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Nektar::UnsteadyViscousBurgers Class Reference

#include <UnsteadyViscousBurgers.h>

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

virtual ~UnsteadyViscousBurgers ()
 Destructor. More...
 
- 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

 UnsteadyViscousBurgers (const LibUtilities::SessionReaderSharedPtr &pSession)
 Session reader. More...
 
void GetFluxVectorAdv (const Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &flux)
 Evaluate the flux at each solution point for the advection part. More...
 
void GetFluxVectorDiff (const int i, const int j, const Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &derivatives, Array< OneD, Array< OneD, NekDouble > > &flux)
 Evaluate the flux at each solution point for the diffusion part. More...
 
virtual 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)
 Perform the projection. More...
 
virtual void DoImplicitSolve (const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, NekDouble time, NekDouble lambda)
 Solve implicitly the diffusion term. More...
 
Array< OneD, NekDouble > & GetNormalVelocity (Array< OneD, Array< OneD, NekDouble > > &inarray)
 Get the normal velocity. More...
 
virtual void v_InitObject ()
 Initialise the object. More...
 
virtual void v_GenerateSummary (SolverUtils::SummaryList &s)
 Print Summary. More...
 
- Protected Member Functions inherited from Nektar::SolverUtils::UnsteadySystem
SOLVER_UTILS_EXPORT UnsteadySystem (const LibUtilities::SessionReaderSharedPtr &pSession)
 Initialises UnsteadySystem class members. More...
 
SOLVER_UTILS_EXPORT NekDouble MaxTimeStepEstimator ()
 Get the maximum timestep estimator for cfl control. More...
 
virtual SOLVER_UTILS_EXPORT void v_DoSolve ()
 Solves an unsteady problem. More...
 
virtual SOLVER_UTILS_EXPORT void v_DoInitialise ()
 Sets up initial conditions. More...
 
virtual SOLVER_UTILS_EXPORT void v_AppendOutput1D (Array< OneD, Array< OneD, NekDouble > > &solution1D)
 Print the solution at each solution point in a txt file. More...
 
virtual SOLVER_UTILS_EXPORT void v_NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numflux)
 
virtual SOLVER_UTILS_EXPORT void v_NumericalFlux (Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &numfluxX, Array< OneD, Array< OneD, NekDouble > > &numfluxY)
 
virtual SOLVER_UTILS_EXPORT void v_NumFluxforScalar (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &uflux)
 
virtual SOLVER_UTILS_EXPORT void v_NumFluxforVector (const Array< OneD, Array< OneD, NekDouble > > &ufield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &qfield, Array< OneD, Array< OneD, NekDouble > > &qflux)
 
virtual SOLVER_UTILS_EXPORT
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_SteadyStateCheck (int step)
 
virtual SOLVER_UTILS_EXPORT bool v_RequireFwdTrans ()
 
SOLVER_UTILS_EXPORT void CheckForRestartTime (NekDouble &time, int &nchk)
 
SOLVER_UTILS_EXPORT void SVVVarDiffCoeff (const Array< OneD, Array< OneD, NekDouble > > vel, StdRegions::VarCoeffMap &varCoeffMap)
 Evaluate the SVV diffusion coefficient according to Moura's paper where it should proportional to h time velocity. More...
 
- Protected Member Functions inherited from Nektar::SolverUtils::EquationSystem
SOLVER_UTILS_EXPORT EquationSystem (const LibUtilities::SessionReaderSharedPtr &pSession)
 Initialises EquationSystem class members. More...
 
int nocase_cmp (const std::string &s1, const std::string &s2)
 
virtual SOLVER_UTILS_EXPORT
NekDouble 
v_LinfError (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray)
 Virtual function for the L_inf error computation between fields and a given exact solution. More...
 
virtual SOLVER_UTILS_EXPORT
NekDouble 
v_L2Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray, bool Normalised=false)
 Virtual function for the L_2 error computation between fields and a given exact solution. More...
 
virtual SOLVER_UTILS_EXPORT void v_TransCoeffToPhys ()
 Virtual function for transformation to physical space. More...
 
virtual SOLVER_UTILS_EXPORT void v_TransPhysToCoeff ()
 Virtual function for transformation to coefficient space. More...
 
virtual SOLVER_UTILS_EXPORT void v_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 EvaluateFunctionExp (std::string pFieldName, Array< OneD, NekDouble > &pArray, const std::string &pFunctionName, const NekDouble &pTime=0.0, const int domain=0)
 
