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Nektar::VelocityCorrectionScheme Class Reference

#include <VelocityCorrectionScheme.h>

Inheritance diagram for Nektar::VelocityCorrectionScheme:
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Collaboration diagram for Nektar::VelocityCorrectionScheme:
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Public Member Functions

 VelocityCorrectionScheme (const LibUtilities::SessionReaderSharedPtr &pSession)
 Constructor. More...
 
virtual ~VelocityCorrectionScheme ()
 
virtual void v_InitObject ()
 Init object for UnsteadySystem class. More...
 
void SetUpPressureForcing (const Array< OneD, const Array< OneD, NekDouble > > &fields, Array< OneD, Array< OneD, NekDouble > > &Forcing, const NekDouble aii_Dt)
 
void SetUpViscousForcing (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &Forcing, const NekDouble aii_Dt)
 
void SolvePressure (const Array< OneD, NekDouble > &Forcing)
 
void SolveViscous (const Array< OneD, const Array< OneD, NekDouble > > &Forcing, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble aii_Dt)
 
void SolveUnsteadyStokesSystem (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time, const NekDouble a_iixDt)
 
void EvaluateAdvection_SetPressureBCs (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
 
- Public Member Functions inherited from Nektar::IncNavierStokes
virtual ~IncNavierStokes ()
 
virtual void v_GetFluxVector (const int i, Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &flux)
 
virtual void v_NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numflux)
 
int GetNConvectiveFields (void)
 
Array< OneD, int > & GetVelocity (void)
 
Array< OneD, NekDoubleGetElmtCFLVals (void)
 
NekDouble GetCFLEstimate (int &elmtid)
 
void AddForcing (const SolverUtils::ForcingSharedPtr &pForce)
 
- Public Member Functions inherited from Nektar::SolverUtils::AdvectionSystem
SOLVER_UTILS_EXPORT AdvectionSystem (const LibUtilities::SessionReaderSharedPtr &pSession)
 
virtual SOLVER_UTILS_EXPORT ~AdvectionSystem ()
 
AdvectionSharedPtr GetAdvObject ()
 Returns the advection object held by this instance. More...
 
- Public Member Functions inherited from Nektar::SolverUtils::UnsteadySystem
virtual SOLVER_UTILS_EXPORT ~UnsteadySystem ()
 Destructor. More...
 
SOLVER_UTILS_EXPORT NekDouble GetTimeStep (const Array< OneD, const Array< OneD, NekDouble > > &inarray)
 Calculate the larger time-step mantaining the problem stable. More...
 
- Public Member Functions inherited from Nektar::SolverUtils::EquationSystem
virtual SOLVER_UTILS_EXPORT ~EquationSystem ()
 Destructor. More...
 
SOLVER_UTILS_EXPORT void SetUpTraceNormals (void)
 
SOLVER_UTILS_EXPORT void InitObject ()
 Initialises the members of this object. More...
 
SOLVER_UTILS_EXPORT void DoInitialise ()
 Perform any initialisation necessary before solving the problem. More...
 
SOLVER_UTILS_EXPORT void DoSolve ()
 Solve the problem. More...
 
SOLVER_UTILS_EXPORT void TransCoeffToPhys ()
 Transform from coefficient to physical space. More...
 
SOLVER_UTILS_EXPORT void TransPhysToCoeff ()
 Transform from physical to coefficient space. More...
 
SOLVER_UTILS_EXPORT void Output ()
 Perform output operations after solve. More...
 
SOLVER_UTILS_EXPORT NekDouble LinfError (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray)
 Linf error computation. More...
 
SOLVER_UTILS_EXPORT std::string GetSessionName ()
 Get Session name. More...
 
template<class T >
boost::shared_ptr< T > as ()
 
SOLVER_UTILS_EXPORT void ResetSessionName (std::string newname)
 Reset Session name. More...
 
SOLVER_UTILS_EXPORT
LibUtilities::SessionReaderSharedPtr 
GetSession ()
 Get Session name. More...
 
SOLVER_UTILS_EXPORT
MultiRegions::ExpListSharedPtr 
GetPressure ()
 Get pressure field if available. More...
 
SOLVER_UTILS_EXPORT void PrintSummary (std::ostream &out)
 Print a summary of parameters and solver characteristics. More...
 
SOLVER_UTILS_EXPORT void SetLambda (NekDouble lambda)
 Set parameter m_lambda. More...
 
SOLVER_UTILS_EXPORT void EvaluateFunction (Array< OneD, Array< OneD, NekDouble > > &pArray, std::string pFunctionName, const NekDouble pTime=0.0, const int domain=0)
 Evaluates a function as specified in the session file. More...
 
SOLVER_UTILS_EXPORT void EvaluateFunction (std::vector< std::string > pFieldNames, Array< OneD, Array< OneD, NekDouble > > &pFields, const std::string &pName, const NekDouble &pTime=0.0, const int domain=0)
 Populate given fields with the function from session. More...
 
SOLVER_UTILS_EXPORT void EvaluateFunction (std::vector< std::string > pFieldNames, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const std::string &pName, const NekDouble &pTime=0.0, const int domain=0)
 Populate given fields with the function from session. More...
 
SOLVER_UTILS_EXPORT void EvaluateFunction (std::string pFieldName, Array< OneD, NekDouble > &pArray, const std::string &pFunctionName, const NekDouble &pTime=0.0, const int domain=0)
 
SOLVER_UTILS_EXPORT std::string DescribeFunction (std::string pFieldName, const std::string &pFunctionName, const int domain)
 Provide a description of a function for a given field name. More...
 
SOLVER_UTILS_EXPORT void InitialiseBaseFlow (Array< OneD, Array< OneD, NekDouble > > &base)
 Perform initialisation of the base flow. More...
 
SOLVER_UTILS_EXPORT void SetInitialConditions (NekDouble initialtime=0.0, bool dumpInitialConditions=true, const int domain=0)
 Initialise the data in the dependent fields. More...
 
SOLVER_UTILS_EXPORT void EvaluateExactSolution (int field, Array< OneD, NekDouble > &outfield, const NekDouble time)
 Evaluates an exact solution. More...
 
SOLVER_UTILS_EXPORT NekDouble L2Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln, bool Normalised=false)
 Compute the L2 error between fields and a given exact solution. More...
 
SOLVER_UTILS_EXPORT NekDouble L2Error (unsigned int field, bool Normalised=false)
 Compute the L2 error of the fields. More...
 
SOLVER_UTILS_EXPORT Array
< OneD, NekDouble
ErrorExtraPoints (unsigned int field)
 Compute error (L2 and L_inf) over an larger set of quadrature points return [L2 Linf]. More...
 
SOLVER_UTILS_EXPORT void WeakAdvectionGreensDivergenceForm (const Array< OneD, Array< OneD, NekDouble > > &F, Array< OneD, NekDouble > &outarray)
 Compute the inner product $ (\nabla \phi \cdot F) $. More...
 
SOLVER_UTILS_EXPORT void WeakAdvectionDivergenceForm (const Array< OneD, Array< OneD, NekDouble > > &F, Array< OneD, NekDouble > &outarray)
 Compute the inner product $ (\phi, \nabla \cdot F) $. More...
 
SOLVER_UTILS_EXPORT void WeakAdvectionNonConservativeForm (const Array< OneD, Array< OneD, NekDouble > > &V, const Array< OneD, const NekDouble > &u, Array< OneD, NekDouble > &outarray, bool UseContCoeffs=false)
 Compute the inner product $ (\phi, V\cdot \nabla u) $. More...
 
f SOLVER_UTILS_EXPORT void AdvectionNonConservativeForm (const Array< OneD, Array< OneD, NekDouble > > &V, const Array< OneD, const NekDouble > &u, Array< OneD, NekDouble > &outarray, Array< OneD, NekDouble > &wk=NullNekDouble1DArray)
 Compute the non-conservative advection. More...
 
