierStokes.h>

Inheritance diagram for Nektar::IncNavierStokes:

Public Member Functions
int	GetNConvectiveFields (void)

void	AddForcing (const SolverUtils::ForcingSharedPtr &pForce)

bool	DefinedForcing (const std::string &sForce)

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

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

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
	IncNavierStokes (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)
	Constructor.

	~IncNavierStokes () override=default

void	v_InitObject (bool DeclareField=true) override
	Initialisation object for EquationSystem.

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_SetMovingFrameVelocities (const Array< OneD, NekDouble > &vFrameVels) override

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

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

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

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

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

void	v_SetAeroForce (Array< OneD, NekDouble > forces) override

void	v_GetAeroForce (Array< OneD, NekDouble > forces) override

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

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

void	EvaluateAdvectionTerms (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)

void	WriteModalEnergy (void)

void	SetBoundaryConditions (NekDouble time)
	time dependent boundary conditions updating

void	SetRadiationBoundaryForcing (int fieldid)
	Set Radiation forcing term.

void	SetZeroNormalVelocity ()
	Set Normal Velocity Component to Zero.

void	SetWomersleyBoundary (const int fldid, const int bndid)
	Set Womersley Profile if specified.

void	SetUpWomersley (const int fldid, const int bndid, std::string womstr)
	Set Up Womersley details.

MultiRegions::ExpListSharedPtr	v_GetPressure () override

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

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

virtual int	v_GetForceDimension ()=0

Array< OneD, NekDouble >	v_GetMaxStdVelocity (const NekDouble SpeedSoundFactor) override

bool	v_PreIntegrate (int step) override

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 NekDouble	v_GetTimeStep (const Array< OneD, const Array< OneD, NekDouble > > &inarray)
	Return the timestep to be used for the next step in the time-marching loop.

virtual SOLVER_UTILS_EXPORT bool	v_RequireFwdTrans ()

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

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_SetInitialConditions (NekDouble initialtime=0.0, bool dumpInitialConditions=true, const int domain=0)

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

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.

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

Protected Attributes
ExtrapolateSharedPtr	m_extrapolation

IncBoundaryConditionsSharedPtr	m_IncNavierStokesBCs

std::ofstream	m_mdlFile
	modal energy file

bool	m_SmoothAdvection
	bool to identify if advection term smoothing is requested

std::vector< SolverUtils::ForcingSharedPtr >	m_forcing
	Forcing terms.

int	m_nConvectiveFields
	Number of fields to be convected;.

Array< OneD, int >	m_velocity
	int which identifies which components of m_fields contains the velocity (u,v,w);

MultiRegions::ExpListSharedPtr	m_pressure
	Pointer to field holding pressure field.

NekDouble	m_kinvis
	Kinematic viscosity.

int	m_energysteps
	dump energy to file at steps time

EquationType	m_equationType
	equation type;

Array< OneD, Array< OneD, int > >	m_fieldsBCToElmtID
	Mapping from BCs to Elmt IDs.

Array< OneD, Array< OneD, int > >	m_fieldsBCToTraceID
	Mapping from BCs to Elmt Edge IDs.

Array< OneD, Array< OneD, NekDouble > >	m_fieldsRadiationFactor
	RHS Factor for Radiation Condition.

int	m_intSteps
	Number of time integration steps AND Order of extrapolation for pressure boundary conditions.

Array< OneD, NekDouble >	m_pivotPoint
	pivot point for moving reference frame

Array< OneD, NekDouble >	m_aeroForces

std::map< int, std::map< int, WomersleyParamsSharedPtr > >	m_womersleyParams
	Womersley parameters if required.

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

Static Protected Attributes
static std::string	eqTypeLookupIds []

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

static std::string	projectionTypeLookupIds []

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...

Detailed Description

This class is the base class for Navier Stokes problems.

Definition at line 148 of file IncNavierStokes.h.

Constructor & Destructor Documentation

◆ IncNavierStokes()

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

protected

Constructor.

Constructor. Creates ...

Parameters

param

Definition at line 81 of file IncNavierStokes.cpp.

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

◆ ~IncNavierStokes()

Nektar::IncNavierStokes::~IncNavierStokes ( )

overrideprotecteddefault

Member Function Documentation

◆ AddForcing()

void Nektar::IncNavierStokes::AddForcing ( const SolverUtils::ForcingSharedPtr & pForce )

Add an additional forcing term programmatically.

Definition at line 812 of file IncNavierStokes.cpp.

{
    m_forcing.push_back(pForce);
}

References m_forcing.

Referenced by Nektar::VortexWaveInteraction::ExecuteRoll().

◆ DefinedForcing()

bool Nektar::IncNavierStokes::DefinedForcing ( const std::string & sForce )

Function to check the type of forcing

Definition at line 1020 of file IncNavierStokes.cpp.

{
    std::vector<std::string> vForceList;
    bool hasForce{false};
 
    if (!m_session->DefinesElement("Nektar/Forcing"))
    {
        return hasForce;
    }
 
    TiXmlElement *vForcing = m_session->GetElement("Nektar/Forcing");
    if (vForcing)
    {
        TiXmlElement *vForce = vForcing->FirstChildElement("FORCE");
        while (vForce)
        {
            std::string vType = vForce->Attribute("TYPE");
 
            vForceList.push_back(vType);
            vForce = vForce->NextSiblingElement("FORCE");
        }
    }
 
    for (auto &f : vForceList)
    {
        if (boost::iequals(f, sForce))
        {
            hasForce = true;
        }
    }
 
    return hasForce;
}

References Nektar::SolverUtils::EquationSystem::m_session.

Referenced by v_InitObject().

◆ EvaluateAdvectionTerms()

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

protected

Evaluation -N(V) for all fields except pressure using m_velocity

Definition at line 309 of file IncNavierStokes.cpp.

{
    size_t VelDim = m_velocity.size();
    Array<OneD, Array<OneD, NekDouble>> velocity(VelDim);
 
    size_t npoints = m_fields[0]->GetNpoints();
    for (size_t i = 0; i < VelDim; ++i)
    {
        velocity[i] = Array<OneD, NekDouble>(npoints);
        Vmath::Vcopy(npoints, inarray[m_velocity[i]], 1, velocity[i], 1);
    }
    for (auto &x : m_forcing)
    {
        x->PreApply(m_fields, velocity, velocity, time);
    }
 
    m_advObject->Advect(m_nConvectiveFields, m_fields, velocity, inarray,
                        outarray, time);
}

References Nektar::SolverUtils::AdvectionSystem::m_advObject, Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, m_nConvectiveFields, m_velocity, and Vmath::Vcopy().

Referenced by Nektar::CoupledLinearNS::EvaluateAdvection(), Nektar::CoupledLinearNS::EvaluateNewtonRHS(), Nektar::VelocityCorrectionScheme::v_EvaluateAdvection_SetPressureBCs(), Nektar::VCSMapping::v_EvaluateAdvection_SetPressureBCs(), and Nektar::VCSImplicit::v_EvaluateAdvection_SetPressureBCs().

◆ GetNConvectiveFields()

int Nektar::IncNavierStokes::GetNConvectiveFields ( void )

inline

Definition at line 152 of file IncNavierStokes.h.

    {
        return m_nConvectiveFields;
    }

References m_nConvectiveFields.

◆ SetBoundaryConditions()

void Nektar::IncNavierStokes::SetBoundaryConditions ( NekDouble time )

protected

time dependent boundary conditions updating

Time dependent boundary conditions updating

Definition at line 334 of file IncNavierStokes.cpp.