SOLVER_UTILS_EXPORT void EvaluateFunctionFld (std::string pFieldName, Array< OneD, NekDouble > &pArray, const std::string &pFunctionName, const NekDouble &pTime=0.0, const int domain=0)
 
SOLVER_UTILS_EXPORT void EvaluateFunctionPts (std::string pFieldName, Array< OneD, NekDouble > &pArray, const std::string &pFunctionName, const NekDouble &pTime=0.0, const int domain=0)
 
SOLVER_UTILS_EXPORT void LoadPts (std::string funcFilename, std::string filename, Nektar::LibUtilities::PtsFieldSharedPtr &outPts)
 
SOLVER_UTILS_EXPORT void SetUpBaseFields (SpatialDomains::MeshGraphSharedPtr &mesh)
 
SOLVER_UTILS_EXPORT void ImportFldBase (std::string pInfile, SpatialDomains::MeshGraphSharedPtr pGraph)
 
virtual SOLVER_UTILS_EXPORT void v_Output (void)
 
virtual SOLVER_UTILS_EXPORT
MultiRegions::ExpListSharedPtr 
v_GetPressure (void)
 
virtual SOLVER_UTILS_EXPORT void v_ExtraFldOutput (std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
 

Protected Attributes

bool m_useSpecVanVisc
 
bool m_useSpecVanViscVarDiff
 
NekDouble m_sVVCutoffRatio
 
NekDouble m_sVVDiffCoeff
 
SolverUtils::RiemannSolverSharedPtr m_riemannSolver
 
SolverUtils::DiffusionSharedPtr m_diffusion
 
Array< OneD, NekDoublem_traceVn
 
StdRegions::VarCoeffMap m_varCoeffLap
 Variable Coefficient map for the Laplacian which can be activated as part of SVV or otherwise. More...
 
int m_planeNumber
 
std::vector
< SolverUtils::ForcingSharedPtr
m_forcing
 Forcing terms. 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...
 
int m_nanSteps
 
LibUtilities::TimeIntegrationWrapperSharedPtr m_intScheme
 Wrapper to the time integration scheme. More...
 
LibUtilities::TimeIntegrationSchemeOperators m_ode
 The time integration scheme operators to use. More...
 
LibUtilities::TimeIntegrationSolutionSharedPtr m_intSoln
 
NekDouble m_epsilon
 
bool m_explicitDiffusion
 Indicates if explicit or implicit treatment of diffusion is used. More...
 
bool m_explicitAdvection
 Indicates if explicit or implicit treatment of advection is used. More...
 
bool m_explicitReaction
 Indicates if explicit or implicit treatment of reaction is used. More...
 
bool m_homoInitialFwd
 Flag to determine if simulation should start in homogeneous forward transformed state. More...
 
std::vector< int > m_intVariables
 
std::vector< 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,
FieldUtils::Interpolator
m_interpolators
 Map of interpolator objects. More...
 
std::map< std::string,
std::pair< std::string,
LibUtilities::PtsFieldSharedPtr > > 
m_loadedPtsFields
 pts fields we already read from disk: {funcFilename: (filename, ptsfield)} More...
 
std::map< std::string,
std::pair< std::string,
loadedFldField > > 
m_loadedFldFields
 
Array< OneD,
MultiRegions::ExpListSharedPtr
m_fields
 Array holding all dependent variables. More...
 
Array< OneD,
MultiRegions::ExpListSharedPtr
m_base
 Base fields. More...
 
Array< OneD,
MultiRegions::ExpListSharedPtr
m_derivedfields
 Array holding all dependent variables. More...
 
SpatialDomains::BoundaryConditionsSharedPtr m_boundaryConditions
 Pointer to boundary conditions object. More...
 
SpatialDomains::MeshGraphSharedPtr m_graph
 Pointer to graph defining mesh. More...
 
std::string m_sessionName
 Name of the session. More...
 
NekDouble m_time
 Current time of simulation. More...
 
int m_initialStep
 Number of the step where the simulation should begin. More...
 
NekDouble m_fintime
 Finish time of the simulation. More...
 
NekDouble m_timestep
 Time step size. More...
 
NekDouble m_lambda
 Lambda constant in real system if one required. More...
 