SOLVER_UTILS_EXPORT void WeakDGAdvection (const Array< OneD, Array< OneD, NekDouble > > &InField, Array< OneD, Array< OneD, NekDouble > > &OutField, bool NumericalFluxIncludesNormal=true, bool InFieldIsInPhysSpace=false, int nvariables=0)
 Calculate the weak discontinuous Galerkin advection. More...
 
SOLVER_UTILS_EXPORT void WeakDGDiffusion (const Array< OneD, Array< OneD, NekDouble > > &InField, Array< OneD, Array< OneD, NekDouble > > &OutField, bool NumericalFluxIncludesNormal=true, bool InFieldIsInPhysSpace=false)
 Calculate weak DG Diffusion in the LDG form. More...
 
SOLVER_UTILS_EXPORT void Checkpoint_Output (const int n)
 Write checkpoint file of m_fields. More...
 
SOLVER_UTILS_EXPORT void Checkpoint_Output (const int n, MultiRegions::ExpListSharedPtr &field, std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
 Write checkpoint file of custom data fields. More...
 
SOLVER_UTILS_EXPORT void Checkpoint_BaseFlow (const int n)
 Write base flow file of m_fields. More...
 
SOLVER_UTILS_EXPORT void WriteFld (const std::string &outname)
 Write field data to the given filename. More...
 
SOLVER_UTILS_EXPORT void WriteFld (const std::string &outname, MultiRegions::ExpListSharedPtr &field, std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
 Write input fields to the given filename. More...
 
SOLVER_UTILS_EXPORT void ImportFld (const std::string &infile, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields)
 Input field data from the given file. More...
 
SOLVER_UTILS_EXPORT void ImportFldToMultiDomains (const std::string &infile, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const int ndomains)
 Input field data from the given file to multiple domains. More...
 
SOLVER_UTILS_EXPORT void ImportFld (const std::string &infile, std::vector< std::string > &fieldStr, Array< OneD, Array< OneD, NekDouble > > &coeffs)
 Output a field. Input field data into array from the given file. More...
 
SOLVER_UTILS_EXPORT void ImportFld (const std::string &infile, MultiRegions::ExpListSharedPtr &pField, std::string &pFieldName)
 Output a field. Input field data into ExpList from the given file. More...
 
SOLVER_UTILS_EXPORT void ScanForHistoryPoints ()
 Builds map of which element holds each history point. More...
 
SOLVER_UTILS_EXPORT void WriteHistoryData (std::ostream &out)
 Probe each history point and write to file. More...
 
SOLVER_UTILS_EXPORT void SessionSummary (SummaryList &vSummary)
 Write out a session summary. More...
 
SOLVER_UTILS_EXPORT Array
< OneD,
MultiRegions::ExpListSharedPtr > & 
UpdateFields ()
 
SOLVER_UTILS_EXPORT
LibUtilities::FieldMetaDataMap
UpdateFieldMetaDataMap ()
 Get hold of FieldInfoMap so it can be updated. More...
 
SOLVER_UTILS_EXPORT NekDouble GetFinalTime ()
 Return final time. More...
 
SOLVER_UTILS_EXPORT int GetNcoeffs ()
 
SOLVER_UTILS_EXPORT int GetNcoeffs (const int eid)
 
SOLVER_UTILS_EXPORT int GetNumExpModes ()
 
SOLVER_UTILS_EXPORT const
Array< OneD, int > 
GetNumExpModesPerExp ()
 
SOLVER_UTILS_EXPORT int GetNvariables ()
 
SOLVER_UTILS_EXPORT const
std::string 
GetVariable (unsigned int i)
 
SOLVER_UTILS_EXPORT int GetTraceTotPoints ()
 
SOLVER_UTILS_EXPORT int GetTraceNpoints ()
 
SOLVER_UTILS_EXPORT int GetExpSize ()
 
SOLVER_UTILS_EXPORT int GetPhys_Offset (int n)
 
SOLVER_UTILS_EXPORT int GetCoeff_Offset (int n)
 
SOLVER_UTILS_EXPORT int GetTotPoints ()
 
SOLVER_UTILS_EXPORT int GetTotPoints (int n)
 
SOLVER_UTILS_EXPORT int GetNpoints ()
 
SOLVER_UTILS_EXPORT int GetNumElmVelocity ()
 
SOLVER_UTILS_EXPORT int GetSteps ()
 
SOLVER_UTILS_EXPORT NekDouble GetTimeStep ()
 
SOLVER_UTILS_EXPORT void CopyFromPhysField (const int i, Array< OneD, NekDouble > &output)
 
SOLVER_UTILS_EXPORT void CopyToPhysField (const int i, Array< OneD, NekDouble > &output)
 
SOLVER_UTILS_EXPORT void SetSteps (const int steps)
 
SOLVER_UTILS_EXPORT void ZeroPhysFields ()
 
SOLVER_UTILS_EXPORT void FwdTransFields ()
 
SOLVER_UTILS_EXPORT void GetFluxVector (const int i, Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &flux)
 
SOLVER_UTILS_EXPORT void GetFluxVector (const int i, Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &fluxX, Array< OneD, Array< OneD, NekDouble > > &fluxY)
 
SOLVER_UTILS_EXPORT void GetFluxVector (const int i, const int j, Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &flux)
 
SOLVER_UTILS_EXPORT void NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numflux)
 
SOLVER_UTILS_EXPORT void NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numfluxX, Array< OneD, Array< OneD, NekDouble > > &numfluxY)
 
SOLVER_UTILS_EXPORT void NumFluxforScalar (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &uflux)
 
SOLVER_UTILS_EXPORT void NumFluxforVector (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &qfield, Array< OneD, Array< OneD, NekDouble > > &qflux)
 
SOLVER_UTILS_EXPORT void SetModifiedBasis (const bool modbasis)
 
SOLVER_UTILS_EXPORT int NoCaseStringCompare (const std::string &s1, const std::string &s2)
 Perform a case-insensitive string comparison. More...
 
SOLVER_UTILS_EXPORT int GetCheckpointNumber ()
 
SOLVER_UTILS_EXPORT void SetCheckpointNumber (int num)
 
SOLVER_UTILS_EXPORT int GetCheckpointSteps ()
 
SOLVER_UTILS_EXPORT void SetCheckpointSteps (int num)
 
SOLVER_UTILS_EXPORT void SetTime (const NekDouble time)
 
SOLVER_UTILS_EXPORT void SetInitialStep (const int step)
 
SOLVER_UTILS_EXPORT void SetBoundaryConditions (NekDouble time)
 Evaluates the boundary conditions at the given time. More...
 
virtual SOLVER_UTILS_EXPORT bool v_NegatedOp ()
 Virtual function to identify if operator is negated in DoSolve. More...
 

Static Public Member Functions

static
SolverUtils::EquationSystemSharedPtr 
create (const LibUtilities::SessionReaderSharedPtr &pSession)
 Creates an instance of this class. More...
 

Static Public Attributes

static std::string className
 Name of class. More...
 

