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

#include <FileSolution.h>

Inheritance diagram for Nektar::SolverUtils::FileSolution:

Static Public Member Functions
static SolverUtils::EquationSystemSharedPtr	create (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)
	Creates an instance of this class. More...

Static Public Attributes
static std::string	className
	Name of class. More...

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

static std::string	cmdSetStartChkNum

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

	~FileSolution () override=default

void	v_InitObject (bool DeclareField=true) override
	Initialise the object. More...

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

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	DoOdeRhs (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
	Compute the RHS. More...

void	DoOdeProjection (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
	Compute the projection. More...

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

bool	v_PostIntegrate (int step) override

bool	v_RequireFwdTrans () override

void	v_DoInitialise (bool dumpInitialConditions) override
	Sets up initial conditions. More...

void	UpdateField (NekDouble time)

Protected Member Functions inherited from Nektar::SolverUtils::AdvectionSystem
SOLVER_UTILS_EXPORT void	v_InitObject (bool DeclareField=true) override
	Initialisation object for EquationSystem. More...

SOLVER_UTILS_EXPORT bool	v_PostIntegrate (int step) override

virtual SOLVER_UTILS_EXPORT Array< OneD, NekDouble >	v_GetMaxStdVelocity (const NekDouble SpeedSoundFactor=1.0)

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

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

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

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

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

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

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

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. More...

virtual SOLVER_UTILS_EXPORT bool	v_PreIntegrate (int step)

virtual SOLVER_UTILS_EXPORT bool	v_PostIntegrate (int step)

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. More...

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...

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. More...

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

virtual SOLVER_UTILS_EXPORT void	v_InitObject (bool DeclareFeld=true)
	Initialisation object for EquationSystem. More...

virtual SOLVER_UTILS_EXPORT void	v_DoInitialise (bool dumpInitialConditions=true)
	Virtual function for initialisation implementation. More...

virtual SOLVER_UTILS_EXPORT void	v_DoSolve ()
	Virtual function for solve implementation. More...

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 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. 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_GenerateSummary (SummaryList &l)
	Virtual function for generating summary information. More...

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 MultiRegions::ExpListSharedPtr	v_GetPressure (void)

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

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

Protected Member Functions inherited from Nektar::SolverUtils::FluidInterface
virtual SOLVER_UTILS_EXPORT void	v_GetVelocity (const Array< OneD, const Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &velocity)=0

virtual SOLVER_UTILS_EXPORT bool	v_HasConstantDensity ()=0

virtual SOLVER_UTILS_EXPORT void	v_GetDensity (const Array< OneD, const Array< OneD, NekDouble > > &physfield, Array< OneD, NekDouble > &density)=0

virtual SOLVER_UTILS_EXPORT void	v_GetPressure (const Array< OneD, const Array< OneD, NekDouble > > &physfield, Array< OneD, NekDouble > &pressure)=0

virtual SOLVER_UTILS_EXPORT void	v_SetMovingFrameVelocities (const Array< OneD, NekDouble > &vFrameVels, const int step)

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

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

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

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

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

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

Private Attributes
FileFieldInterpolatorSharedPtr	m_solutionFile

std::set< std::string >	m_variableFile

Array< OneD, Array< OneD, NekDouble > >	m_coord

std::map< std::string, LibUtilities::EquationSharedPtr >	m_solutionFunction

Friends
class	MemoryManager< FileSolution >

Additional Inherited Members
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. More...

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. More...

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

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. More...

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

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

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

SOLVER_UTILS_EXPORT void	DoInitialise (bool dumpInitialConditions=true)
	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 std::string	GetSessionName ()
	Get Session name. More...

template<class T >
std::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	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. More...

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

SOLVER_UTILS_EXPORT SessionFunctionSharedPtr	GetFunction (std::string name, const MultiRegions::ExpListSharedPtr &field=MultiRegions::NullExpListSharedPtr, bool cache=false)
	Get a SessionFunction by name. 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 NekDouble	LinfError (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray)
	Linf error computation. More...