{
    size_t i, n;
    std::string varName;
    size_t nvariables = m_fields.size();
 
    for (i = 0; i < nvariables; ++i)
    {
        for (n = 0; n < m_fields[i]->GetBndConditions().size(); ++n)
        {
            if (m_fields[i]->GetBndConditions()[n]->IsTimeDependent())
            {
                varName = m_session->GetVariable(i);
                m_fields[i]->EvaluateBoundaryConditions(time, varName);
            }
            else if (boost::istarts_with(
                         m_fields[i]->GetBndConditions()[n]->GetUserDefined(),
                         "Womersley"))
            {
                SetWomersleyBoundary(i, n);
            }
        }
 
        // Set Radiation conditions if required
        SetRadiationBoundaryForcing(i);
    }
 
    // Enforcing the boundary conditions (Inlet and wall) for the
    // Moving reference frame
    SetZeroNormalVelocity();
}

References Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, SetRadiationBoundaryForcing(), SetWomersleyBoundary(), and SetZeroNormalVelocity().

Referenced by Nektar::VelocityCorrectionScheme::v_DoInitialise(), and v_PreIntegrate().

◆ SetRadiationBoundaryForcing()

void Nektar::IncNavierStokes::SetRadiationBoundaryForcing ( int fieldid )

protected

Set Radiation forcing term.

Probably should be pushed back into ContField?

Definition at line 369 of file IncNavierStokes.cpp.

{
    size_t i, n;
 
    Array<OneD, const SpatialDomains::BoundaryConditionShPtr> BndConds;
    Array<OneD, MultiRegions::ExpListSharedPtr> BndExp;
 
    BndConds = m_fields[fieldid]->GetBndConditions();
    BndExp   = m_fields[fieldid]->GetBndCondExpansions();
 
    LocalRegions::ExpansionSharedPtr elmt;
    StdRegions::StdExpansionSharedPtr Bc;
 
    size_t cnt;
    size_t elmtid, nq, offset, boundary;
    Array<OneD, NekDouble> Bvals, U;
    size_t cnt1 = 0;
 
    for (cnt = n = 0; n < BndConds.size(); ++n)
    {
        std::string type = BndConds[n]->GetUserDefined();
 
        if ((BndConds[n]->GetBoundaryConditionType() ==
             SpatialDomains::eRobin) &&
            (boost::iequals(type, "Radiation")))
        {
            size_t nExp = BndExp[n]->GetExpSize();
            for (i = 0; i < nExp; ++i, cnt++)
            {
                elmtid = m_fieldsBCToElmtID[m_velocity[fieldid]][cnt];
                elmt   = m_fields[fieldid]->GetExp(elmtid);
                offset = m_fields[fieldid]->GetPhys_Offset(elmtid);
 
                U  = m_fields[fieldid]->UpdatePhys() + offset;
                Bc = BndExp[n]->GetExp(i);
 
                boundary = m_fieldsBCToTraceID[fieldid][cnt];
 
                // Get edge values and put into ubc
                nq = Bc->GetTotPoints();
                Array<OneD, NekDouble> ubc(nq);
                elmt->GetTracePhysVals(boundary, Bc, U, ubc);
 
                Vmath::Vmul(nq,
                            &m_fieldsRadiationFactor
                                [fieldid][cnt1 + BndExp[n]->GetPhys_Offset(i)],
                            1, &ubc[0], 1, &ubc[0], 1);
 
                Bvals =
                    BndExp[n]->UpdateCoeffs() + BndExp[n]->GetCoeff_Offset(i);
 
                Bc->IProductWRTBase(ubc, Bvals);
            }
            cnt1 += BndExp[n]->GetTotPoints();
        }
        else
        {
            cnt += BndExp[n]->GetExpSize();
        }
    }
}

References Nektar::SpatialDomains::eRobin, Nektar::SolverUtils::EquationSystem::GetPhys_Offset(), Nektar::SolverUtils::EquationSystem::m_fields, m_fieldsBCToElmtID, m_fieldsBCToTraceID, m_fieldsRadiationFactor, m_velocity, and Vmath::Vmul().

Referenced by SetBoundaryConditions().

◆ SetUpWomersley()

void Nektar::IncNavierStokes::SetUpWomersley	(	const int	fldid,
		const int	bndid,
		std::string	womstr
	)

protected

Set Up Womersley details.

Error value returned by TinyXML.

Definition at line 588 of file IncNavierStokes.cpp.

{
    std::string::size_type indxBeg = womStr.find_first_of(':') + 1;
    std::string filename           = womStr.substr(indxBeg, std::string::npos);
 
    TiXmlDocument doc(filename);
 
    bool loadOkay = doc.LoadFile();
    ASSERTL0(loadOkay,
             (std::string("Failed to load file: ") + filename).c_str());
 
    TiXmlHandle docHandle(&doc);
 
    int err; /// Error value returned by TinyXML.
 
    TiXmlElement *nektar = doc.FirstChildElement("NEKTAR");
    ASSERTL0(nektar, "Unable to find NEKTAR tag in file.");
 
    TiXmlElement *wombc = nektar->FirstChildElement("WOMERSLEYBC");
    ASSERTL0(wombc, "Unable to find WOMERSLEYBC tag in file.");
 
    // read womersley parameters
    TiXmlElement *womparam = wombc->FirstChildElement("WOMPARAMS");
    ASSERTL0(womparam, "Unable to find WOMPARAMS tag in file.");
 
    // Input coefficients
    TiXmlElement *params = womparam->FirstChildElement("W");
    std::map<std::string, std::string> Wparams;
 
    // read parameter list
    while (params)
    {
 
        std::string propstr;
        propstr = params->Attribute("PROPERTY");
 
        ASSERTL0(!propstr.empty(),
                 "Failed to read PROPERTY value Womersley BC Parameter");
 
        std::string valstr;
        valstr = params->Attribute("VALUE");
 
        ASSERTL0(!valstr.empty(),
                 "Failed to read VALUE value Womersley BC Parameter");
 
        std::transform(propstr.begin(), propstr.end(), propstr.begin(),
                       ::toupper);
        Wparams[propstr] = valstr;
 
        params = params->NextSiblingElement("W");
    }
    bool parseGood;
 
    // Read parameters
 
    ASSERTL0(
        Wparams.count("RADIUS") == 1,
        "Failed to find Radius parameter in Womersley boundary conditions");
    std::vector<NekDouble> rad;
    ParseUtils::GenerateVector(Wparams["RADIUS"], rad);
    m_womersleyParams[fldid][bndid]->m_radius = rad[0];
 
    ASSERTL0(
        Wparams.count("PERIOD") == 1,
        "Failed to find period parameter in Womersley boundary conditions");
    std::vector<NekDouble> period;
    parseGood = ParseUtils::GenerateVector(Wparams["PERIOD"], period);
    m_womersleyParams[fldid][bndid]->m_period = period[0];
 
    ASSERTL0(
        Wparams.count("AXISNORMAL") == 1,
        "Failed to find axisnormal parameter in Womersley boundary conditions");
    std::vector<NekDouble> anorm;
    parseGood = ParseUtils::GenerateVector(Wparams["AXISNORMAL"], anorm);
    m_womersleyParams[fldid][bndid]->m_axisnormal[0] = anorm[0];
    m_womersleyParams[fldid][bndid]->m_axisnormal[1] = anorm[1];
    m_womersleyParams[fldid][bndid]->m_axisnormal[2] = anorm[2];
 
    ASSERTL0(
        Wparams.count("AXISPOINT") == 1,
        "Failed to find axispoint parameter in Womersley boundary conditions");
    std::vector<NekDouble> apt;
    parseGood = ParseUtils::GenerateVector(Wparams["AXISPOINT"], apt);
    m_womersleyParams[fldid][bndid]->m_axispoint[0] = apt[0];
    m_womersleyParams[fldid][bndid]->m_axispoint[1] = apt[1];
    m_womersleyParams[fldid][bndid]->m_axispoint[2] = apt[2];
 
    // Read Temporal Fourier Coefficients.
 