NekDouble m_checktime
 Time between checkpoints. More...
 
int m_nchk
 Number of checkpoints written so far. More...
 
int m_steps
 Number of steps to take. More...
 
int m_checksteps
 Number of steps between checkpoints. More...
 
int m_spacedim
 Spatial dimension (>= expansion dim). More...
 
int m_expdim
 Expansion dimension. More...
 
bool m_singleMode
 Flag to determine if single homogeneous mode is used. More...
 
bool m_halfMode
 Flag to determine if half homogeneous mode is used. More...
 
bool m_multipleModes
 Flag to determine if use multiple homogenenous modes are used. More...
 
bool m_useFFT
 Flag to determine if FFT is used for homogeneous transform. More...
 
bool m_homogen_dealiasing
 Flag to determine if dealiasing is used for homogeneous simulations. More...
 
bool m_specHP_dealiasing
 Flag to determine if dealisising is usde for the Spectral/hp element discretisation. More...
 
enum MultiRegions::ProjectionType m_projectionType
 Type of projection; e.g continuous or discontinuous. More...
 
Array< OneD, Array< OneD,
NekDouble > > 
m_traceNormals
 Array holding trace normals for DG simulations in the forwards direction. More...
 
Array< OneD, Array< OneD,
Array< OneD, NekDouble > > > 
m_gradtan
 1 x nvariable x nq More...
 
Array< OneD, Array< OneD,
Array< OneD, NekDouble > > > 
m_tanbasis
 2 x m_spacedim x nq More...
 
Array< OneD, bool > m_checkIfSystemSingular
 Flag to indicate if the fields should be checked for singularity. More...
 
LibUtilities::FieldMetaDataMap m_fieldMetaDataMap
 Map to identify relevant solver info to dump in output fields. More...
 
int m_NumQuadPointsError
 Number of Quadrature points used to work out the error. More...
 
enum HomogeneousType m_HomogeneousType
 
NekDouble m_LhomX
 physical length in X direction (if homogeneous) More...
 
NekDouble m_LhomY
 physical length in Y direction (if homogeneous) More...
 
NekDouble m_LhomZ
 physical length in Z direction (if homogeneous) More...
 
int m_npointsX
 number of points in X direction (if homogeneous) More...
 
int m_npointsY
 number of points in Y direction (if homogeneous) More...
 
int m_npointsZ
 number of points in Z direction (if homogeneous) More...
 
int m_HomoDirec
 number of homogenous directions More...
 

Private Attributes

NekDouble m_waveFreq
 
NekDouble m_epsilon
 

Friends

class MemoryManager< UnsteadyViscousBurgers >
 

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 49 of file UnsteadyViscousBurgers.h.

Constructor & Destructor Documentation

Nektar::UnsteadyViscousBurgers::~UnsteadyViscousBurgers ( )
virtual

Destructor.

Unsteady linear advection diffusion equation destructor.

Definition at line 174 of file UnsteadyViscousBurgers.cpp.

175  {
176  }
Nektar::UnsteadyViscousBurgers::UnsteadyViscousBurgers ( const LibUtilities::SessionReaderSharedPtr pSession)
protected

Session reader.

Definition at line 50 of file UnsteadyViscousBurgers.cpp.

References m_planeNumber.

52  : UnsteadySystem(pSession),
53  AdvectionSystem(pSession),
55  {
56  m_planeNumber = 0;
57  }
StdRegions::VarCoeffMap m_varCoeffLap
Variable Coefficient map for the Laplacian which can be activated as part of SVV or otherwise...
SOLVER_UTILS_EXPORT AdvectionSystem(const LibUtilities::SessionReaderSharedPtr &pSession)
SOLVER_UTILS_EXPORT UnsteadySystem(const LibUtilities::SessionReaderSharedPtr &pSession)
Initialises UnsteadySystem class members.
static VarCoeffMap NullVarCoeffMap
Definition: StdRegions.hpp:228

Member Function Documentation

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

Creates an instance of this class.

Definition at line 55 of file UnsteadyViscousBurgers.h.

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

56  {
59  AllocateSharedPtr(pSession);
60  p->InitObject();
61  return p;
62  }
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::UnsteadyViscousBurgers::DoImplicitSolve ( const Array< OneD, const Array< OneD, NekDouble > > &  inarray,
Array< OneD, Array< OneD, NekDouble > > &  outarray,
NekDouble  time,
NekDouble  lambda 
)
protectedvirtual

Solve implicitly the diffusion term.

Definition at line 317 of file UnsteadyViscousBurgers.cpp.

References Nektar::StdRegions::eFactorLambda, Nektar::StdRegions::eFactorSVVCutoffRatio, Nektar::StdRegions::eFactorSVVDiffCoeff, m_epsilon, Nektar::SolverUtils::EquationSystem::m_fields, m_sVVCutoffRatio, m_sVVDiffCoeff, m_useSpecVanVisc, m_useSpecVanViscVarDiff, m_varCoeffLap, Nektar::NullFlagList, Nektar::SolverUtils::EquationSystem::SetBoundaryConditions(), Vmath::Smul(), and Nektar::SolverUtils::UnsteadySystem::SVVVarDiffCoeff().