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. 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	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	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	GetTime ()
	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	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 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. More...

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

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. More...

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)

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

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)

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. More...

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. More...

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

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

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

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

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

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

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

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

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

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

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

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

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

std::vector< int >	m_intVariables

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

NekDouble	m_CFLGrowth
	CFL growth rate. More...

NekDouble	m_CFLEnd
	Maximun cfl in cfl growth. More...

int	m_abortSteps
	Number of steps between checks for abort conditions. More...

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...

int	m_steadyStateSteps
	Check for steady state at step interval. More...

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

int	m_filtersInfosteps
	Number of time steps between outputting filters information. More...

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

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

std::ofstream	m_errFile

NekDouble	m_epsilon
	Diffusion coefficient. More...

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

bool	m_verbose

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

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

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

Array< OneD, MultiRegions::ExpListSharedPtr >	m_fields
	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...

NekDouble	m_lastCheckTime

NekDouble	m_TimeIncrementFactor

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_infosteps
	Number of time steps between outputting status information. More...

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

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

Array< OneD, NekDouble >	m_movingFrameData
	Moving reference frame status in the inertial frame 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, pivot_x, pivot_y, pivot_z. More...

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

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_ImplicitALESolver = false

NekDouble	m_prevStageTime = 0.0

int	m_spaceDim

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

static std::string	projectionTypeLookupIds []

Detailed Description

This class is the base class for Navier Stokes problems.

Definition at line 110 of file FileSolution.h.

Constructor & Destructor Documentation

◆ FileSolution()

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

protected

Definition at line 75 of file FileSolution.cpp.

    : UnsteadySystem(pSession, pGraph), AdvectionSystem(pSession, pGraph)
{
    m_solutionFile = MemoryManager<FileFieldInterpolator>::AllocateSharedPtr();
}

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), and m_solutionFile.

◆ ~FileSolution()

Nektar::SolverUtils::FileSolution::~FileSolution ( )

overrideprotecteddefault

Member Function Documentation

◆ create()

static SolverUtils::EquationSystemSharedPtr Nektar::SolverUtils::FileSolution::create	(	const LibUtilities::SessionReaderSharedPtr &	pSession,
		const SpatialDomains::MeshGraphSharedPtr &	pGraph
	)

inlinestatic

Creates an instance of this class.

Definition at line 117 of file FileSolution.h.

    {
        SolverUtils::EquationSystemSharedPtr p =
            MemoryManager<FileSolution>::AllocateSharedPtr(pSession, pGraph);
        p->InitObject();
        return p;
    }

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), and CellMLToNektar.cellml_metadata::p.

◆ DoImplicitSolve()

void Nektar::SolverUtils::FileSolution::DoImplicitSolve	(	const Array< OneD, const Array< OneD, NekDouble > > &	inarray,
		Array< OneD, Array< OneD, NekDouble > > &	outarray,
		NekDouble	time,
		NekDouble	lambda
	)

protected

Definition at line 174 of file FileSolution.cpp.

178{

179}

Referenced by v_InitObject().

◆ DoOdeProjection()

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

protected

Compute the projection.

Compute the projection for the linear advection equation.

Parameters

inarray	Given fields.
outarray	Calculated solution.
time	Time.

Definition at line 207 of file FileSolution.cpp.

211{

212}

Referenced by v_InitObject().

◆ DoOdeRhs()

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

protected

Compute the RHS.

Compute the right-hand side for the linear advection equation.

Parameters

inarray	Given fields.
outarray	Calculated solution.
time	Time.

Definition at line 188 of file FileSolution.cpp.

{
    int nSolutionPts = GetNpoints();
    for (size_t i = 0; i < outarray.size(); ++i)
    {
        Vmath::Zero(nSolutionPts, outarray[i], 1);
    }
}

References Nektar::SolverUtils::EquationSystem::GetNpoints(), and Vmath::Zero().