    // Find the FourierCoeff tag
    TiXmlElement *coeff = wombc->FirstChildElement("FOURIERCOEFFS");
 
    // Input coefficients
    TiXmlElement *fval = coeff->FirstChildElement("F");
 
    int indx;
 
    while (fval)
    {
        TiXmlAttribute *fvalAttr = fval->FirstAttribute();
        std::string attrName(fvalAttr->Name());
 
        ASSERTL0(attrName == "ID",
                 (std::string("Unknown attribute name: ") + attrName).c_str());
 
        err = fvalAttr->QueryIntValue(&indx);
        ASSERTL0(err == TIXML_SUCCESS, "Unable to read attribute ID.");
 
        std::string coeffStr = fval->FirstChild()->ToText()->ValueStr();
        std::vector<NekDouble> coeffvals;
 
        parseGood = ParseUtils::GenerateVector(coeffStr, coeffvals);
        ASSERTL0(
            parseGood,
            (std::string("Problem reading value of fourier coefficient, ID=") +
             std::to_string(indx))
                .c_str());
        ASSERTL1(
            coeffvals.size() == 2,
            (std::string(
                 "Have not read two entries of Fourier coefficicent from ID=" +
                 std::to_string(indx))
                 .c_str()));
 
        m_womersleyParams[fldid][bndid]->m_wom_vel.push_back(
            NekComplexDouble(coeffvals[0], coeffvals[1]));
 
        fval = fval->NextSiblingElement("F");
    }
 
    // starting point of precalculation
    size_t i, j, k;
    // M fourier coefficients
    size_t M_coeffs = m_womersleyParams[fldid][bndid]->m_wom_vel.size();
    NekDouble R     = m_womersleyParams[fldid][bndid]->m_radius;
    NekDouble T     = m_womersleyParams[fldid][bndid]->m_period;
    Array<OneD, NekDouble> x0 = m_womersleyParams[fldid][bndid]->m_axispoint;
 
    NekComplexDouble rqR;
    // Womersley Number
    NekComplexDouble omega_c(2.0 * M_PI / T, 0.0);
    NekComplexDouble alpha_c(R * sqrt(omega_c.real() / m_kinvis), 0.0);
    NekComplexDouble z1(1.0, 0.0);
    NekComplexDouble i_pow_3q2(-1.0 / sqrt(2.0), 1.0 / sqrt(2.0));
 
    MultiRegions::ExpListSharedPtr BndCondExp;
    BndCondExp = m_fields[fldid]->GetBndCondExpansions()[bndid];
 
    StdRegions::StdExpansionSharedPtr bc;
    size_t cnt = 0;
    size_t nfq;
    Array<OneD, NekDouble> Bvals;
 
    size_t exp_npts = BndCondExp->GetExpSize();
    Array<OneD, NekDouble> wbc(exp_npts, 0.0);
 
    // allocate time indepedent variables
    m_womersleyParams[fldid][bndid]->m_poiseuille =
        Array<OneD, Array<OneD, NekDouble>>(exp_npts);
    m_womersleyParams[fldid][bndid]->m_zvel =
        Array<OneD, Array<OneD, Array<OneD, NekComplexDouble>>>(exp_npts);
    // could use M_coeffs - 1 but need to avoid complicating things
    Array<OneD, NekComplexDouble> zJ0(M_coeffs);
    Array<OneD, NekComplexDouble> lamda_n(M_coeffs);
    Array<OneD, NekComplexDouble> k_c(M_coeffs);
    NekComplexDouble zJ0r;
 
    for (k = 1; k < M_coeffs; k++)
    {
        k_c[k]     = NekComplexDouble((NekDouble)k, 0.0);
        lamda_n[k] = i_pow_3q2 * alpha_c * sqrt(k_c[k]);
        zJ0[k]     = Polylib::ImagBesselComp(0, lamda_n[k]);
    }
 
    // Loop over each element in an expansion
    for (i = 0; i < exp_npts; ++i, cnt++)
    {
        // Get Boundary and trace expansion
        bc  = BndCondExp->GetExp(i);
        nfq = bc->GetTotPoints();
 
        Array<OneD, NekDouble> x(nfq, 0.0);
        Array<OneD, NekDouble> y(nfq, 0.0);
        Array<OneD, NekDouble> z(nfq, 0.0);
        bc->GetCoords(x, y, z);
 
        m_womersleyParams[fldid][bndid]->m_poiseuille[i] =
            Array<OneD, NekDouble>(nfq);
        m_womersleyParams[fldid][bndid]->m_zvel[i] =
            Array<OneD, Array<OneD, NekComplexDouble>>(nfq);
 
        // Compute coefficients
        for (j = 0; j < nfq; j++)
        {
            rqR = NekComplexDouble(sqrt((x[j] - x0[0]) * (x[j] - x0[0]) +
                                        (y[j] - x0[1]) * (y[j] - x0[1]) +
                                        (z[j] - x0[2]) * (z[j] - x0[2])) /
                                       R,
                                   0.0);
 
            // Compute Poiseulle Flow
            m_womersleyParams[fldid][bndid]->m_poiseuille[i][j] =
                m_womersleyParams[fldid][bndid]->m_wom_vel[0].real() *
                (1. - rqR.real() * rqR.real());
 
            m_womersleyParams[fldid][bndid]->m_zvel[i][j] =
                Array<OneD, NekComplexDouble>(M_coeffs);
 
            // compute the velocity information
            for (k = 1; k < M_coeffs; k++)
            {
                zJ0r = Polylib::ImagBesselComp(0, rqR * lamda_n[k]);
                m_womersleyParams[fldid][bndid]->m_zvel[i][j][k] =
                    m_womersleyParams[fldid][bndid]->m_wom_vel[k] *
                    (z1 - (zJ0r / zJ0[k]));
            }
        }
    }
}

References ASSERTL0, ASSERTL1, Nektar::ParseUtils::GenerateVector(), Polylib::ImagBesselComp(), Nektar::SolverUtils::EquationSystem::m_fields, m_kinvis, m_womersleyParams, Nektar::LibUtilities::rad(), and tinysimd::sqrt().

Referenced by v_InitObject().

◆ SetWomersleyBoundary()

void Nektar::IncNavierStokes::SetWomersleyBoundary	(	const int	fldid,
		const int	bndid
	)

protected

Set Womersley Profile if specified.

Womersley boundary condition defintion

Definition at line 519 of file IncNavierStokes.cpp.

{
    ASSERTL1(m_womersleyParams.count(bndid) == 1,
             "Womersley parameters for this boundary have not been set up");
 
    WomersleyParamsSharedPtr WomParam = m_womersleyParams[fldid][bndid];
    NekComplexDouble zvel;
    size_t i, j, k;
 
    size_t M_coeffs = WomParam->m_wom_vel.size();
 
    NekDouble T           = WomParam->m_period;
    NekDouble axis_normal = WomParam->m_axisnormal[fldid];
 
    // Womersley Number
    NekComplexDouble omega_c(2.0 * M_PI / T, 0.0);
    NekComplexDouble k_c(0.0, 0.0);
    NekComplexDouble m_time_c(m_time, 0.0);
    NekComplexDouble zi(0.0, 1.0);
    NekComplexDouble i_pow_3q2(-1.0 / sqrt(2.0), 1.0 / sqrt(2.0));
 
    MultiRegions::ExpListSharedPtr BndCondExp;
    BndCondExp = m_fields[fldid]->GetBndCondExpansions()[bndid];
 
    StdRegions::StdExpansionSharedPtr bc;
    size_t cnt = 0;
    size_t nfq;
    Array<OneD, NekDouble> Bvals;
    size_t exp_npts = BndCondExp->GetExpSize();
    Array<OneD, NekDouble> wbc(exp_npts, 0.0);
 
    Array<OneD, NekComplexDouble> zt(M_coeffs);
 
    // preallocate the exponent
    for (k = 1; k < M_coeffs; k++)
    {
        k_c   = NekComplexDouble((NekDouble)k, 0.0);
        zt[k] = std::exp(zi * omega_c * k_c * m_time_c);
    }
 
    // Loop over each element in an expansion
    for (i = 0; i < exp_npts; ++i, cnt++)
    {
        // Get Boundary and trace expansion
        bc  = BndCondExp->GetExp(i);
        nfq = bc->GetTotPoints();
        Array<OneD, NekDouble> wbc(nfq, 0.0);
 
        // Compute womersley solution
        for (j = 0; j < nfq; j++)
        {
            wbc[j] = WomParam->m_poiseuille[i][j];
            for (k = 1; k < M_coeffs; k++)
            {
                zvel   = WomParam->m_zvel[i][j][k] * zt[k];
                wbc[j] = wbc[j] + zvel.real();
            }
        }
 
        // Multiply w by normal to get u,v,w component of velocity
        Vmath::Smul(nfq, axis_normal, wbc, 1, wbc, 1);
        // get the offset
        Bvals = BndCondExp->UpdateCoeffs() + BndCondExp->GetCoeff_Offset(i);
 
        // Push back to Coeff space
        bc->FwdTrans(wbc, Bvals);
    }
}

References ASSERTL1, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_time, m_womersleyParams, Vmath::Smul(), and tinysimd::sqrt().