Referenced by v_InitObject().

322  {
323  int nvariables = inarray.num_elements();
324  int nq = m_fields[0]->GetNpoints();
325 
327  factors[StdRegions::eFactorLambda] = 1.0/lambda/m_epsilon;
328 
329  if(m_useSpecVanVisc)
330  {
333  }
334 
335  Array<OneD, Array< OneD, NekDouble> > F(nvariables);
336  F[0] = Array<OneD, NekDouble> (nq*nvariables);
337 
338  for (int n = 1; n < nvariables; ++n)
339  {
340  F[n] = F[n-1] + nq;
341  }
342 
343  // We solve ( \nabla^2 - HHlambda ) Y[i] = rhs [i]
344  // inarray = input: \hat{rhs} -> output: \hat{Y}
345  // outarray = output: nabla^2 \hat{Y}
346  // where \hat = modal coeffs
347  for (int i = 0; i < nvariables; ++i)
348  {
349  // Multiply 1.0/timestep/lambda
350  Vmath::Smul(nq, -factors[StdRegions::eFactorLambda],
351  inarray[i], 1, F[i], 1);
352  }
353 
354  //Setting boundary conditions
355  SetBoundaryConditions(time);
356 
358  {
359  static int cnt = 0;
360 
361  if(cnt %10 == 0)
362  {
363  Array<OneD, Array<OneD, NekDouble> > vel(m_fields.num_elements());
364  for(int i = 0; i < m_fields.num_elements(); ++i)
365  {
366  m_fields[i]->ClearGlobalLinSysManager();
367  vel[i] = m_fields[i]->UpdatePhys();
368  }
370  }
371  ++cnt;
372  }
373  for (int i = 0; i < nvariables; ++i)
374  {
375  // Solve a system of equations with Helmholtz solver
376  m_fields[i]->HelmSolve(F[i], m_fields[i]->UpdateCoeffs(),
377  NullFlagList, factors, m_varCoeffLap);
378 
379  m_fields[i]->BwdTrans(m_fields[i]->GetCoeffs(), outarray[i]);
380  }
381  }
std::map< ConstFactorType, NekDouble > ConstFactorMap
Definition: StdRegions.hpp:252
StdRegions::VarCoeffMap m_varCoeffLap
Variable Coefficient map for the Laplacian which can be activated as part of SVV or otherwise...
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 t...
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:213
SOLVER_UTILS_EXPORT void SetBoundaryConditions(NekDouble time)
Evaluates the boundary conditions at the given time.
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
static FlagList NullFlagList
An empty flag list.
void Nektar::UnsteadyViscousBurgers::DoOdeProjection ( const Array< OneD, const Array< OneD, NekDouble > > &  inarray,
Array< OneD, Array< OneD, NekDouble > > &  outarray,
const NekDouble  time 
)
protected

Perform the projection.

Compute the projection for the unsteady advection diffusion problem.

Parameters
inarrayGiven fields.
outarrayCalculated solution.
timeTime.

Definition at line 275 of file UnsteadyViscousBurgers.cpp.

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

Referenced by v_InitObject().

279  {
280  int i;
281  int nvariables = inarray.num_elements();
282  SetBoundaryConditions(time);
283  switch(m_projectionType)
284  {
286  {
287  // Just copy over array
288  int npoints = GetNpoints();
289 
290  for(i = 0; i < nvariables; ++i)
291  {
292  Vmath::Vcopy(npoints, inarray[i], 1, outarray[i], 1);
293  }
294  break;
295  }
298  {
299  // Do nothing for the moment.
300  }
301  default:
302  {
303  ASSERTL0(false, "Unknown projection scheme");
304  break;
305  }
306  }
307  }
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:198
enum MultiRegions::ProjectionType m_projectionType
Type of projection; e.g continuous or discontinuous.
SOLVER_UTILS_EXPORT void SetBoundaryConditions(NekDouble time)
Evaluates the boundary conditions at the given time.
SOLVER_UTILS_EXPORT int GetNpoints()
void Vcopy(int n, const T *x, const int incx, T *y, const int incy)
Definition: Vmath.cpp:1061
void Nektar::UnsteadyViscousBurgers::DoOdeRhs ( const Array< OneD, const Array< OneD, NekDouble > > &  inarray,
Array< OneD, Array< OneD, NekDouble > > &  outarray,
const NekDouble  time 
)
protectedvirtual

Compute the RHS.