Protected Member Functions

virtual void v_GenerateSummary (SolverUtils::SummaryList &s)
 Print a summary of time stepping parameters. More...
 
virtual void v_TransCoeffToPhys (void)
 Virtual function for transformation to physical space. More...
 
virtual void v_TransPhysToCoeff (void)
 Virtual function for transformation to coefficient space. More...
 
virtual void v_DoInitialise (void)
 Sets up initial conditions. More...
 
virtual Array< OneD, bool > v_GetSystemSingularChecks ()
 
virtual int v_GetForceDimension ()
 
virtual void v_SetUpPressureForcing (const Array< OneD, const Array< OneD, NekDouble > > &fields, Array< OneD, Array< OneD, NekDouble > > &Forcing, const NekDouble aii_Dt)
 
virtual void v_SetUpViscousForcing (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &Forcing, const NekDouble aii_Dt)
 
virtual void v_SolvePressure (const Array< OneD, NekDouble > &Forcing)
 
virtual void v_SolveViscous (const Array< OneD, const Array< OneD, NekDouble > > &Forcing, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble aii_Dt)
 
virtual void v_EvaluateAdvection_SetPressureBCs (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
 
- Protected Member Functions inherited from Nektar::IncNavierStokes
 IncNavierStokes (const LibUtilities::SessionReaderSharedPtr &pSession)
 Constructor. More...
 
EquationType GetEquationType (void)
 
void EvaluateAdvectionTerms (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, Array< OneD, NekDouble > &wk=NullNekDouble1DArray)
 
void WriteModalEnergy (void)
 
void SetBoundaryConditions (NekDouble time)
 time dependent boundary conditions updating More...
 
void SetRadiationBoundaryForcing (int fieldid)
 Set Radiation forcing term. More...
 
void SetZeroNormalVelocity ()
 Set Normal Velocity Component to Zero. More...
 
bool CalcSteadyState (void)
 evaluate steady state More...
 
virtual
MultiRegions::ExpListSharedPtr 
v_GetPressure ()
 
virtual bool v_PreIntegrate (int step)
 
virtual bool v_PostIntegrate (int step)
 
- Protected Member Functions inherited from Nektar::SolverUtils::UnsteadySystem
SOLVER_UTILS_EXPORT UnsteadySystem (const LibUtilities::SessionReaderSharedPtr &pSession)
 Initialises UnsteadySystem class members. More...
 
SOLVER_UTILS_EXPORT NekDouble MaxTimeStepEstimator ()
 Get the maximum timestep estimator for cfl control. More...
 
virtual SOLVER_UTILS_EXPORT void v_DoSolve ()
 Solves an unsteady problem. More...
 
virtual SOLVER_UTILS_EXPORT void v_AppendOutput1D (Array< OneD, Array< OneD, NekDouble > > &solution1D)
 Print the solution at each solution point in a txt file. More...
 
virtual SOLVER_UTILS_EXPORT void v_NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numfluxX, Array< OneD, Array< OneD, NekDouble > > &numfluxY)
 
virtual SOLVER_UTILS_EXPORT void v_NumFluxforScalar (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &uflux)
 
virtual SOLVER_UTILS_EXPORT void v_NumFluxforVector (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &qfield, Array< OneD, Array< OneD, NekDouble > > &qflux)
 
virtual SOLVER_UTILS_EXPORT
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_SteadyStateCheck (int step)
 
SOLVER_UTILS_EXPORT void CheckForRestartTime (NekDouble &time)
 
SOLVER_UTILS_EXPORT void SVVVarDiffCoeff (const Array< OneD, Array< OneD, NekDouble > > vel, StdRegions::VarCoeffMap &varCoeffMap)
 Evaluate the SVV diffusion coefficient according to Moura's paper where it should proportional to h time velocity. More...
 
- Protected Member Functions inherited from Nektar::SolverUtils::EquationSystem
SOLVER_UTILS_EXPORT EquationSystem (const LibUtilities::SessionReaderSharedPtr &pSession)
 Initialises EquationSystem class members. More...
 
int nocase_cmp (const std::string &s1, const std::string &s2)
 
virtual SOLVER_UTILS_EXPORT
NekDouble 
v_LinfError (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray)
 Virtual function for the L_inf error computation between fields and a given exact solution. More...
 
virtual SOLVER_UTILS_EXPORT
NekDouble 
v_L2Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray, bool Normalised=false)
 Virtual function for the L_2 error computation between fields and a given exact solution. More...
 
virtual SOLVER_UTILS_EXPORT void v_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)
 
SOLVER_UTILS_EXPORT void SetUpBaseFields (SpatialDomains::MeshGraphSharedPtr &mesh)
 
SOLVER_UTILS_EXPORT void ImportFldBase (std::string pInfile, SpatialDomains::MeshGraphSharedPtr pGraph)
 
virtual SOLVER_UTILS_EXPORT void v_Output (void)
 
virtual SOLVER_UTILS_EXPORT void v_ExtraFldOutput (std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
 

Protected Attributes

bool m_useHomo1DSpecVanVisc
 bool to identify if spectral vanishing viscosity is active. More...
 
bool m_useSpecVanVisc
 bool to identify if spectral vanishing viscosity is active. More...
 
NekDouble m_sVVCutoffRatio
 cutt off ratio from which to start decayhing modes More...
 
NekDouble m_sVVDiffCoeff
 Diffusion coefficient of SVV modes. More...
 
Array< OneD, NekDoublem_saved_aii_Dt
 Save aiiDt value to use as a trip to reset global matrix setup. More...
 
StdRegions::VarCoeffMap m_varCoeffLap
 Variable Coefficient map for the Laplacian which can be activated as part of SVV or otherwise. More...
 
- Protected Attributes inherited from Nektar::IncNavierStokes
ExtrapolateSharedPtr m_extrapolation
 
std::ofstream m_mdlFile
 modal energy file More...
 
bool m_SmoothAdvection
 bool to identify if advection term smoothing is requested More...
 
std::vector
< SolverUtils::ForcingSharedPtr
m_forcing
 Forcing terms. More...
 
int m_nConvectiveFields
 Number of fields to be convected;. More...
 
Array< OneD, int > m_velocity
 int which identifies which components of m_fields contains the velocity (u,v,w); More...
 
MultiRegions::ExpListSharedPtr m_pressure
 Pointer to field holding pressure field. More...
 
NekDouble m_kinvis
 Kinematic viscosity. More...
 
int m_energysteps
 dump energy to file at steps time More...
 
int m_cflsteps
 dump cfl estimate 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...
 
EquationType m_equationType
 equation type; More...
 
Array< OneD, Array< OneD, int > > m_fieldsBCToElmtID
 Mapping from BCs to Elmt IDs. More...
 
Array< OneD, Array< OneD, int > > m_fieldsBCToTraceID
 Mapping from BCs to Elmt Edge IDs. More...
 
Array< OneD, Array< OneD,
NekDouble > > 
m_fieldsRadiationFactor
 RHS Factor for Radiation Condition. More...
 
int m_intSteps
 Number of time integration steps AND Order of extrapolation for pressure boundary conditions. More...
 
- Protected Attributes inherited from Nektar::SolverUtils::AdvectionSystem
SolverUtils::AdvectionSharedPtr m_advObject
 Advection term. More...
 
- Protected Attributes inherited from Nektar::SolverUtils::UnsteadySystem
int m_infosteps
 Number of time steps between outputting status information. More...
 
LibUtilities::TimeIntegrationWrapperSharedPtr m_intScheme
 Wrapper to the time integration scheme. More...
 
LibUtilities::TimeIntegrationSchemeOperators m_ode
 The time integration scheme operators to use. More...
 
LibUtilities::TimeIntegrationSolutionSharedPtr m_intSoln
 
NekDouble m_epsilon
 
bool m_explicitDiffusion
 Indicates if explicit or implicit treatment of diffusion is used. More...
 
bool m_explicitAdvection
 Indicates if explicit or implicit treatment of advection is used. More...
 
bool m_explicitReaction
 Indicates if explicit or implicit treatment of reaction is used. More...
 
bool m_homoInitialFwd
 Flag to determine if simulation should start in homogeneous forward transformed state. More...
 
std::vector< int > m_intVariables
 
std::vector< FilterSharedPtrm_filters
 
- Protected Attributes inherited from Nektar::SolverUtils::EquationSystem
LibUtilities::CommSharedPtr m_comm
 Communicator. More...
 