Referenced by SetBoundaryConditions().

◆ SetZeroNormalVelocity()

void Nektar::IncNavierStokes::SetZeroNormalVelocity ( )

protected

Set Normal Velocity Component to Zero.

Definition at line 431 of file IncNavierStokes.cpp.

{
    // use static trip since cannot use UserDefinedTag for zero
    // velocity and have time dependent conditions
    static bool Setup = false;
 
    if (Setup == true)
    {
        return;
    }
    Setup = true;
 
    size_t i, n;
 
    Array<OneD, Array<OneD, const SpatialDomains::BoundaryConditionShPtr>>
        BndConds(m_spacedim);
    Array<OneD, Array<OneD, MultiRegions::ExpListSharedPtr>> BndExp(m_spacedim);
 
    for (int i = 0; i < m_spacedim; ++i)
    {
        BndConds[i] = m_fields[m_velocity[i]]->GetBndConditions();
        BndExp[i]   = m_fields[m_velocity[i]]->GetBndCondExpansions();
    }
 
    LocalRegions::ExpansionSharedPtr elmt, Bc;
 
    size_t cnt;
    size_t elmtid, nq, boundary;
 
    Array<OneD, Array<OneD, NekDouble>> normals;
    Array<OneD, NekDouble> Bphys, Bcoeffs;
 
    size_t fldid = m_velocity[0];
 
    for (cnt = n = 0; n < BndConds[0].size(); ++n)
    {
        if ((BndConds[0][n]->GetBoundaryConditionType() ==
             SpatialDomains::eDirichlet) &&
            (boost::iequals(BndConds[0][n]->GetUserDefined(),
                            "ZeroNormalComponent")))
        {
            size_t nExp = BndExp[0][n]->GetExpSize();
            for (i = 0; i < nExp; ++i, cnt++)
            {
                elmtid   = m_fieldsBCToElmtID[fldid][cnt];
                elmt     = m_fields[0]->GetExp(elmtid);
                boundary = m_fieldsBCToTraceID[fldid][cnt];
 
                normals = elmt->GetTraceNormal(boundary);
 
                nq = BndExp[0][n]->GetExp(i)->GetTotPoints();
                Array<OneD, NekDouble> normvel(nq, 0.0);
 
                for (int k = 0; k < m_spacedim; ++k)
                {
                    Bphys = BndExp[k][n]->UpdatePhys() +
                            BndExp[k][n]->GetPhys_Offset(i);
                    Bc = BndExp[k][n]->GetExp(i);
                    Vmath::Vvtvp(nq, normals[k], 1, Bphys, 1, normvel, 1,
                                 normvel, 1);
                }
 
                // negate normvel for next step
                Vmath::Neg(nq, normvel, 1);
 
                for (int k = 0; k < m_spacedim; ++k)
                {
                    Bphys = BndExp[k][n]->UpdatePhys() +
                            BndExp[k][n]->GetPhys_Offset(i);
                    Bcoeffs = BndExp[k][n]->UpdateCoeffs() +
                              BndExp[k][n]->GetCoeff_Offset(i);
                    Bc = BndExp[k][n]->GetExp(i);
                    Vmath::Vvtvp(nq, normvel, 1, normals[k], 1, Bphys, 1, Bphys,
                                 1);
                    Bc->FwdTransBndConstrained(Bphys, Bcoeffs);
                }
            }
        }
        else
        {
            cnt += BndExp[0][n]->GetExpSize();
        }
    }
}

References Nektar::SpatialDomains::eDirichlet, Nektar::SolverUtils::EquationSystem::m_fields, m_fieldsBCToElmtID, m_fieldsBCToTraceID, Nektar::SolverUtils::EquationSystem::m_spacedim, m_velocity, Vmath::Neg(), and Vmath::Vvtvp().

Referenced by SetBoundaryConditions().

◆ v_GetAeroForce()

void Nektar::IncNavierStokes::v_GetAeroForce ( Array< OneD, NekDouble > forces )

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 1009 of file IncNavierStokes.cpp.

{
    if (m_aeroForces.size() >= 12)
    {
        Vmath::Vcopy(12, m_aeroForces, 1, forces, 1);
    }
}

References m_aeroForces, and Vmath::Vcopy().

◆ v_GetDensity()

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

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 869 of file IncNavierStokes.cpp.

{
    int nPts = physfield[0].size();
    Vmath::Fill(nPts, 1.0, density, 1);
}

References Vmath::Fill().

◆ v_GetForceDimension()

virtual int Nektar::IncNavierStokes::v_GetForceDimension ( )

protectedpure virtual

Implemented in Nektar::VelocityCorrectionScheme, and Nektar::CoupledLinearNS.

Referenced by v_InitObject().

◆ v_GetMaxStdVelocity()

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

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::AdvectionSystem.

Definition at line 820 of file IncNavierStokes.cpp.

{
    size_t nvel  = m_velocity.size();
    size_t nelmt = m_fields[0]->GetExpSize();
 
    Array<OneD, NekDouble> stdVelocity(nelmt, 0.0);
    Array<OneD, Array<OneD, NekDouble>> velfields;
 
    if (m_HomogeneousType == eHomogeneous1D) // just do check on 2D info
    {
        velfields = Array<OneD, Array<OneD, NekDouble>>(2);
 
        for (size_t i = 0; i < 2; ++i)
        {
            velfields[i] = m_fields[m_velocity[i]]->UpdatePhys();
        }
    }
    else
    {
        velfields = Array<OneD, Array<OneD, NekDouble>>(nvel);
 
        for (size_t i = 0; i < nvel; ++i)
        {
            velfields[i] = m_fields[m_velocity[i]]->UpdatePhys();
        }
    }
 
    stdVelocity = m_extrapolation->GetMaxStdVelocity(velfields);
 
    return stdVelocity;
}

References Nektar::SolverUtils::EquationSystem::eHomogeneous1D, m_extrapolation, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_HomogeneousType, and m_velocity.

◆ v_GetMovableDoFs()

void Nektar::IncNavierStokes::v_GetMovableDoFs ( std::set< int > & dirDoFs )

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 989 of file IncNavierStokes.cpp.

{
    dirDoFs.clear();
    for (int i = 0; i < m_movableDoFs.size(); ++i)
    {
        if (m_movableDoFs[i])
        {
            dirDoFs.insert(i);
        }
    }
}

References Nektar::SolverUtils::EquationSystem::m_movableDoFs.

◆ v_GetMovingFrameDisp()

bool Nektar::IncNavierStokes::v_GetMovingFrameDisp ( Array< OneD, NekDouble > & vFrameDisp )

overrideprotectedvirtual

Function to get the angles between the moving frame of reference and stationary inertial reference frame

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 948 of file IncNavierStokes.cpp.