Compute the right-hand side for the unsteady linear advection diffusion problem.

Parameters
inarrayGiven fields.
outarrayCalculated solution.
timeTime.

Definition at line 218 of file UnsteadyViscousBurgers.cpp.

References Nektar::MultiRegions::eDiscontinuous, Nektar::SolverUtils::EquationSystem::GetNpoints(), Nektar::SolverUtils::AdvectionSystem::m_advObject, m_diffusion, Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, Nektar::SolverUtils::EquationSystem::m_projectionType, Vmath::Neg(), and Vmath::Vadd().

Referenced by v_InitObject().

222  {
223  // Number of fields (variables of the problem)
224  int nVariables = inarray.num_elements();
225 
226  // Number of solution points
227  int nSolutionPts = GetNpoints();
228 
229  Array<OneD, Array<OneD, NekDouble> > outarrayDiff(nVariables);
230 
231  for (int i = 0; i < nVariables; ++i)
232  {
233  outarrayDiff[i] = Array<OneD, NekDouble>(nSolutionPts, 0.0);
234  }
235 
236  // RHS computation using the new advection base class
237  m_advObject->Advect(nVariables, m_fields, inarray,
238  inarray, outarray, time);
239 
240  // Negate the RHS
241  for (int i = 0; i < nVariables; ++i)
242  {
243  Vmath::Neg(nSolutionPts, outarray[i], 1);
244  }
245 
246  // No explicit diffusion for CG
248  {
249  m_diffusion->Diffuse(nVariables, m_fields, inarray, outarrayDiff);
250 
251  for (int i = 0; i < nVariables; ++i)
252  {
253  Vmath::Vadd(nSolutionPts, &outarray[i][0], 1,
254  &outarrayDiff[i][0], 1, &outarray[i][0], 1);
255  }
256  }
257 
258  // Add forcing terms
259  std::vector<SolverUtils::ForcingSharedPtr>::const_iterator x;
260  for (x = m_forcing.begin(); x != m_forcing.end(); ++x)
261  {
262  // set up non-linear terms
263  (*x)->Apply(m_fields, inarray, outarray, time);
264  }
265  }
SolverUtils::AdvectionSharedPtr m_advObject
Advection term.
enum MultiRegions::ProjectionType m_projectionType
Type of projection; e.g continuous or discontinuous.
void Neg(int n, T *x, const int incx)
Negate x = -x.
Definition: Vmath.cpp:396
SolverUtils::DiffusionSharedPtr m_diffusion
SOLVER_UTILS_EXPORT int GetNpoints()
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
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:299
std::vector< SolverUtils::ForcingSharedPtr > m_forcing
Forcing terms.
void Nektar::UnsteadyViscousBurgers::GetFluxVectorAdv ( const Array< OneD, Array< OneD, NekDouble > > &  physfield,
Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &  flux 
)
protected

Evaluate the flux at each solution point for the advection part.

Return the flux vector for the advection part.

Parameters
physfieldFields.
fluxResulting flux.

Definition at line 389 of file UnsteadyViscousBurgers.cpp.

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

Referenced by v_InitObject().

392  {
393 
394  const int nq = m_fields[0]->GetNpoints();
395 
396  for (int i = 0; i < flux.num_elements(); ++i)
397  {
398  for (int j = 0; j < flux[0].num_elements(); ++j)
399  {
400  Vmath::Vmul(nq, physfield[i], 1, physfield[j], 1,
401  flux[i][j], 1);
402  }
403  }
404  }
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
void Vmul(int n, const T *x, const int incx, const T *y, const int incy, T *z, const int incz)
Multiply vector z = x*y.
Definition: Vmath.cpp:183
void Nektar::UnsteadyViscousBurgers::GetFluxVectorDiff ( const int  i,
const int  j,
const Array< OneD, Array< OneD, NekDouble > > &  physfield,
Array< OneD, Array< OneD, NekDouble > > &  derivatives,
Array< OneD, Array< OneD, NekDouble > > &  flux 
)
protected

Evaluate the flux at each solution point for the diffusion part.

Return the flux vector for the diffusion part.

Parameters
iEquation number.
jSpatial direction.
physfieldFields.
derivativesFirst order derivatives.
fluxResulting flux.

Definition at line 415 of file UnsteadyViscousBurgers.cpp.

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

Referenced by v_InitObject().