LibUtilities::SessionReaderSharedPtr m_session
 The session reader. More...
 
LibUtilities::FieldIOSharedPtr m_fld
 Field input/output. More...
 
std::map< std::string, Array
< OneD, Array< OneD, float > > > 
m_interpWeights
 Map of the interpolation weights for a specific filename. More...
 
std::map< std::string, Array
< OneD, Array< OneD, unsigned
int > > > 
m_interpInds
 Map of the interpolation indices for a specific filename. More...
 
Array< OneD,
MultiRegions::ExpListSharedPtr
m_fields
 Array holding all dependent variables. More...
 
Array< OneD,
MultiRegions::ExpListSharedPtr
m_base
 Base fields. More...
 
Array< OneD,
MultiRegions::ExpListSharedPtr
m_derivedfields
 Array holding all dependent variables. More...
 
SpatialDomains::BoundaryConditionsSharedPtr m_boundaryConditions
 Pointer to boundary conditions object. More...
 
SpatialDomains::MeshGraphSharedPtr m_graph
 Pointer to graph defining mesh. More...
 
std::string m_sessionName
 Name of the session. More...
 
NekDouble m_time
 Current time of simulation. More...
 
int m_initialStep
 Number of the step where the simulation should begin. More...
 
NekDouble m_fintime
 Finish time of the simulation. More...
 
NekDouble m_timestep
 Time step size. More...
 
NekDouble m_lambda
 Lambda constant in real system if one required. More...
 
std::set< std::string > m_loadedFields
 
NekDouble m_checktime
 Time between checkpoints. More...
 
int m_nchk
 Number of checkpoints written so far. More...
 
int m_steps
 Number of steps to take. More...
 
int m_checksteps
 Number of steps between checkpoints. More...
 
int m_spacedim
 Spatial dimension (>= expansion dim). More...
 
int m_expdim
 Expansion dimension. More...
 
bool m_singleMode
 Flag to determine if single homogeneous mode is used. More...
 
bool m_halfMode
 Flag to determine if half homogeneous mode is used. More...
 
bool m_multipleModes
 Flag to determine if use multiple homogenenous modes are used. More...
 
bool m_useFFT
 Flag to determine if FFT is used for homogeneous transform. More...
 
bool m_homogen_dealiasing
 Flag to determine if dealiasing is used for homogeneous simulations. More...
 
bool m_specHP_dealiasing
 Flag to determine if dealisising is usde for the Spectral/hp element discretisation. More...
 
enum MultiRegions::ProjectionType m_projectionType
 Type of projection; e.g continuous or discontinuous. More...
 
Array< OneD, Array< OneD,
NekDouble > > 
m_traceNormals
 Array holding trace normals for DG simulations in the forwards direction. More...
 
Array< OneD, Array< OneD,
Array< OneD, NekDouble > > > 
m_gradtan
 1 x nvariable x nq More...
 
Array< OneD, Array< OneD,
Array< OneD, NekDouble > > > 
m_tanbasis
 2 x m_spacedim x nq More...
 
Array< OneD, bool > m_checkIfSystemSingular
 Flag to indicate if the fields should be checked for singularity. More...
 
LibUtilities::FieldMetaDataMap m_fieldMetaDataMap
 Map to identify relevant solver info to dump in output fields. More...
 
int m_NumQuadPointsError
 Number of Quadrature points used to work out the error. More...
 
enum HomogeneousType m_HomogeneousType
 
NekDouble m_LhomX
 physical length in X direction (if homogeneous) More...
 
NekDouble m_LhomY
 physical length in Y direction (if homogeneous) More...
 
NekDouble m_LhomZ
 physical length in Z direction (if homogeneous) More...
 
int m_npointsX
 number of points in X direction (if homogeneous) More...
 
int m_npointsY
 number of points in Y direction (if homogeneous) More...
 
int m_npointsZ
 number of points in Z direction (if homogeneous) More...
 
int m_HomoDirec
 number of homogenous directions More...
 

Additional Inherited Members

- Public Attributes inherited from Nektar::SolverUtils::UnsteadySystem
NekDouble m_cflSafetyFactor
 CFL safety factor (comprise between 0 to 1). More...
 
- Protected Types inherited from Nektar::SolverUtils::EquationSystem
enum  HomogeneousType { eHomogeneous1D, eHomogeneous2D, eHomogeneous3D, eNotHomogeneous }
 Parameter for homogeneous expansions. More...
 

Detailed Description

Definition at line 43 of file VelocityCorrectionScheme.h.

Constructor & Destructor Documentation

Nektar::VelocityCorrectionScheme::VelocityCorrectionScheme ( const LibUtilities::SessionReaderSharedPtr pSession)

Constructor.

Constructor. Creates ...

Parameters
param

Definition at line 57 of file VelocityCorrectionScheme.cpp.

59  : UnsteadySystem(pSession),
60  IncNavierStokes(pSession),
62  {
63 
64  }
SOLVER_UTILS_EXPORT UnsteadySystem(const LibUtilities::SessionReaderSharedPtr &pSession)
Initialises UnsteadySystem class members.
static VarCoeffMap NullVarCoeffMap
Definition: StdRegions.hpp:227
IncNavierStokes(const LibUtilities::SessionReaderSharedPtr &pSession)
Constructor.
StdRegions::VarCoeffMap m_varCoeffLap
Variable Coefficient map for the Laplacian which can be activated as part of SVV or otherwise...
Nektar::VelocityCorrectionScheme::~VelocityCorrectionScheme ( void  )
virtual

Destructor

Definition at line 181 of file VelocityCorrectionScheme.cpp.

182  {
183  }

Member Function Documentation

static SolverUtils::EquationSystemSharedPtr Nektar::VelocityCorrectionScheme::create ( const LibUtilities::SessionReaderSharedPtr pSession)
inlinestatic

Creates an instance of this class.

Definition at line 48 of file VelocityCorrectionScheme.h.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr().

49  {
52  AllocateSharedPtr(pSession);
53  p->InitObject();
54  return p;
55  }
static boost::shared_ptr< DataType > AllocateSharedPtr()
Allocate a shared pointer from the memory pool.
boost::shared_ptr< EquationSystem > EquationSystemSharedPtr
A shared pointer to an EquationSystem object.
void Nektar::VelocityCorrectionScheme::EvaluateAdvection_SetPressureBCs ( const Array< OneD, const Array< OneD, NekDouble > > &  inarray,
Array< OneD, Array< OneD, NekDouble > > &  outarray,
const NekDouble  time 
)
inline

Definition at line 103 of file VelocityCorrectionScheme.h.

References v_EvaluateAdvection_SetPressureBCs().

Referenced by v_InitObject().

107  {
108  v_EvaluateAdvection_SetPressureBCs( inarray, outarray, time);
109  }
virtual void v_EvaluateAdvection_SetPressureBCs(const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
void Nektar::VelocityCorrectionScheme::SetUpPressureForcing ( const Array< OneD, const Array< OneD, NekDouble > > &  fields,
Array< OneD, Array< OneD, NekDouble > > &  Forcing,
const NekDouble  aii_Dt 
)
inline

Definition at line 68 of file VelocityCorrectionScheme.h.

References v_SetUpPressureForcing().

Referenced by SolveUnsteadyStokesSystem().

72  {
73  v_SetUpPressureForcing( fields, Forcing, aii_Dt);
74  }
virtual void v_SetUpPressureForcing(const Array< OneD, const Array< OneD, NekDouble > > &fields, Array< OneD, Array< OneD, NekDouble > > &Forcing, const NekDouble aii_Dt)
void Nektar::VelocityCorrectionScheme::SetUpViscousForcing ( const Array< OneD, const Array< OneD, NekDouble > > &  inarray,
Array< OneD, Array< OneD, NekDouble > > &  Forcing,
const NekDouble  aii_Dt 
)
inline

Definition at line 76 of file VelocityCorrectionScheme.h.