{
    if (m_movingFrameData.size())
    {
        ASSERTL0(
            vFrameDisp.size() == 6,
            "Arrays have different size, cannot get moving frame displacement");
        Vmath::Vcopy(vFrameDisp.size(), m_movingFrameData, 1, vFrameDisp, 1);
        return true;
    }
    else
    {
        return false;
    }
}

References ASSERTL0, Nektar::SolverUtils::EquationSystem::m_movingFrameData, and Vmath::Vcopy().

◆ v_GetMovingFramePivot()

void Nektar::IncNavierStokes::v_GetMovingFramePivot ( Array< OneD, NekDouble > & vFramePivot )

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 973 of file IncNavierStokes.cpp.

{
    ASSERTL0(vFramePivot.size() == 3,
             "Arrays have different size, cannot set moving frame pivot");
    Array<OneD, NekDouble> temp = m_movingFrameData + 18;
    Vmath::Vcopy(vFramePivot.size(), temp, 1, vFramePivot, 1);
}

References ASSERTL0, Nektar::SolverUtils::EquationSystem::m_movingFrameData, and Vmath::Vcopy().

◆ v_GetMovingFrameVelocities()

bool Nektar::IncNavierStokes::v_GetMovingFrameVelocities ( Array< OneD, NekDouble > & vFrameVels )

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 909 of file IncNavierStokes.cpp.

{
    if (m_movingFrameData.size())
    {
        ASSERTL0(vFrameVels.size() <= 12,
                 "Arrays have different dimensions, cannot get moving frame "
                 "velocities");
        Vmath::Vcopy(vFrameVels.size(), m_movingFrameData + 6, 1, vFrameVels,
                     1);
        return true;
    }
    else
    {
        return false;
    }
}

References ASSERTL0, Nektar::SolverUtils::EquationSystem::m_movingFrameData, and Vmath::Vcopy().

◆ v_GetPressure() [1/2]

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

inlineoverrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 282 of file IncNavierStokes.h.

    {
        return m_pressure;
    }

References m_pressure.

◆ v_GetPressure() [2/2]

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

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 856 of file IncNavierStokes.cpp.

{
    if (physfield.size())
    {
        pressure = physfield[physfield.size() - 1];
    }
}

◆ v_GetVelocity()

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

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 880 of file IncNavierStokes.cpp.

{
    for (int i = 0; i < m_spacedim; ++i)
    {
        velocity[i] = physfield[i];
    }
}

References Nektar::SolverUtils::EquationSystem::m_spacedim.

◆ v_HasConstantDensity()

bool Nektar::IncNavierStokes::v_HasConstantDensity ( )

inlineoverrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 225 of file IncNavierStokes.h.

    {
        return true;
    }

◆ v_InitObject()

void Nektar::IncNavierStokes::v_InitObject ( bool DeclareFeld = true )

overrideprotectedvirtual

Initialisation object for EquationSystem.

Continuous field

Setting up the normals

Reimplemented from Nektar::SolverUtils::AdvectionSystem.

Reimplemented in Nektar::PressDecompVCSFSI, Nektar::SmoothedProfileMethod, Nektar::VCSFSI, Nektar::VCSMapping, and Nektar::VelocityCorrectionScheme.

Definition at line 89 of file IncNavierStokes.cpp.

{
    AdvectionSystem::v_InitObject(DeclareField);
 
    int i, j;
    int numfields        = m_fields.size();
    std::string velids[] = {"u", "v", "w"};
 
    // Set up Velocity field to point to the first m_expdim of m_fields;
    m_velocity = Array<OneD, int>(m_spacedim);
 
    for (i = 0; i < m_spacedim; ++i)
    {
        for (j = 0; j < numfields; ++j)
        {
            std::string var = m_boundaryConditions->GetVariable(j);
            if (boost::iequals(velids[i], var))
            {
                m_velocity[i] = j;
                break;
            }
 
            ASSERTL0(j != numfields, "Failed to find field: " + var);
        }
    }
 
    // Set up equation type enum using kEquationTypeStr
    for (i = 0; i < (int)eEquationTypeSize; ++i)
    {
        bool match;
        m_session->MatchSolverInfo("EQTYPE", kEquationTypeStr[i], match, false);
        if (match)
        {
            m_equationType = (EquationType)i;
            break;
        }
    }
    ASSERTL0(i != eEquationTypeSize, "EQTYPE not found in SOLVERINFO section");
 
    m_session->LoadParameter("Kinvis", m_kinvis);
 
    // Default advection type per solver
    std::string vConvectiveType;
    switch (m_equationType)
    {
        case eUnsteadyStokes:
        case eSteadyLinearisedNS:
            vConvectiveType = "NoAdvection";
            break;
        case eUnsteadyNavierStokes:
        case eSteadyNavierStokes:
            vConvectiveType = "Convective";
            break;
        case eUnsteadyLinearisedNS:
            vConvectiveType = "Linearised";
            break;
        default:
            break;
    }
 
    // Check if advection type overridden
    if (m_session->DefinesTag("AdvectiveType") &&
        m_equationType != eUnsteadyStokes &&
        m_equationType != eSteadyLinearisedNS)
    {
        vConvectiveType = m_session->GetTag("AdvectiveType");
    }
 
    // Initialise advection
    m_advObject = SolverUtils::GetAdvectionFactory().CreateInstance(
        vConvectiveType, vConvectiveType);
    m_advObject->InitObject(m_session, m_fields);
 
    // Set up arrays for moving reference frame
    // Note: this must be done before the forcing
    if (DefinedForcing("MovingReferenceFrame"))
    {
        std::string vSolver = m_session->GetSolverInfo("SolverType");
        const bool isVCS = boost::iequals(vSolver, "VelocityCorrectionScheme");
        if (isVCS)
        {
            ASSERTL0(false, "The Forcing MovingRefenceFrame is no "
                            "longer supported for use in the "
                            "VelocityCorrectionScheme. Please replace the "
                            "SolverType with VCSFSI or PressDecompVCSFSI.");
        }
        // 0-5(inertial disp), 6-11(body vel), 12-17(body acce) current
        // 18-21(body pivot)
        m_strFrameData = {
            "X",   "Y",   "Z",   "Theta_x",  "Theta_y",  "Theta_z",
            "U",   "V",   "W",   "Omega_x",  "Omega_y",  "Omega_z",
            "A_x", "A_y", "A_z", "DOmega_x", "DOmega_y", "DOmega_z",
            "X0",  "Y0",  "Z0"};
        m_movingFrameData = Array<OneD, NekDouble>(21, 0.0);
        m_aeroForces      = Array<OneD, NekDouble>(12, 0.0); // p; vis
        m_movableDoFs.resize(6, false);
    }
    else
    {
        m_aeroForces = Array<OneD, NekDouble>(6, 0.0);
    }
    // Forcing terms
    m_forcing = SolverUtils::Forcing::Load(m_session, shared_from_this(),
                                           m_fields, v_GetForceDimension());
 
    // check to see if any Robin boundary conditions and if so set
    // up m_field to boundary condition maps;
    m_fieldsBCToElmtID      = Array<OneD, Array<OneD, int>>(numfields);
    m_fieldsBCToTraceID     = Array<OneD, Array<OneD, int>>(numfields);
    m_fieldsRadiationFactor = Array<OneD, Array<OneD, NekDouble>>(numfields);
 
    for (size_t i = 0; i < m_fields.size(); ++i)
    {
        bool Set = false;
 
        Array<OneD, const SpatialDomains::BoundaryConditionShPtr> BndConds;
        Array<OneD, MultiRegions::ExpListSharedPtr> BndExp;
        int radpts = 0;
 