Referenced by v_InitObject().

◆ UpdateField()

void Nektar::SolverUtils::FileSolution::UpdateField ( NekDouble time )

protected

Definition at line 232 of file FileSolution.cpp.

{
    for (int i = 0; i < m_fields.size(); ++i)
    {
        std::string var = m_session->GetVariable(i);
        if (m_solutionFunction.count(var))
        {
            m_solutionFunction[var]->Evaluate(m_coord[0], m_coord[1],
                                              m_coord[2], time,
                                              m_fields[i]->UpdatePhys());
            m_fields[i]->SetPhysState(true);
            bool wavespace = m_fields[i]->GetWaveSpace();
            m_fields[i]->SetWaveSpace(false);
            m_fields[i]->FwdTransBndConstrained(m_fields[i]->GetPhys(),
                                                m_fields[i]->UpdateCoeffs());
            m_fields[i]->SetWaveSpace(wavespace);
        }
        else if (m_variableFile.count(var))
        {
            m_solutionFile->InterpolateField(var, m_fields[i]->UpdateCoeffs(),
                                             time);
            m_fields[i]->SetPhysState(true);
            m_fields[i]->BwdTrans(m_fields[i]->GetCoeffs(),
                                  m_fields[i]->UpdatePhys());
        }
        else
        {
            ASSERTL0(false, "solution not defined for variable " + var);
        }
    }
}

References ASSERTL0, m_coord, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, m_solutionFile, m_solutionFunction, and m_variableFile.

Referenced by v_DoInitialise(), and v_PostIntegrate().

◆ v_DoInitialise()

void Nektar::SolverUtils::FileSolution::v_DoInitialise ( bool dumpInitialConditions )

overrideprotectedvirtual

Sets up initial conditions.

Sets the initial conditions.

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 220 of file FileSolution.cpp.

{
    m_time = m_solutionFile->GetStartTime();
    SetBoundaryConditions(m_time);
    UpdateField(m_time);
    if (dumpInitialConditions && m_checksteps && m_nchk == 0)
    {
        Checkpoint_Output(m_nchk);
    }
    ++m_nchk;
}

References Nektar::SolverUtils::EquationSystem::Checkpoint_Output(), Nektar::SolverUtils::EquationSystem::m_checksteps, Nektar::SolverUtils::EquationSystem::m_nchk, m_solutionFile, Nektar::SolverUtils::EquationSystem::m_time, Nektar::SolverUtils::EquationSystem::SetBoundaryConditions(), and UpdateField().

◆ v_GetDensity()

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

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 275 of file FileSolution.cpp.

{
    for (size_t i = 0; i < m_session->GetVariables().size(); ++i)
    {
        if (m_session->GetVariable(i) == "rho")
        {
            int npoints = m_fields[i]->GetNpoints();
            Vmath::Vcopy(npoints, physfield[i], 1, density, 1);
        }
    }
    Vmath::Fill(m_fields[0]->GetNpoints(), 1., density, 1);
}

References Vmath::Fill(), Nektar::SolverUtils::EquationSystem::GetNpoints(), Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, and Vmath::Vcopy().

◆ v_GetPressure()

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

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 269 of file FileSolution.cpp.

272{

273}

◆ v_GetVelocity()

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

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 302 of file FileSolution.cpp.

{
    int npoints = m_fields[0]->GetNpoints();
    if (boost::iequals(m_session->GetVariable(0), "u"))
    {
        // IncNavierStokesSolver
        for (int i = 0; i < velocity.size(); ++i)
        {
            Vmath::Vcopy(npoints, physfield[i], 1, velocity[i], 1);
        }
    }
    else if (boost::iequals(m_session->GetVariable(0), "rho") &&
             boost::iequals(m_session->GetVariable(1), "rhou"))
    {
        // CompressibleFlowSolver
        for (int i = 0; i < velocity.size(); ++i)
        {
            Vmath::Vdiv(npoints, physfield[i], 1, physfield[0], 1, velocity[i],
                        1);
        }
    }
    else
    {
        // Unknown
        ASSERTL0(false, "Could not identify velocity for ProcessVorticity");
    }
}

References ASSERTL0, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, Vmath::Vcopy(), and Vmath::Vdiv().