References v_SetUpViscousForcing().

Referenced by SolveUnsteadyStokesSystem().

80  {
81  v_SetUpViscousForcing( inarray, Forcing, aii_Dt);
82  }
virtual void v_SetUpViscousForcing(const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &Forcing, const NekDouble aii_Dt)
void Nektar::VelocityCorrectionScheme::SolvePressure ( const Array< OneD, NekDouble > &  Forcing)
inline

Definition at line 84 of file VelocityCorrectionScheme.h.

References v_SolvePressure().

Referenced by SolveUnsteadyStokesSystem().

85  {
86  v_SolvePressure( Forcing);
87  }
virtual void v_SolvePressure(const Array< OneD, NekDouble > &Forcing)
void Nektar::VelocityCorrectionScheme::SolveUnsteadyStokesSystem ( const Array< OneD, const Array< OneD, NekDouble > > &  inarray,
Array< OneD, Array< OneD, NekDouble > > &  outarray,
const NekDouble  time,
const NekDouble  aii_Dt 
)

Implicit part of the method - Poisson + nConv*Helmholtz

Definition at line 333 of file VelocityCorrectionScheme.cpp.

References Nektar::IncNavierStokes::m_extrapolation, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::IncNavierStokes::m_kinvis, Nektar::IncNavierStokes::m_nConvectiveFields, Nektar::IncNavierStokes::SetBoundaryConditions(), SetUpPressureForcing(), SetUpViscousForcing(), SolvePressure(), and SolveViscous().

Referenced by v_InitObject().

338  {
339  int i;
340  int phystot = m_fields[0]->GetTotPoints();
341 
342  Array<OneD, Array< OneD, NekDouble> > F(m_nConvectiveFields);
343  for(i = 0; i < m_nConvectiveFields; ++i)
344  {
345  F[i] = Array<OneD, NekDouble> (phystot);
346  }
347 
348  // Enforcing boundary conditions on all fields
349  SetBoundaryConditions(time);
350 
351  // Substep the pressure boundary condition if using substepping
352  m_extrapolation->SubStepSetPressureBCs(inarray,aii_Dt,m_kinvis);
353 
354  // Set up forcing term for pressure Poisson equation
355  SetUpPressureForcing(inarray, F, aii_Dt);
356 
357  // Solve Pressure System
358  SolvePressure (F[0]);
359 
360  // Set up forcing term for Helmholtz problems
361  SetUpViscousForcing(inarray, F, aii_Dt);
362 
363  // Solve velocity system
364  SolveViscous( F, outarray, aii_Dt);
365  }
void SetBoundaryConditions(NekDouble time)
time dependent boundary conditions updating
NekDouble m_kinvis
Kinematic viscosity.
void SolvePressure(const Array< OneD, NekDouble > &Forcing)
ExtrapolateSharedPtr m_extrapolation
int m_nConvectiveFields
Number of fields to be convected;.
void SolveViscous(const Array< OneD, const Array< OneD, NekDouble > > &Forcing, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble aii_Dt)
void SetUpViscousForcing(const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &Forcing, const NekDouble aii_Dt)
void SetUpPressureForcing(const Array< OneD, const Array< OneD, NekDouble > > &fields, Array< OneD, Array< OneD, NekDouble > > &Forcing, const NekDouble aii_Dt)
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
void Nektar::VelocityCorrectionScheme::SolveViscous ( const Array< OneD, const Array< OneD, NekDouble > > &  Forcing,
Array< OneD, Array< OneD, NekDouble > > &  outarray,
const NekDouble  aii_Dt 
)
inline

Definition at line 89 of file VelocityCorrectionScheme.h.

References v_SolveViscous().

Referenced by SolveUnsteadyStokesSystem().

93  {
94  v_SolveViscous( Forcing, outarray, aii_Dt);
95  }
virtual void v_SolveViscous(const Array< OneD, const Array< OneD, NekDouble > > &Forcing, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble aii_Dt)
void Nektar::VelocityCorrectionScheme::v_DoInitialise ( void  )
protectedvirtual

Sets up initial conditions.

Sets the initial conditions.

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Reimplemented in Nektar::VCSMapping.

Definition at line 228 of file VelocityCorrectionScheme.cpp.

References Nektar::SolverUtils::EquationSystem::m_fieldMetaDataMap, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::IncNavierStokes::m_kinvis, Nektar::IncNavierStokes::m_nConvectiveFields, Nektar::SolverUtils::EquationSystem::m_time, Nektar::SolverUtils::EquationSystem::m_timestep, Nektar::IncNavierStokes::SetBoundaryConditions(), and Nektar::SolverUtils::UnsteadySystem::v_DoInitialise().

229  {
230 
232 
233  // Set up Field Meta Data for output files
234  m_fieldMetaDataMap["Kinvis"] = boost::lexical_cast<std::string>(m_kinvis);
235  m_fieldMetaDataMap["TimeStep"] = boost::lexical_cast<std::string>(m_timestep);
236 
237  // set boundary conditions here so that any normal component
238  // correction are imposed before they are imposed on intiial
239  // field below
241 
242  for(int i = 0; i < m_nConvectiveFields; ++i)
243  {
244  m_fields[i]->LocalToGlobal();
245  m_fields[i]->ImposeDirichletConditions(m_fields[i]->UpdateCoeffs());
246  m_fields[i]->GlobalToLocal();
247  m_fields[i]->BwdTrans(m_fields[i]->GetCoeffs(),
248  m_fields[i]->UpdatePhys());
249  }
250  }
void SetBoundaryConditions(NekDouble time)
time dependent boundary conditions updating
NekDouble m_time
Current time of simulation.
NekDouble m_kinvis
Kinematic viscosity.
NekDouble m_timestep
Time step size.
int m_nConvectiveFields
Number of fields to be convected;.
LibUtilities::FieldMetaDataMap m_fieldMetaDataMap
Map to identify relevant solver info to dump in output fields.
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
virtual SOLVER_UTILS_EXPORT void v_DoInitialise()
Sets up initial conditions.
void Nektar::VelocityCorrectionScheme::v_EvaluateAdvection_SetPressureBCs ( const Array< OneD, const Array< OneD, NekDouble > > &  inarray,
Array< OneD, Array< OneD, NekDouble > > &  outarray,
const NekDouble  time 
)
protectedvirtual

Explicit part of the method - Advection, Forcing + HOPBCs

Reimplemented in Nektar::VCSMapping.

Definition at line 303 of file VelocityCorrectionScheme.cpp.

References Nektar::IncNavierStokes::EvaluateAdvectionTerms(), Nektar::IncNavierStokes::m_extrapolation, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::IncNavierStokes::m_forcing, Nektar::IncNavierStokes::m_kinvis, Nektar::IncNavierStokes::m_nConvectiveFields, Nektar::IncNavierStokes::m_pressure, and Nektar::IncNavierStokes::m_SmoothAdvection.

Referenced by EvaluateAdvection_SetPressureBCs().