        BndConds = m_fields[i]->GetBndConditions();
        BndExp   = m_fields[i]->GetBndCondExpansions();
        for (size_t n = 0; n < BndConds.size(); ++n)
        {
            if (boost::iequals(BndConds[n]->GetUserDefined(), "Radiation"))
            {
                ASSERTL0(
                    BndConds[n]->GetBoundaryConditionType() ==
                        SpatialDomains::eRobin,
                    "Radiation boundary condition must be of type Robin <R>");
 
                if (Set == false)
                {
                    m_fields[i]->GetBoundaryToElmtMap(m_fieldsBCToElmtID[i],
                                                      m_fieldsBCToTraceID[i]);
                    Set = true;
                }
                radpts += BndExp[n]->GetTotPoints();
            }
            if (boost::iequals(BndConds[n]->GetUserDefined(),
                               "ZeroNormalComponent"))
            {
                ASSERTL0(BndConds[n]->GetBoundaryConditionType() ==
                             SpatialDomains::eDirichlet,
                         "Zero Normal Component boundary condition option must "
                         "be of type Dirichlet <D>");
 
                if (Set == false)
                {
                    m_fields[i]->GetBoundaryToElmtMap(m_fieldsBCToElmtID[i],
                                                      m_fieldsBCToTraceID[i]);
                    Set = true;
                }
            }
        }
 
        m_fieldsRadiationFactor[i] = Array<OneD, NekDouble>(radpts);
 
        radpts = 0; // reset to use as a counter
 
        for (size_t n = 0; n < BndConds.size(); ++n)
        {
            if (boost::iequals(BndConds[n]->GetUserDefined(), "Radiation"))
            {
 
                int npoints = BndExp[n]->GetNpoints();
                Array<OneD, NekDouble> x0(npoints, 0.0);
                Array<OneD, NekDouble> x1(npoints, 0.0);
                Array<OneD, NekDouble> x2(npoints, 0.0);
                Array<OneD, NekDouble> tmpArray;
 
                BndExp[n]->GetCoords(x0, x1, x2);
 
                LibUtilities::EquationSharedPtr coeff =
                    std::static_pointer_cast<
                        SpatialDomains::RobinBoundaryCondition>(BndConds[n])
                        ->m_robinPrimitiveCoeff;
 
                coeff->Evaluate(x0, x1, x2, m_time,
                                tmpArray = m_fieldsRadiationFactor[i] + radpts);
                // Vmath::Neg(npoints,tmpArray = m_fieldsRadiationFactor[i]+
                // radpts,1);
                radpts += npoints;
            }
        }
    }
 
    // Set up maping for womersley BC - and load variables
    for (size_t i = 0; i < m_fields.size(); ++i)
    {
        for (size_t n = 0; n < m_fields[i]->GetBndConditions().size(); ++n)
        {
            if (boost::istarts_with(
                    m_fields[i]->GetBndConditions()[n]->GetUserDefined(),
                    "Womersley"))
            {
                // assumes that boundary condition is applied in normal
                // direction and is decomposed for each direction. There could
                // be a unique file for each direction
                m_womersleyParams[i][n] =
                    MemoryManager<WomersleyParams>::AllocateSharedPtr(
                        m_spacedim);
                // Read in fourier coeffs and precompute coefficients
                SetUpWomersley(
                    i, n, m_fields[i]->GetBndConditions()[n]->GetUserDefined());
 
                m_fields[i]->GetBoundaryToElmtMap(m_fieldsBCToElmtID[i],
                                                  m_fieldsBCToTraceID[i]);
            }
        }
    }
 
    // Set up Field Meta Data for output files
    m_fieldMetaDataMap["Kinvis"] = boost::lexical_cast<std::string>(m_kinvis);
    m_fieldMetaDataMap["TimeStep"] =
        boost::lexical_cast<std::string>(m_timestep);
}

Referenced by Nektar::CoupledLinearNS::v_InitObject(), and Nektar::VelocityCorrectionScheme::v_InitObject().

◆ v_PreIntegrate()

bool Nektar::IncNavierStokes::v_PreIntegrate ( int step )

overrideprotectedvirtual

Perform the extrapolation.

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 1057 of file IncNavierStokes.cpp.

{
    m_extrapolation->SubStepSaveFields(step);
    m_extrapolation->SubStepAdvance(step, m_time);
    SetBoundaryConditions(m_time + m_timestep);
    return false;
}

References m_extrapolation, Nektar::SolverUtils::EquationSystem::m_time, Nektar::SolverUtils::EquationSystem::m_timestep, and SetBoundaryConditions().

◆ v_SetAeroForce()

void Nektar::IncNavierStokes::v_SetAeroForce ( Array< OneD, NekDouble > forces )

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 1001 of file IncNavierStokes.cpp.

{
    if (m_aeroForces.size() >= 12)
    {
        Vmath::Vcopy(12, forces, 1, m_aeroForces, 1);
    }
}

References m_aeroForces, and Vmath::Vcopy().

◆ v_SetMovableDoFs()

void Nektar::IncNavierStokes::v_SetMovableDoFs ( const std::set< int > & dirDoFs )

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 981 of file IncNavierStokes.cpp.

{
    for (int i = 0; i < m_movableDoFs.size(); ++i)
    {
        m_movableDoFs[i] = dirDoFs.find(i) != dirDoFs.end();
    }
}

References Nektar::SolverUtils::EquationSystem::m_movableDoFs.

◆ v_SetMovingFrameDisp()

void Nektar::IncNavierStokes::v_SetMovingFrameDisp ( const Array< OneD, NekDouble > & vFrameDisp )

overrideprotectedvirtual

Function to set the angles between the moving frame of reference and stationary inertial reference frame

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 931 of file IncNavierStokes.cpp.

{
    if (m_movingFrameData.size())
    {
        ASSERTL0(
            vFrameDisp.size() == 6,
            "Arrays have different size, cannot set moving frame displacement");
        Array<OneD, NekDouble> temp = m_movingFrameData;
        Vmath::Vcopy(vFrameDisp.size(), vFrameDisp, 1, temp, 1);
    }
}

References ASSERTL0, Nektar::SolverUtils::EquationSystem::m_movingFrameData, and Vmath::Vcopy().

◆ v_SetMovingFramePivot()

void Nektar::IncNavierStokes::v_SetMovingFramePivot ( const Array< OneD, NekDouble > & vFramePivot )

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 964 of file IncNavierStokes.cpp.

{
    ASSERTL0(vFramePivot.size() == 3,
             "Arrays have different size, cannot set moving frame pivot");
    Array<OneD, NekDouble> temp = m_movingFrameData + 18;
    Vmath::Vcopy(vFramePivot.size(), vFramePivot, 1, temp, 1);
}

References ASSERTL0, Nektar::SolverUtils::EquationSystem::m_movingFrameData, and Vmath::Vcopy().

◆ v_SetMovingFrameVelocities()

void Nektar::IncNavierStokes::v_SetMovingFrameVelocities ( const Array< OneD, NekDouble > & vFrameVels )

overrideprotectedvirtual

Function to set the moving frame velocities calucated in the forcing this gives access to the moving reference forcing to set the velocities to be later used in enforcing the boundary condition in IncNavierStokes class

Reimplemented from Nektar::SolverUtils::FluidInterface.

Definition at line 896 of file IncNavierStokes.cpp.

{
    if (m_movingFrameData.size())
    {
        ASSERTL0(vFrameVels.size() <= 12,
                 "Arrays have different dimensions, cannot set moving frame "
                 "velocities");
        Array<OneD, NekDouble> temp = m_movingFrameData + 6;
        Vmath::Vcopy(vFrameVels.size(), vFrameVels, 1, temp, 1);
    }
}

References ASSERTL0, Nektar::SolverUtils::EquationSystem::m_movingFrameData, and Vmath::Vcopy().

◆ v_TransCoeffToPhys()

void Nektar::IncNavierStokes::v_TransCoeffToPhys ( void )

inlineoverrideprotectedvirtual

Virtual function for transformation to physical space.

Reimplemented from Nektar::SolverUtils::EquationSystem.

Reimplemented in Nektar::VelocityCorrectionScheme.

Definition at line 287 of file IncNavierStokes.h.