421  {
422  for (int k = 0; k < flux.num_elements(); ++k)
423  {
424  Vmath::Zero(GetNpoints(), flux[k], 1);
425  }
426  Vmath::Vcopy(GetNpoints(), physfield[i], 1, flux[j], 1);
427  }
SOLVER_UTILS_EXPORT int GetNpoints()
void Zero(int n, T *x, const int incx)
Zero vector.
Definition: Vmath.cpp:373
void Vcopy(int n, const T *x, const int incx, T *y, const int incy)
Definition: Vmath.cpp:1061
Array< OneD, NekDouble > & Nektar::UnsteadyViscousBurgers::GetNormalVelocity ( Array< OneD, Array< OneD, NekDouble > > &  inarray)
protected

Get the normal velocity.

Get the normal velocity for the unsteady linear advection diffusion equation.

Definition at line 182 of file UnsteadyViscousBurgers.cpp.

References Nektar::SolverUtils::EquationSystem::GetTraceNpoints(), Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_traceNormals, m_traceVn, Vmath::Vvtvp(), and Vmath::Zero().

184  {
185  // Number of trace (interface) points
186  int i;
187  int nTracePts = GetTraceNpoints();
188 
189  // Auxiliary variable to compute the normal velocity
190  Array<OneD, NekDouble> tmp(nTracePts);
191  m_traceVn = Array<OneD, NekDouble>(nTracePts, 0.0);
192 
193  // Reset the normal velocity
194  Vmath::Zero(nTracePts, m_traceVn, 1);
195 
196  for (i = 0; i < inarray.num_elements(); ++i)
197  {
198  m_fields[0]->ExtractTracePhys(inarray[i], tmp);
199 
200  Vmath::Vvtvp(nTracePts,
201  m_traceNormals[i], 1,
202  tmp, 1,
203  m_traceVn, 1,
204  m_traceVn, 1);
205  }
206 
207  return m_traceVn;
208  }
void Vvtvp(int n, const T *w, const int incw, const T *x, const int incx, const T *y, const int incy, T *z, const int incz)
vvtvp (vector times vector plus vector): z = w*x + y
Definition: Vmath.cpp:442
Array< OneD, NekDouble > m_traceVn
Array< OneD, Array< OneD, NekDouble > > m_traceNormals
Array holding trace normals for DG simulations in the forwards direction.
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
SOLVER_UTILS_EXPORT int GetTraceNpoints()
void Zero(int n, T *x, const int incx)
Zero vector.
Definition: Vmath.cpp:373
void Nektar::UnsteadyViscousBurgers::v_GenerateSummary ( SolverUtils::SummaryList s)
protectedvirtual

Print Summary.

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 429 of file UnsteadyViscousBurgers.cpp.

References Nektar::SolverUtils::AddSummaryItem(), m_sVVCutoffRatio, m_sVVDiffCoeff, m_useSpecVanVisc, and Nektar::SolverUtils::UnsteadySystem::v_GenerateSummary().

431  {
433  if(m_useSpecVanVisc)
434  {
435  stringstream ss;
436  ss << "SVV (cut off = " << m_sVVCutoffRatio
437  << ", coeff = " << m_sVVDiffCoeff << ")";
438  AddSummaryItem(s, "Smoothing", ss.str());
439  }
440  }
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
void Nektar::UnsteadyViscousBurgers::v_InitObject ( )
protectedvirtual

Initialise the object.

Initialisation object for the unsteady linear advection diffusion equation.

Reimplemented from Nektar::SolverUtils::AdvectionSystem.

Definition at line 63 of file UnsteadyViscousBurgers.cpp.

References ASSERTL0, Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineImplicitSolve(), Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineOdeRhs(), Nektar::LibUtilities::TimeIntegrationSchemeOperators::DefineProjection(), DoImplicitSolve(), DoOdeProjection(), DoOdeRhs(), Nektar::MultiRegions::eDiscontinuous, Nektar::MultiRegions::eGalerkin, Nektar::MultiRegions::eMixed_CG_Discontinuous, Nektar::SolverUtils::GetAdvectionFactory(), Nektar::SolverUtils::GetDiffusionFactory(), GetFluxVectorAdv(), GetFluxVectorDiff(), Nektar::SolverUtils::GetRiemannSolverFactory(), Nektar::SolverUtils::Forcing::Load(), Nektar::SolverUtils::AdvectionSystem::m_advObject, m_diffusion, m_epsilon, Nektar::SolverUtils::UnsteadySystem::m_explicitDiffusion, Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, Nektar::SolverUtils::UnsteadySystem::m_homoInitialFwd, Nektar::SolverUtils::UnsteadySystem::m_ode, Nektar::SolverUtils::EquationSystem::m_projectionType, m_riemannSolver, Nektar::SolverUtils::EquationSystem::m_session, m_sVVCutoffRatio, m_sVVDiffCoeff, m_useSpecVanVisc, m_useSpecVanViscVarDiff, m_varCoeffLap, m_waveFreq, Nektar::SolverUtils::UnsteadySystem::SVVVarDiffCoeff(), and Nektar::SolverUtils::AdvectionSystem::v_InitObject().