307  {
308  EvaluateAdvectionTerms(inarray, outarray);
309 
310  // Smooth advection
312  {
313  for(int i = 0; i < m_nConvectiveFields; ++i)
314  {
315  m_pressure->SmoothField(outarray[i]);
316  }
317  }
318 
319  // Add forcing terms
320  std::vector<SolverUtils::ForcingSharedPtr>::const_iterator x;
321  for (x = m_forcing.begin(); x != m_forcing.end(); ++x)
322  {
323  (*x)->Apply(m_fields, inarray, outarray, time);
324  }
325 
326  // Calculate High-Order pressure boundary conditions
327  m_extrapolation->EvaluatePressureBCs(inarray,outarray,m_kinvis);
328  }
NekDouble m_kinvis
Kinematic viscosity.
ExtrapolateSharedPtr m_extrapolation
int m_nConvectiveFields
Number of fields to be convected;.
std::vector< SolverUtils::ForcingSharedPtr > m_forcing
Forcing terms.
bool m_SmoothAdvection
bool to identify if advection term smoothing is requested
void EvaluateAdvectionTerms(const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, Array< OneD, NekDouble > &wk=NullNekDouble1DArray)
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
MultiRegions::ExpListSharedPtr m_pressure
Pointer to field holding pressure field.
void Nektar::VelocityCorrectionScheme::v_GenerateSummary ( SolverUtils::SummaryList s)
protectedvirtual

Print a summary of time stepping parameters.

Prints a summary with some information regards the time-stepping.

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 188 of file VelocityCorrectionScheme.cpp.

References Nektar::SolverUtils::AddSummaryItem(), Nektar::LibUtilities::eNoTimeIntegrationMethod, Nektar::IncNavierStokes::m_extrapolation, Nektar::SolverUtils::EquationSystem::m_homogen_dealiasing, Nektar::SolverUtils::EquationSystem::m_specHP_dealiasing, m_sVVCutoffRatio, m_sVVDiffCoeff, m_useHomo1DSpecVanVisc, m_useSpecVanVisc, Nektar::LibUtilities::TimeIntegrationMethodMap, and Nektar::SolverUtils::UnsteadySystem::v_GenerateSummary().

189  {
191 
192  if (m_extrapolation->GetSubStepIntegrationMethod() !=
194  {
195  SolverUtils::AddSummaryItem(s, "Substepping",
197  m_extrapolation->GetSubStepIntegrationMethod()]);
198  }
199 
200  string dealias = m_homogen_dealiasing ? "Homogeneous1D" : "";
202  {
203  dealias += (dealias == "" ? "" : " + ") + string("spectral/hp");
204  }
205  if (dealias != "")
206  {
207  SolverUtils::AddSummaryItem(s, "Dealiasing", dealias);
208  }
209 
210  string smoothing = m_useSpecVanVisc ? "spectral/hp" : "";
212  {
213  smoothing += (smoothing == "" ? "" : " + ") + string("Homogeneous1D");
214  }
215  if (smoothing != "")
216  {
218  s, "Smoothing", "SVV (" + smoothing + " SVV (cut-off = "
219  + boost::lexical_cast<string>(m_sVVCutoffRatio)
220  + ", diff coeff = "
221  + boost::lexical_cast<string>(m_sVVDiffCoeff)+")");
222  }
223  }
bool m_useHomo1DSpecVanVisc
bool to identify if spectral vanishing viscosity is active.
NekDouble m_sVVDiffCoeff
Diffusion coefficient of SVV modes.
ExtrapolateSharedPtr m_extrapolation
bool m_specHP_dealiasing
Flag to determine if dealisising is usde for the Spectral/hp element discretisation.
const char *const TimeIntegrationMethodMap[]
virtual SOLVER_UTILS_EXPORT void v_GenerateSummary(SummaryList &s)
Print a summary of time stepping parameters.
void AddSummaryItem(SummaryList &l, const std::string &name, const std::string &value)
Adds a summary item to the summary info list.
Definition: Misc.cpp:50
bool m_homogen_dealiasing
Flag to determine if dealiasing is used for homogeneous simulations.
NekDouble m_sVVCutoffRatio
cutt off ratio from which to start decayhing modes
bool m_useSpecVanVisc
bool to identify if spectral vanishing viscosity is active.
int Nektar::VelocityCorrectionScheme::v_GetForceDimension ( void  )
protectedvirtual

Implements Nektar::IncNavierStokes.

Definition at line 295 of file VelocityCorrectionScheme.cpp.

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

296  {
297  return m_session->GetVariables().size() - 1;
298  }
LibUtilities::SessionReaderSharedPtr m_session
The session reader.
Array< OneD, bool > Nektar::VelocityCorrectionScheme::v_GetSystemSingularChecks ( )
protectedvirtual

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 284 of file VelocityCorrectionScheme.cpp.

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

285  {
286  int vVar = m_session->GetVariables().size();
287  Array<OneD, bool> vChecks(vVar, false);
288  vChecks[vVar-1] = true;
289  return vChecks;
290  }
LibUtilities::SessionReaderSharedPtr m_session
The session reader.
void Nektar::VelocityCorrectionScheme::v_InitObject ( )
virtual

Init object for UnsteadySystem class.

Initialization object for UnsteadySystem class.

Reimplemented from Nektar::IncNavierStokes.

Reimplemented in Nektar::VCSMapping.

Definition at line 66 of file VelocityCorrectionScheme.cpp.

References ASSERTL0, Nektar::LibUtilities::NekFactory< tKey, tBase, >::CreateInstance(), Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineImplicitSolve(), Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineOdeRhs(), Nektar::SolverUtils::EquationSystem::eHomogeneous1D, Nektar::eUnsteadyNavierStokes, EvaluateAdvection_SetPressureBCs(), Nektar::GetExtrapolateFactory(), Nektar::NekConstants::kNekUnsetDouble, Nektar::SolverUtils::AdvectionSystem::m_advObject, Nektar::IncNavierStokes::m_equationType, Nektar::SolverUtils::UnsteadySystem::m_explicitDiffusion, Nektar::IncNavierStokes::m_extrapolation, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_HomogeneousType, Nektar::SolverUtils::UnsteadySystem::m_intScheme, Nektar::SolverUtils::UnsteadySystem::m_intVariables, Nektar::IncNavierStokes::m_kinvis, Nektar::IncNavierStokes::m_nConvectiveFields, Nektar::SolverUtils::UnsteadySystem::m_ode, Nektar::IncNavierStokes::m_pressure, m_saved_aii_Dt, Nektar::SolverUtils::EquationSystem::m_session, Nektar::IncNavierStokes::m_SmoothAdvection, Nektar::SolverUtils::EquationSystem::m_specHP_dealiasing, m_sVVCutoffRatio, m_sVVDiffCoeff, m_useHomo1DSpecVanVisc, m_useSpecVanVisc, Nektar::IncNavierStokes::m_velocity, SolveUnsteadyStokesSystem(), and Nektar::IncNavierStokes::v_InitObject().