    {
        ASSERTL0(false, "This method is not defined in this class");
    }

References ASSERTL0.

◆ v_TransPhysToCoeff()

void Nektar::IncNavierStokes::v_TransPhysToCoeff ( void )

inlineoverrideprotectedvirtual

Virtual function for transformation to coefficient space.

Reimplemented from Nektar::SolverUtils::EquationSystem.

Reimplemented in Nektar::VelocityCorrectionScheme.

Definition at line 292 of file IncNavierStokes.h.

    {
        ASSERTL0(false, "This method is not defined in this class");
    }

References ASSERTL0.

◆ WriteModalEnergy()

void Nektar::IncNavierStokes::WriteModalEnergy ( void )

protected

Member Data Documentation

◆ eqTypeLookupIds

std::string Nektar::IncNavierStokes::eqTypeLookupIds

staticprotected

Initial value:

= {
    LibUtilities::SessionReader::RegisterEnumValue("EqType", "SteadyStokes",
                                                   eSteadyStokes),
    LibUtilities::SessionReader::RegisterEnumValue("EqType", "SteadyOseen",
                                                   eSteadyOseen),
    LibUtilities::SessionReader::RegisterEnumValue(
        "EqType", "SteadyNavierStokes", eSteadyNavierStokes),
    LibUtilities::SessionReader::RegisterEnumValue(
        "EqType", "SteadyLinearisedNS", eSteadyLinearisedNS),
    LibUtilities::SessionReader::RegisterEnumValue(
        "EqType", "UnsteadyNavierStokes", eUnsteadyNavierStokes),
    LibUtilities::SessionReader::RegisterEnumValue("EqType", "UnsteadyStokes",
                                                   eUnsteadyStokes)}

Definition at line 207 of file IncNavierStokes.h.

◆ m_aeroForces

Array<OneD, NekDouble> Nektar::IncNavierStokes::m_aeroForces

protected

Definition at line 205 of file IncNavierStokes.h.

Referenced by v_GetAeroForce(), v_InitObject(), and v_SetAeroForce().

◆ m_energysteps

int Nektar::IncNavierStokes::m_energysteps

protected

dump energy to file at steps time

Definition at line 187 of file IncNavierStokes.h.

◆ m_equationType

EquationType Nektar::IncNavierStokes::m_equationType

protected

equation type;

Definition at line 190 of file IncNavierStokes.h.

Referenced by Nektar::VelocityCorrectionScheme::SetUpExtrapolation(), Nektar::CoupledLinearNS::v_DoInitialise(), Nektar::CoupledLinearNS::v_DoSolve(), Nektar::CoupledLinearNS::v_InitObject(), and v_InitObject().

◆ m_extrapolation

ExtrapolateSharedPtr Nektar::IncNavierStokes::m_extrapolation

protected

Definition at line 163 of file IncNavierStokes.h.

Referenced by Nektar::VelocityCorrectionScheme::SetUpExtrapolation(), Nektar::VelocityCorrectionScheme::SetupFlowrate(), Nektar::VelocityCorrectionScheme::v_EvaluateAdvection_SetPressureBCs(), Nektar::VCSMapping::v_EvaluateAdvection_SetPressureBCs(), Nektar::VCSImplicit::v_EvaluateAdvection_SetPressureBCs(), Nektar::VelocityCorrectionScheme::v_GenerateSummary(), Nektar::VCSImplicit::v_GenerateSummary(), Nektar::VCSWeakPressure::v_GenerateSummary(), v_GetMaxStdVelocity(), Nektar::CoupledLinearNS::v_InitObject(), Nektar::VCSMapping::v_InitObject(), v_PreIntegrate(), Nektar::VCSMapping::v_SetUpPressureForcing(), Nektar::VelocityCorrectionScheme::v_SolvePressure(), Nektar::VCSMapping::v_SolvePressure(), Nektar::VCSImplicit::v_SolvePressure(), Nektar::VCSWeakPressure::v_SolvePressure(), Nektar::VelocityCorrectionScheme::v_SolveUnsteadyStokesSystem(), and Nektar::SmoothedProfileMethod::v_SolveUnsteadyStokesSystem().

◆ m_fieldsBCToElmtID

Array<OneD, Array<OneD, int> > Nektar::IncNavierStokes::m_fieldsBCToElmtID

protected

Mapping from BCs to Elmt IDs.

Definition at line 193 of file IncNavierStokes.h.

Referenced by SetRadiationBoundaryForcing(), SetZeroNormalVelocity(), and v_InitObject().

◆ m_fieldsBCToTraceID

Array<OneD, Array<OneD, int> > Nektar::IncNavierStokes::m_fieldsBCToTraceID

protected

Mapping from BCs to Elmt Edge IDs.

Definition at line 195 of file IncNavierStokes.h.

Referenced by SetRadiationBoundaryForcing(), SetZeroNormalVelocity(), and v_InitObject().

◆ m_fieldsRadiationFactor

Array<OneD, Array<OneD, NekDouble> > Nektar::IncNavierStokes::m_fieldsRadiationFactor

protected

RHS Factor for Radiation Condition.

Definition at line 197 of file IncNavierStokes.h.

Referenced by SetRadiationBoundaryForcing(), and v_InitObject().

◆ m_forcing

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

protected

Forcing terms.

Definition at line 173 of file IncNavierStokes.h.

Referenced by AddForcing(), Nektar::CoupledLinearNS::EvaluateAdvection(), EvaluateAdvectionTerms(), Nektar::VelocityCorrectionScheme::SetUpExtrapolation(), Nektar::CoupledLinearNS::Solve(), Nektar::VelocityCorrectionScheme::v_EvaluateAdvection_SetPressureBCs(), Nektar::VCSMapping::v_EvaluateAdvection_SetPressureBCs(), v_InitObject(), Nektar::VCSImplicit::v_SetUpPressureForcing(), and Nektar::VCSImplicit::v_SetUpViscousForcing().

◆ m_IncNavierStokesBCs

IncBoundaryConditionsSharedPtr Nektar::IncNavierStokes::m_IncNavierStokesBCs

protected

Definition at line 164 of file IncNavierStokes.h.

Referenced by Nektar::VelocityCorrectionScheme::SetUpExtrapolation(), Nektar::VelocityCorrectionScheme::UpdateVelocityBCs(), Nektar::VelocityCorrectionScheme::v_DoInitialise(), and Nektar::VelocityCorrectionScheme::v_EvaluateAdvection_SetPressureBCs().

◆ m_intSteps

int Nektar::IncNavierStokes::m_intSteps

protected

Number of time integration steps AND Order of extrapolation for pressure boundary conditions.

Definition at line 201 of file IncNavierStokes.h.

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

◆ m_kinvis

NekDouble Nektar::IncNavierStokes::m_kinvis

protected

Kinematic viscosity.

Definition at line 185 of file IncNavierStokes.h.

Referenced by Nektar::VelocityCorrectionScheme::AppendSVVFactors(), Nektar::VCSMapping::ApplyIncNSMappingForcing(), Nektar::CoupledLinearNS::Continuation(), Nektar::CoupledLinearNS::EvaluateNewtonRHS(), Nektar::CoupledLinearNS::SetUpCoupledMatrix(), Nektar::CoupledLinearNS::SetUpCoupledMatrix(), Nektar::VelocityCorrectionScheme::SetUpSVV(), SetUpWomersley(), Nektar::CoupledLinearNS::SolveSteadyNavierStokes(), Nektar::CoupledLinearNS::v_DoInitialise(), Nektar::VCSMapping::v_DoInitialise(), Nektar::VelocityCorrectionScheme::v_DoInitialise(), Nektar::CoupledLinearNS::v_DoSolve(), Nektar::VelocityCorrectionScheme::v_EvaluateAdvection_SetPressureBCs(), Nektar::VCSMapping::v_EvaluateAdvection_SetPressureBCs(), Nektar::VCSImplicit::v_EvaluateAdvection_SetPressureBCs(), v_InitObject(), Nektar::VelocityCorrectionScheme::v_InitObject(), Nektar::VCSMapping::v_SetUpPressureForcing(), Nektar::VCSMapping::v_SetUpViscousForcing(), Nektar::VelocityCorrectionScheme::v_SolvePressure(), Nektar::VCSImplicit::v_SolvePressure(), Nektar::VCSWeakPressure::v_SolvePressure(), Nektar::VelocityCorrectionScheme::v_SolveUnsteadyStokesSystem(), Nektar::SmoothedProfileMethod::v_SolveUnsteadyStokesSystem(), and Nektar::VCSMapping::v_SolveViscous().