◆ v_HasConstantDensity()

bool Nektar::SolverUtils::FileSolution::v_HasConstantDensity ( )

overrideprotectedvirtual

Implements Nektar::SolverUtils::FluidInterface.

Definition at line 290 of file FileSolution.cpp.

{
    for (size_t i = 0; i < m_session->GetVariables().size(); ++i)
    {
        if (m_session->GetVariable(i) == "rho")
        {
            return false;
        }
    }
    return true;
}

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

◆ v_InitObject()

void Nektar::SolverUtils::FileSolution::v_InitObject ( bool DeclareField = true )

overrideprotectedvirtual

Initialise the object.

Initialisation object for the unsteady linear advection equation.

Reimplemented from Nektar::SolverUtils::AdvectionSystem.

Definition at line 85 of file FileSolution.cpp.

{
    // Call to the initialisation object of UnsteadySystem
    AdvectionSystem::v_InitObject(DeclareField);
 
    // If explicit it computes RHS and PROJECTION for the time integration
    m_ode.DefineOdeRhs(&FileSolution::DoOdeRhs, this);
    m_ode.DefineProjection(&FileSolution::DoOdeProjection, this);
    m_ode.DefineImplicitSolve(&FileSolution::DoImplicitSolve, this);
 
    // load solution
    for (size_t i = 0; i < m_session->GetVariables().size(); ++i)
    {
        if (m_session->GetFunctionType("Solution", m_session->GetVariable(i)) ==
            LibUtilities::eFunctionTypeFile)
        {
            m_variableFile.insert(m_session->GetVariable(i));
        }
        else if (m_session->GetFunctionType("Solution",
                                            m_session->GetVariable(i)) ==
                 LibUtilities::eFunctionTypeExpression)
        {
            m_solutionFunction[m_session->GetVariable(i)] =
                m_session->GetFunction("Solution", m_session->GetVariable(i));
        }
        else
        {
            ASSERTL0(false, "solution not defined for variable " +
                                m_session->GetVariable(i));
        }
    }
 
    if (m_variableFile.size())
    {
        std::map<std::string, int> series; // start, skip, slices, order
        int tmp;
        if (m_session->DefinesParameter("N_slices"))
        {
            m_session->LoadParameter("N_slices", tmp, 1);
            series["slices"] = tmp;
        }
        if (m_session->DefinesParameter("N_start"))
        {
            m_session->LoadParameter("N_start", tmp, 0);
            series["start"] = tmp;
        }
        if (m_session->DefinesParameter("N_skip"))
        {
            m_session->LoadParameter("N_skip", tmp, 1);
            series["skip"] = tmp;
        }
        if (m_session->DefinesParameter("BaseFlow_interporder"))
        {
            m_session->LoadParameter("BaseFlow_interporder", tmp, 1);
            series["order"] = tmp;
        }
        if (m_session->DefinesParameter("Is_periodic"))
        {
            m_session->LoadParameter("Is_periodic", tmp, 1);
            series["isperiodic"] = tmp;
        }
 
        std::map<std::string, NekDouble> times;
        NekDouble dtmp;
        if (m_session->DefinesParameter("time_start"))
        {
            m_session->LoadParameter("time_start", dtmp, 0.);
            times["start"] = dtmp;
        }
        if (m_session->DefinesParameter("period"))
        {
            m_session->LoadParameter("period", dtmp, 1.);
            times["period"] = dtmp;
        }
        m_solutionFile->InitObject("Solution", m_session, m_fields,
                                   m_variableFile, series, times);
    }
 
    if (m_solutionFunction.size())
    {
        m_coord    = Array<OneD, Array<OneD, NekDouble>>(3);
        int nq     = m_fields[0]->GetNpoints();
        m_coord[0] = Array<OneD, NekDouble>(nq);
        m_coord[1] = Array<OneD, NekDouble>(nq);
        m_coord[2] = Array<OneD, NekDouble>(nq);
        m_fields[0]->GetCoords(m_coord[0], m_coord[1], m_coord[2]);
    }
}