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

67  {
68  int n;
69 
71  m_explicitDiffusion = false;
72 
73  // Set m_pressure to point to last field of m_fields;
74  if (boost::iequals(m_session->GetVariable(m_fields.num_elements()-1), "p"))
75  {
76  m_nConvectiveFields = m_fields.num_elements()-1;
78  }
79  else
80  {
81  ASSERTL0(false,"Need to set up pressure field definition");
82  }
83 
84  // creation of the extrapolation object
86  {
87  std::string vExtrapolation = "Standard";
88 
89  if (m_session->DefinesSolverInfo("Extrapolation"))
90  {
91  vExtrapolation = m_session->GetSolverInfo("Extrapolation");
92  }
93 
95  vExtrapolation,
96  m_session,
97  m_fields,
98  m_pressure,
99  m_velocity,
100  m_advObject);
101  }
102 
103  // Integrate only the convective fields
104  for (n = 0; n < m_nConvectiveFields; ++n)
105  {
106  m_intVariables.push_back(n);
107  }
108 
109  m_saved_aii_Dt = Array<OneD, NekDouble>(m_nConvectiveFields,
111 
112  // Load parameters for Spectral Vanishing Viscosity
113  m_session->MatchSolverInfo("SpectralVanishingViscosity","True",
114  m_useSpecVanVisc,false);
115  m_session->LoadParameter("SVVCutoffRatio",m_sVVCutoffRatio,0.75);
116  m_session->LoadParameter("SVVDiffCoeff", m_sVVDiffCoeff, 0.1);
117  // Needs to be set outside of next if so that it is turned off by default
118  m_session->MatchSolverInfo("SpectralVanishingViscosityHomo1D","True",
119  m_useHomo1DSpecVanVisc,false);
120 
121 
122  m_session->MatchSolverInfo("SPECTRALHPDEALIASING","True",
123  m_specHP_dealiasing,false);
124 
125 
127  {
128  ASSERTL0(m_nConvectiveFields > 2,"Expect to have three velocity fields with homogenous expansion");
129 
130  if(m_useHomo1DSpecVanVisc == false)
131  {
132  m_session->MatchSolverInfo("SpectralVanishingViscosity","True",m_useHomo1DSpecVanVisc,false);
133  }
134 
136  {
137  Array<OneD, unsigned int> planes;
138  planes = m_fields[0]->GetZIDs();
139 
140  int num_planes = planes.num_elements();
141  Array<OneD, NekDouble> SVV(num_planes,0.0);
142  NekDouble fac;
143  int kmodes = m_fields[0]->GetHomogeneousBasis()->GetNumModes();
144  int pstart;
145 
146  pstart = m_sVVCutoffRatio*kmodes;
147 
148  for(n = 0; n < num_planes; ++n)
149  {
150  if(planes[n] > pstart)
151  {
152  fac = (NekDouble)((planes[n] - kmodes)*(planes[n] - kmodes))/
153  ((NekDouble)((planes[n] - pstart)*(planes[n] - pstart)));
154  SVV[n] = m_sVVDiffCoeff*exp(-fac)/m_kinvis;
155  }
156  }
157 
158  for(int i = 0; i < m_velocity.num_elements(); ++i)
159  {
160  m_fields[m_velocity[i]]->SetHomo1DSpecVanVisc(SVV);
161  }
162  }
163 
164  }
165 
166  m_session->MatchSolverInfo("SmoothAdvection", "True", m_SmoothAdvection, false);
167 
168  // set explicit time-intregration class operators
170 
171  m_extrapolation->SubSteppingTimeIntegration(m_intScheme->GetIntegrationMethod(), m_intScheme);
172  m_extrapolation->GenerateHOPBCMap();
173 
174  // set implicit time-intregration class operators
176  }
EquationType m_equationType
equation type;
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:161
void EvaluateAdvection_SetPressureBCs(const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
SolverUtils::AdvectionSharedPtr m_advObject
Advection term.
tBaseSharedPtr CreateInstance(tKey idKey BOOST_PP_COMMA_IF(MAX_PARAM) BOOST_PP_ENUM_BINARY_PARAMS(MAX_PARAM, tParam, x))
Create an instance of the class referred to by idKey.
Definition: NekFactory.hpp:162
void SolveUnsteadyStokesSystem(const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time, const NekDouble a_iixDt)
bool m_explicitDiffusion
Indicates if explicit or implicit treatment of diffusion is used.
NekDouble m_kinvis
Kinematic viscosity.
void DefineImplicitSolve(FuncPointerT func, ObjectPointerT obj)
ExtrapolateFactory & GetExtrapolateFactory()
Definition: Extrapolate.cpp:50
LibUtilities::TimeIntegrationSchemeOperators m_ode
The time integration scheme operators to use.
Array< OneD, int > m_velocity
int which identifies which components of m_fields contains the velocity (u,v,w);
bool m_useHomo1DSpecVanVisc
bool to identify if spectral vanishing viscosity is active.
NekDouble m_sVVDiffCoeff
Diffusion coefficient of SVV modes.
ExtrapolateSharedPtr m_extrapolation
bool m_specHP_dealiasing
Flag to determine if dealisising is usde for the Spectral/hp element discretisation.
int m_nConvectiveFields
Number of fields to be convected;.
void DefineOdeRhs(FuncPointerT func, ObjectPointerT obj)
bool m_SmoothAdvection
bool to identify if advection term smoothing is requested
double NekDouble
static const NekDouble kNekUnsetDouble
NekDouble m_sVVCutoffRatio
cutt off ratio from which to start decayhing modes
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
Array< OneD, NekDouble > m_saved_aii_Dt
Save aiiDt value to use as a trip to reset global matrix setup.
bool m_useSpecVanVisc
bool to identify if spectral vanishing viscosity is active.
LibUtilities::SessionReaderSharedPtr m_session
The session reader.
LibUtilities::TimeIntegrationWrapperSharedPtr m_intScheme
Wrapper to the time integration scheme.
MultiRegions::ExpListSharedPtr m_pressure
Pointer to field holding pressure field.
virtual void v_InitObject()
Init object for UnsteadySystem class.
enum HomogeneousType m_HomogeneousType
void Nektar::VelocityCorrectionScheme::v_SetUpPressureForcing ( const Array< OneD, const Array< OneD, NekDouble > > &  fields,
Array< OneD, Array< OneD, NekDouble > > &  Forcing,
const NekDouble  aii_Dt 
)
protectedvirtual

Forcing term for Poisson solver solver

Reimplemented in Nektar::VCSMapping.

Definition at line 370 of file VelocityCorrectionScheme.cpp.

References Nektar::MultiRegions::DirCartesianMap, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::IncNavierStokes::m_velocity, Vmath::Smul(), Vmath::Vadd(), and Vmath::Zero().

Referenced by SetUpPressureForcing(), and Nektar::VCSMapping::v_SetUpPressureForcing().

374  {
375  int i;
376  int physTot = m_fields[0]->GetTotPoints();
377  int nvel = m_velocity.num_elements();
378  Array<OneD, NekDouble> wk(physTot, 0.0);
379 
380  Vmath::Zero(physTot,Forcing[0],1);
381 
382  for(i = 0; i < nvel; ++i)
383  {
384  m_fields[i]->PhysDeriv(MultiRegions::DirCartesianMap[i],fields[i], wk);
385  Vmath::Vadd(physTot,wk,1,Forcing[0],1,Forcing[0],1);
386  }
387 
388  Vmath::Smul(physTot,1.0/aii_Dt,Forcing[0],1,Forcing[0],1);
389  }
Array< OneD, int > m_velocity
int which identifies which components of m_fields contains the velocity (u,v,w);
void Smul(int n, const T alpha, const T *x, const int incx, T *y, const int incy)
Scalar multiply y = alpha*y.
Definition: Vmath.cpp:199
MultiRegions::Direction const DirCartesianMap[]
Definition: ExpList.h:86
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
void Zero(int n, T *x, const int incx)
Zero vector.
Definition: Vmath.cpp:359
void Vadd(int n, const T *x, const int incx, const T *y, const int incy, T *z, const int incz)
Add vector z = x+y.
Definition: Vmath.cpp:285
void Nektar::VelocityCorrectionScheme::v_SetUpViscousForcing ( const Array< OneD, const Array< OneD, NekDouble > > &  inarray,
Array< OneD, Array< OneD, NekDouble > > &  Forcing,
const NekDouble  aii_Dt 
)
protectedvirtual

Forcing term for Helmholtz solver

Reimplemented in Nektar::VCSMapping.

Definition at line 394 of file VelocityCorrectionScheme.cpp.

References Nektar::SolverUtils::EquationSystem::m_fields, Nektar::IncNavierStokes::m_kinvis, Nektar::IncNavierStokes::m_pressure, and Nektar::IncNavierStokes::m_velocity.

Referenced by SetUpViscousForcing().