◆ m_mdlFile

std::ofstream Nektar::IncNavierStokes::m_mdlFile

protected

modal energy file

Definition at line 167 of file IncNavierStokes.h.

◆ m_nConvectiveFields

int Nektar::IncNavierStokes::m_nConvectiveFields

protected

Number of fields to be convected;.

Definition at line 176 of file IncNavierStokes.h.

Referenced by Nektar::VCSMapping::ApplyIncNSMappingForcing(), Nektar::VCSImplicit::CheckUnsetGlobalLinSys(), EvaluateAdvectionTerms(), GetNConvectiveFields(), Nektar::VCSMapping::MappingAccelerationCorrection(), Nektar::VCSMapping::MappingAdvectionCorrection(), Nektar::VCSMapping::MappingPressureCorrection(), Nektar::VelocityCorrectionScheme::SetupFlowrate(), Nektar::VelocityCorrectionScheme::SetUpSVV(), Nektar::CoupledLinearNS::SolveUnsteadyStokesSystem(), Nektar::VCSImplicit::v_DoInitialise(), Nektar::VCSMapping::v_DoInitialise(), Nektar::VelocityCorrectionScheme::v_DoInitialise(), Nektar::VelocityCorrectionScheme::v_EvaluateAdvection_SetPressureBCs(), Nektar::VCSMapping::v_EvaluateAdvection_SetPressureBCs(), Nektar::CoupledLinearNS::v_InitObject(), Nektar::VelocityCorrectionScheme::v_InitObject(), Nektar::VCSMapping::v_SetUpPressureForcing(), Nektar::VelocityCorrectionScheme::v_SetUpViscousForcing(), Nektar::VCSImplicit::v_SetUpViscousForcing(), Nektar::VCSMapping::v_SolvePressure(), Nektar::VelocityCorrectionScheme::v_SolveViscous(), Nektar::VCSMapping::v_SolveViscous(), and Nektar::VCSImplicit::v_SolveViscous().

◆ m_pivotPoint

Array<OneD, NekDouble> Nektar::IncNavierStokes::m_pivotPoint

protected

pivot point for moving reference frame

Definition at line 204 of file IncNavierStokes.h.

◆ m_pressure

MultiRegions::ExpListSharedPtr Nektar::IncNavierStokes::m_pressure

protected

Pointer to field holding pressure field.

Definition at line 183 of file IncNavierStokes.h.

Referenced by Nektar::PressDecompVCSFSI::CalculateAddedMass(), Nektar::PressDecompVCSFSI::CalculateBCs(), Nektar::PressDecompVCSFSI::CorrectPressure(), Nektar::PressDecompVCSFSI::OutputPotentials(), Nektar::CoupledLinearNS::SetUpCoupledMatrix(), Nektar::SmoothedProfileMethod::SetUpExpansions(), Nektar::VelocityCorrectionScheme::SetUpExtrapolation(), Nektar::VelocityCorrectionScheme::SetupFlowrate(), Nektar::CoupledLinearNS::SolveLinearNS(), Nektar::PressDecompVCSFSI::SolvePa(), Nektar::PressDecompVCSFSI::SolvePotentials(), Nektar::VCSMapping::v_DoInitialise(), Nektar::VelocityCorrectionScheme::v_EvaluateAdvection_SetPressureBCs(), Nektar::VCSMapping::v_EvaluateAdvection_SetPressureBCs(), v_GetPressure(), Nektar::CoupledLinearNS::v_InitObject(), Nektar::VCSMapping::v_InitObject(), Nektar::VelocityCorrectionScheme::v_InitObject(), Nektar::CoupledLinearNS::v_Output(), Nektar::VCSImplicit::v_SetUpPressureForcing(), Nektar::VCSWeakPressure::v_SetUpPressureForcing(), Nektar::VelocityCorrectionScheme::v_SetUpViscousForcing(), Nektar::VCSMapping::v_SetUpViscousForcing(), Nektar::VCSImplicit::v_SetUpViscousForcing(), Nektar::VelocityCorrectionScheme::v_SolvePressure(), Nektar::VCSMapping::v_SolvePressure(), Nektar::VCSImplicit::v_SolvePressure(), Nektar::VCSWeakPressure::v_SolvePressure(), Nektar::VCSFSI::v_SolveSolid(), and Nektar::SmoothedProfileMethod::v_SolveUnsteadyStokesSystem().

◆ m_SmoothAdvection

bool Nektar::IncNavierStokes::m_SmoothAdvection

protected

bool to identify if advection term smoothing is requested

Definition at line 170 of file IncNavierStokes.h.

Referenced by Nektar::VelocityCorrectionScheme::v_EvaluateAdvection_SetPressureBCs(), Nektar::VCSMapping::v_EvaluateAdvection_SetPressureBCs(), and Nektar::VelocityCorrectionScheme::v_InitObject().

◆ m_velocity

Array<OneD, int> Nektar::IncNavierStokes::m_velocity

protected

int which identifies which components of m_fields contains the velocity (u,v,w);

Definition at line 180 of file IncNavierStokes.h.

◆ m_womersleyParams

std::map<int, std::map<int, WomersleyParamsSharedPtr> > Nektar::IncNavierStokes::m_womersleyParams

protected

Womersley parameters if required.

Definition at line 280 of file IncNavierStokes.h.

Referenced by SetUpWomersley(), SetWomersleyBoundary(), and v_InitObject().

Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ IncNavierStokes()

◆ ~IncNavierStokes()

Member Function Documentation

◆ AddForcing()

◆ DefinedForcing()

◆ EvaluateAdvectionTerms()

◆ GetNConvectiveFields()

◆ SetBoundaryConditions()

◆ SetRadiationBoundaryForcing()

◆ SetUpWomersley()

◆ SetWomersleyBoundary()

◆ SetZeroNormalVelocity()

◆ v_GetAeroForce()

◆ v_GetDensity()

◆ v_GetForceDimension()

◆ v_GetMaxStdVelocity()

◆ v_GetMovableDoFs()

◆ v_GetMovingFrameDisp()

◆ v_GetMovingFramePivot()

◆ v_GetMovingFrameVelocities()

◆ v_GetPressure() [1/2]

◆ v_GetPressure() [2/2]

◆ v_GetVelocity()

◆ v_HasConstantDensity()

◆ v_InitObject()

◆ v_PreIntegrate()

◆ v_SetAeroForce()

◆ v_SetMovableDoFs()

◆ v_SetMovingFrameDisp()

◆ v_SetMovingFramePivot()

◆ v_SetMovingFrameVelocities()

◆ v_TransCoeffToPhys()

◆ v_TransPhysToCoeff()

◆ WriteModalEnergy()

Member Data Documentation

◆ eqTypeLookupIds

◆ m_aeroForces

◆ m_energysteps

◆ m_equationType

◆ m_extrapolation

◆ m_fieldsBCToElmtID

◆ m_fieldsBCToTraceID

◆ m_fieldsRadiationFactor

◆ m_forcing

◆ m_IncNavierStokesBCs

◆ m_intSteps

◆ m_kinvis

◆ m_mdlFile

◆ m_nConvectiveFields

◆ m_pivotPoint

◆ m_pressure

◆ m_SmoothAdvection

◆ m_velocity

◆ m_womersleyParams