64  {
66 
67  m_session->LoadParameter("wavefreq", m_waveFreq, 0.0);
68  m_session->LoadParameter("epsilon", m_epsilon, 0.0);
69 
70  m_session->MatchSolverInfo(
71  "SpectralVanishingViscosity", "True", m_useSpecVanVisc, false);
72  m_session->MatchSolverInfo(
73  "SpectralVanishingViscosity", "VarDiff", m_useSpecVanViscVarDiff, false);
75  {
76  m_useSpecVanVisc = true;
77  }
78 
80  {
81  m_session->LoadParameter("SVVCutoffRatio",m_sVVCutoffRatio,0.75);
82  m_session->LoadParameter("SVVDiffCoeff",m_sVVDiffCoeff,0.1);
83  }
84 
85  // Type of advection and diffusion classes to be used
86  switch(m_projectionType)
87  {
88  // Discontinuous field
90  {
91  ASSERTL0(false,"Need to implement for DG");
92  // Do not forwards transform initial condition
93  m_homoInitialFwd = false;
94 
95  // Advection term
96  string advName;
97  string riemName;
98  m_session->LoadSolverInfo("AdvectionType", advName, "WeakDG");
100  CreateInstance(advName, advName);
101  m_advObject->SetFluxVector(&UnsteadyViscousBurgers::
102  GetFluxVectorAdv, this);
103  m_session->LoadSolverInfo("UpwindType", riemName, "Upwind");
105  CreateInstance(riemName);
106  m_advObject->SetRiemannSolver(m_riemannSolver);
107  m_advObject->InitObject (m_session, m_fields);
108 
109  // Diffusion term
110  std::string diffName;
111  m_session->LoadSolverInfo("DiffusionType", diffName, "LDG");
113  CreateInstance(diffName, diffName);
114  m_diffusion->SetFluxVector(&UnsteadyViscousBurgers::
115  GetFluxVectorDiff, this);
116  m_diffusion->InitObject(m_session, m_fields);
117  break;
118  }
119  // Continuous field
122  {
123  // Advection term
124  std::string advName;
125  m_session->LoadSolverInfo("AdvectionType", advName,
126  "NonConservative");
128  CreateInstance(advName, advName);
129  m_advObject->SetFluxVector(&UnsteadyViscousBurgers::
130  GetFluxVectorAdv, this);
131 
133  {
134  Array<OneD, Array<OneD, NekDouble> > vel(m_fields.num_elements());
135  for(int i = 0; i < m_fields.num_elements(); ++i)
136  {
137  vel[i] = m_fields[i]->UpdatePhys();
138  }
140  }
141 
142  // In case of Galerkin explicit diffusion gives an error
144  {
145  ASSERTL0(false, "Explicit Galerkin diffusion not set up.");
146  }
147  // In case of Galerkin implicit diffusion: do nothing
148  break;
149  }
150  default:
151  {
152  ASSERTL0(false, "Unsupported projection type.");
153  break;
154  }
155  }
156 
157  // Forcing terms
159  m_fields.num_elements());
160 
163 
165  m_explicitDiffusion == 1)
166  {
168  }
169  }
void GetFluxVectorDiff(const int i, const int j, const Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, NekDouble > > &derivatives, Array< OneD, Array< OneD, NekDouble > > &flux)
Evaluate the flux at each solution point for the diffusion part.
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:198
SolverUtils::RiemannSolverSharedPtr m_riemannSolver
bool m_homoInitialFwd
Flag to determine if simulation should start in homogeneous forward transformed state.
SolverUtils::AdvectionSharedPtr m_advObject
Advection term.
bool m_explicitDiffusion
Indicates if explicit or implicit treatment of diffusion is used.
void DefineImplicitSolve(FuncPointerT func, ObjectPointerT obj)
LibUtilities::TimeIntegrationSchemeOperators m_ode
The time integration scheme operators to use.
DiffusionFactory & GetDiffusionFactory()
Definition: Diffusion.cpp:42
enum MultiRegions::ProjectionType m_projectionType
Type of projection; e.g continuous or discontinuous.
StdRegions::VarCoeffMap m_varCoeffLap
Variable Coefficient map for the Laplacian which can be activated as part of SVV or otherwise...
static SOLVER_UTILS_EXPORT std::vector< ForcingSharedPtr > Load(const LibUtilities::SessionReaderSharedPtr &pSession, const Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const unsigned int &pNumForcingFields=0)
Definition: Forcing.cpp:86
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 t...
void DefineProjection(FuncPointerT func, ObjectPointerT obj)
void DefineOdeRhs(FuncPointerT func, ObjectPointerT obj)
UnsteadyViscousBurgers(const LibUtilities::SessionReaderSharedPtr &pSession)
Session reader.
RiemannSolverFactory & GetRiemannSolverFactory()
void GetFluxVectorAdv(const Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &flux)
Evaluate the flux at each solution point for the advection part.
void DoOdeProjection(const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
Perform the projection.
AdvectionFactory & GetAdvectionFactory()
Gets the factory for initialising advection objects.
Definition: Advection.cpp:46
virtual void DoOdeRhs(const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble time)
Compute the RHS.
SolverUtils::DiffusionSharedPtr m_diffusion
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
LibUtilities::SessionReaderSharedPtr m_session
The session reader.
virtual void DoImplicitSolve(const Array< OneD, const Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, NekDouble time, NekDouble lambda)
Solve implicitly the diffusion term.
virtual SOLVER_UTILS_EXPORT void v_InitObject()
Init object for UnsteadySystem class.
std::vector< SolverUtils::ForcingSharedPtr > m_forcing
Forcing terms.