References ASSERTL0, Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineImplicitSolve(), Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineOdeRhs(), Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineProjection(), DoImplicitSolve(), DoOdeProjection(), DoOdeRhs(), Nektar::LibUtilities::eFunctionTypeExpression, Nektar::LibUtilities::eFunctionTypeFile, m_coord, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::UnsteadySystem::m_ode, Nektar::SolverUtils::EquationSystem::m_session, m_solutionFile, m_solutionFunction, m_variableFile, and Nektar::SolverUtils::AdvectionSystem::v_InitObject().

◆ v_PostIntegrate()

bool Nektar::SolverUtils::FileSolution::v_PostIntegrate ( int step )

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::AdvectionSystem.

Definition at line 214 of file FileSolution.cpp.

{
    UpdateField(m_time);
    return false;
}

References Nektar::SolverUtils::EquationSystem::m_time, and UpdateField().

◆ v_RequireFwdTrans()

bool Nektar::SolverUtils::FileSolution::v_RequireFwdTrans ( void )

overrideprotectedvirtual

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 264 of file FileSolution.cpp.

{
    return false;
}

Friends And Related Function Documentation

◆ MemoryManager< FileSolution >

friend class MemoryManager< FileSolution >

friend

Definition at line 100 of file FileSolution.h.

Member Data Documentation

◆ className

std::string Nektar::SolverUtils::FileSolution::className

static

Initial value:

=
    SolverUtils::GetEquationSystemFactory().RegisterCreatorFunction(
        "FileSolution", FileSolution::create,
        "review a solution from check point files.")

Name of class.

Constructor. Creates ...

Parameters

param

Definition at line 128 of file FileSolution.h.

◆ m_coord

Array<OneD, Array<OneD, NekDouble> > Nektar::SolverUtils::FileSolution::m_coord

private

Definition at line 181 of file FileSolution.h.

Referenced by UpdateField(), and v_InitObject().

◆ m_solutionFile

FileFieldInterpolatorSharedPtr Nektar::SolverUtils::FileSolution::m_solutionFile

private

Definition at line 179 of file FileSolution.h.

Referenced by FileSolution(), UpdateField(), v_DoInitialise(), and v_InitObject().

◆ m_solutionFunction

std::map<std::string, LibUtilities::EquationSharedPtr> Nektar::SolverUtils::FileSolution::m_solutionFunction

private

Definition at line 182 of file FileSolution.h.

Referenced by UpdateField(), and v_InitObject().

◆ m_variableFile

std::set<std::string> Nektar::SolverUtils::FileSolution::m_variableFile

private

Definition at line 180 of file FileSolution.h.

Referenced by UpdateField(), and v_InitObject().

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ FileSolution()

◆ ~FileSolution()

Member Function Documentation

◆ create()

◆ DoImplicitSolve()

◆ DoOdeProjection()

◆ DoOdeRhs()

◆ UpdateField()

◆ v_DoInitialise()

◆ v_GetDensity()

◆ v_GetPressure()

◆ v_GetVelocity()

◆ v_HasConstantDensity()

◆ v_InitObject()

◆ v_PostIntegrate()

◆ v_RequireFwdTrans()

Friends And Related Function Documentation

◆ MemoryManager< FileSolution >

Member Data Documentation

◆ className

◆ m_coord

◆ m_solutionFile

◆ m_solutionFunction

◆ m_variableFile