398  {
399  NekDouble aii_dtinv = 1.0/aii_Dt;
400  int phystot = m_fields[0]->GetTotPoints();
401 
402  // Grad p
403  m_pressure->BwdTrans(m_pressure->GetCoeffs(),m_pressure->UpdatePhys());
404 
405  int nvel = m_velocity.num_elements();
406  if(nvel == 2)
407  {
408  m_pressure->PhysDeriv(m_pressure->GetPhys(), Forcing[0], Forcing[1]);
409  }
410  else
411  {
412  m_pressure->PhysDeriv(m_pressure->GetPhys(), Forcing[0],
413  Forcing[1], Forcing[2]);
414  }
415 
416  // Subtract inarray/(aii_dt) and divide by kinvis. Kinvis will
417  // need to be updated for the convected fields.
418  for(int i = 0; i < nvel; ++i)
419  {
420  Blas::Daxpy(phystot,-aii_dtinv,inarray[i],1,Forcing[i],1);
421  Blas::Dscal(phystot,1.0/m_kinvis,&(Forcing[i])[0],1);
422  }
423  }
NekDouble m_kinvis
Kinematic viscosity.
Array< OneD, int > m_velocity
int which identifies which components of m_fields contains the velocity (u,v,w);
double NekDouble
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
MultiRegions::ExpListSharedPtr m_pressure
Pointer to field holding pressure field.
void Nektar::VelocityCorrectionScheme::v_SolvePressure ( const Array< OneD, NekDouble > &  Forcing)
protectedvirtual

Solve pressure system

Reimplemented in Nektar::VCSMapping.

Definition at line 429 of file VelocityCorrectionScheme.cpp.

References Nektar::StdRegions::eFactorLambda, Nektar::IncNavierStokes::m_pressure, and Nektar::NullFlagList.

Referenced by SolvePressure(), and Nektar::VCSMapping::v_SolvePressure().

431  {
433  // Setup coefficient for equation
434  factors[StdRegions::eFactorLambda] = 0.0;
435 
436  // Solver Pressure Poisson Equation
437  m_pressure->HelmSolve(Forcing, m_pressure->UpdateCoeffs(), NullFlagList,
438  factors);
439  }
std::map< ConstFactorType, NekDouble > ConstFactorMap
Definition: StdRegions.hpp:251
MultiRegions::ExpListSharedPtr m_pressure
Pointer to field holding pressure field.
static FlagList NullFlagList
An empty flag list.
void Nektar::VelocityCorrectionScheme::v_SolveViscous ( const Array< OneD, const Array< OneD, NekDouble > > &  Forcing,
Array< OneD, Array< OneD, NekDouble > > &  outarray,
const NekDouble  aii_Dt 
)
protectedvirtual

Solve velocity system

Reimplemented in Nektar::VCSMapping.

Definition at line 444 of file VelocityCorrectionScheme.cpp.

References Nektar::StdRegions::eFactorLambda, Nektar::StdRegions::eFactorSVVCutoffRatio, Nektar::StdRegions::eFactorSVVDiffCoeff, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::IncNavierStokes::m_kinvis, Nektar::IncNavierStokes::m_nConvectiveFields, m_sVVCutoffRatio, m_sVVDiffCoeff, m_useSpecVanVisc, and Nektar::NullFlagList.

Referenced by SolveViscous(), and Nektar::VCSMapping::v_SolveViscous().

448  {
450  // Setup coefficients for equation
451  factors[StdRegions::eFactorLambda] = 1.0/aii_Dt/m_kinvis;
452  if(m_useSpecVanVisc)
453  {
456  }
457 
458  // Solve Helmholtz system and put in Physical space
459  for(int i = 0; i < m_nConvectiveFields; ++i)
460  {
461  m_fields[i]->HelmSolve(Forcing[i], m_fields[i]->UpdateCoeffs(),
462  NullFlagList, factors);
463  m_fields[i]->BwdTrans(m_fields[i]->GetCoeffs(),outarray[i]);
464  }
465  }
NekDouble m_kinvis
Kinematic viscosity.
NekDouble m_sVVDiffCoeff
Diffusion coefficient of SVV modes.
std::map< ConstFactorType, NekDouble > ConstFactorMap
Definition: StdRegions.hpp:251
int m_nConvectiveFields
Number of fields to be convected;.
NekDouble m_sVVCutoffRatio
cutt off ratio from which to start decayhing modes
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
bool m_useSpecVanVisc
bool to identify if spectral vanishing viscosity is active.
static FlagList NullFlagList
An empty flag list.
void Nektar::VelocityCorrectionScheme::v_TransCoeffToPhys ( void  )
protectedvirtual

Virtual function for transformation to physical space.

Reimplemented from Nektar::IncNavierStokes.

Definition at line 256 of file VelocityCorrectionScheme.cpp.

References Nektar::SolverUtils::EquationSystem::m_fields.

257  {
258  int nfields = m_fields.num_elements() - 1;
259  for (int k=0 ; k < nfields; ++k)
260  {
261  //Backward Transformation in physical space for time evolution
262  m_fields[k]->BwdTrans_IterPerExp(m_fields[k]->GetCoeffs(),
263  m_fields[k]->UpdatePhys());
264  }
265  }
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
void Nektar::VelocityCorrectionScheme::v_TransPhysToCoeff ( void  )
protectedvirtual

Virtual function for transformation to coefficient space.

Reimplemented from Nektar::IncNavierStokes.

Definition at line 270 of file VelocityCorrectionScheme.cpp.

References Nektar::SolverUtils::EquationSystem::m_fields.

271  {
272 
273  int nfields = m_fields.num_elements() - 1;
274  for (int k=0 ; k < nfields; ++k)
275  {
276  //Forward Transformation in physical space for time evolution
277  m_fields[k]->FwdTrans_IterPerExp(m_fields[k]->GetPhys(),m_fields[k]->UpdateCoeffs());
278  }
279  }
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.

Member Data Documentation

string Nektar::VelocityCorrectionScheme::className
static
Initial value:

Name of class.

Definition at line 58 of file VelocityCorrectionScheme.h.

Array<OneD, NekDouble> Nektar::VelocityCorrectionScheme::m_saved_aii_Dt
protected

Save aiiDt value to use as a trip to reset global matrix setup.

Definition at line 122 of file VelocityCorrectionScheme.h.

Referenced by v_InitObject().

NekDouble Nektar::VelocityCorrectionScheme::m_sVVCutoffRatio
protected

cutt off ratio from which to start decayhing modes

Definition at line 117 of file VelocityCorrectionScheme.h.

Referenced by v_GenerateSummary(), v_InitObject(), Nektar::VCSMapping::v_SolveViscous(), and v_SolveViscous().

NekDouble Nektar::VelocityCorrectionScheme::m_sVVDiffCoeff
protected

Diffusion coefficient of SVV modes.

Definition at line 119 of file VelocityCorrectionScheme.h.

Referenced by v_GenerateSummary(), v_InitObject(), Nektar::VCSMapping::v_SolveViscous(), and v_SolveViscous().

bool Nektar::VelocityCorrectionScheme::m_useHomo1DSpecVanVisc
protected

bool to identify if spectral vanishing viscosity is active.

Definition at line 113 of file VelocityCorrectionScheme.h.

Referenced by v_GenerateSummary(), and v_InitObject().

bool Nektar::VelocityCorrectionScheme::m_useSpecVanVisc
protected

bool to identify if spectral vanishing viscosity is active.

Definition at line 115 of file VelocityCorrectionScheme.h.

Referenced by v_GenerateSummary(), v_InitObject(), Nektar::VCSMapping::v_SolveViscous(), and v_SolveViscous().

StdRegions::VarCoeffMap Nektar::VelocityCorrectionScheme::m_varCoeffLap
protected

Variable Coefficient map for the Laplacian which can be activated as part of SVV or otherwise.

Definition at line 125 of file VelocityCorrectionScheme.h.