Friends And Related Function Documentation

friend class MemoryManager< UnsteadyViscousBurgers >
friend

Definition at line 52 of file UnsteadyViscousBurgers.h.

Member Data Documentation

string Nektar::UnsteadyViscousBurgers::className
static
Initial value:

Name of class.

Definition at line 64 of file UnsteadyViscousBurgers.h.

SolverUtils::DiffusionSharedPtr Nektar::UnsteadyViscousBurgers::m_diffusion
protected

Definition at line 75 of file UnsteadyViscousBurgers.h.

Referenced by DoOdeRhs(), and v_InitObject().

NekDouble Nektar::UnsteadyViscousBurgers::m_epsilon
private

Definition at line 135 of file UnsteadyViscousBurgers.h.

Referenced by DoImplicitSolve(), and v_InitObject().

std::vector<SolverUtils::ForcingSharedPtr> Nektar::UnsteadyViscousBurgers::m_forcing
protected

Forcing terms.

Definition at line 85 of file UnsteadyViscousBurgers.h.

Referenced by DoOdeRhs(), and v_InitObject().

int Nektar::UnsteadyViscousBurgers::m_planeNumber
protected

Definition at line 82 of file UnsteadyViscousBurgers.h.

Referenced by UnsteadyViscousBurgers().

SolverUtils::RiemannSolverSharedPtr Nektar::UnsteadyViscousBurgers::m_riemannSolver
protected

Definition at line 74 of file UnsteadyViscousBurgers.h.

Referenced by v_InitObject().

NekDouble Nektar::UnsteadyViscousBurgers::m_sVVCutoffRatio
protected

Definition at line 72 of file UnsteadyViscousBurgers.h.

Referenced by DoImplicitSolve(), v_GenerateSummary(), and v_InitObject().

NekDouble Nektar::UnsteadyViscousBurgers::m_sVVDiffCoeff
protected

Definition at line 73 of file UnsteadyViscousBurgers.h.

Referenced by DoImplicitSolve(), v_GenerateSummary(), and v_InitObject().

Array<OneD, NekDouble> Nektar::UnsteadyViscousBurgers::m_traceVn
protected

Definition at line 76 of file UnsteadyViscousBurgers.h.

Referenced by GetNormalVelocity().

bool Nektar::UnsteadyViscousBurgers::m_useSpecVanVisc
protected

Definition at line 70 of file UnsteadyViscousBurgers.h.

Referenced by DoImplicitSolve(), v_GenerateSummary(), and v_InitObject().

bool Nektar::UnsteadyViscousBurgers::m_useSpecVanViscVarDiff
protected

Definition at line 71 of file UnsteadyViscousBurgers.h.

Referenced by DoImplicitSolve(), and v_InitObject().

StdRegions::VarCoeffMap Nektar::UnsteadyViscousBurgers::m_varCoeffLap
protected

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

Definition at line 79 of file UnsteadyViscousBurgers.h.

Referenced by DoImplicitSolve(), and v_InitObject().

NekDouble Nektar::UnsteadyViscousBurgers::m_waveFreq
private

Definition at line 134 of file UnsteadyViscousBurgers.h.

Referenced by v_InitObject().