#include <AcousticSystem.h>

Inheritance diagram for Nektar::AcousticSystem:

Public Member Functions
virtual	~AcousticSystem ()
	Destructor. More...

Public Member Functions inherited from Nektar::SolverUtils::AdvectionSystem
SOLVER_UTILS_EXPORT	AdvectionSystem (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)

virtual SOLVER_UTILS_EXPORT	~AdvectionSystem ()

SOLVER_UTILS_EXPORT AdvectionSharedPtr	GetAdvObject ()
	Returns the advection object held by this instance. More...

SOLVER_UTILS_EXPORT Array< OneD, NekDouble >	GetElmtCFLVals (void)

SOLVER_UTILS_EXPORT NekDouble	GetCFLEstimate (int &elmtid)

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 >
std::shared_ptr< T >	as ()

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

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

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

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

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

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

SOLVER_UTILS_EXPORT SessionFunctionSharedPtr	GetFunction (std::string name, const MultiRegions::ExpListSharedPtr &field=MultiRegions::NullExpListSharedPtr, bool cache=false)
	Get a SessionFunction by name. More...

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

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

SOLVER_UTILS_EXPORT NekDouble	L2Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln, bool Normalised=false)
	Compute the L2 error between fields and a given exact solution. More...

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

SOLVER_UTILS_EXPORT Array< OneD, NekDouble >	ErrorExtraPoints (unsigned int field)
	Compute error (L2 and L_inf) over an larger set of quadrature points return [L2 Linf]. More...

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

SOLVER_UTILS_EXPORT void	Checkpoint_Output (const int n, MultiRegions::ExpListSharedPtr &field, std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
	Write checkpoint file of custom data fields. More...

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

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

SOLVER_UTILS_EXPORT void	WriteFld (const std::string &outname, MultiRegions::ExpListSharedPtr &field, std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
	Write input fields to the given filename. More...

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

SOLVER_UTILS_EXPORT void	ImportFldToMultiDomains (const std::string &infile, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const int ndomains)
	Input field data from the given file to multiple domains. More...

SOLVER_UTILS_EXPORT void	ImportFld (const std::string &infile, std::vector< std::string > &fieldStr, Array< OneD, Array< OneD, NekDouble > > &coeffs)
	Output a field. Input field data into array from the given file. More...

SOLVER_UTILS_EXPORT void	ImportFld (const std::string &infile, MultiRegions::ExpListSharedPtr &pField, std::string &pFieldName)
	Output a field. Input field data into ExpList from the given file. More...

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

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

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

SOLVER_UTILS_EXPORT NekDouble	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	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	SetModifiedBasis (const bool modbasis)

SOLVER_UTILS_EXPORT int	GetCheckpointNumber ()

SOLVER_UTILS_EXPORT void	SetCheckpointNumber (int num)

SOLVER_UTILS_EXPORT int	GetCheckpointSteps ()

SOLVER_UTILS_EXPORT void	SetCheckpointSteps (int num)

SOLVER_UTILS_EXPORT void	SetTime (const NekDouble time)

SOLVER_UTILS_EXPORT void	SetInitialStep (const int step)

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

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

Protected Member Functions
	AcousticSystem (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)
	Initialises UnsteadySystem class members. More...

virtual void	v_InitObject ()
	Initialization object for the AcousticSystem class. More...

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

void	DoOdeProjection (const Array< OneD, const Array< OneD, NekDouble >> &inarray, Array< OneD, Array< OneD, NekDouble >> &outarray, const NekDouble time)
	Compute the projection and call the method for imposing the boundary conditions in case of discontinuous projection. More...

virtual void	v_GetFluxVector (const Array< OneD, Array< OneD, NekDouble >> &physfield, Array< OneD, Array< OneD, Array< OneD, NekDouble >>> &flux)=0

virtual void	v_AddLinTerm (const Array< OneD, const Array< OneD, NekDouble >> &inarray, Array< OneD, Array< OneD, NekDouble >> &outarray)

virtual bool	v_PreIntegrate (int step)
	v_PreIntegrate More...

virtual void	v_Output ()

virtual Array< OneD, NekDouble >	v_GetMaxStdVelocity ()
	Compute the advection velocity in the standard space for each element of the expansion. More...

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

const Array< OneD, const Array< OneD, NekDouble > > &	GetNormals ()
	Get the normal vectors. More...

const Array< OneD, const Array< OneD, NekDouble > > &	GetVecLocs ()
	Get the locations of the components of the directed fields within the fields array. More...

const Array< OneD, const Array< OneD, NekDouble > > &	GetBasefieldFwdBwd ()
	Get the baseflow field. More...

Protected Member Functions inherited from Nektar::SolverUtils::AdvectionSystem
virtual SOLVER_UTILS_EXPORT bool	v_PostIntegrate (int step)

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

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

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

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

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

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

virtual SOLVER_UTILS_EXPORT 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_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, const SpatialDomains::MeshGraphSharedPtr &pGraph)
	Initialises EquationSystem class members. More...

virtual SOLVER_UTILS_EXPORT NekDouble	v_LinfError (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray)
	Virtual function for the L_inf error computation between fields and a given exact solution. More...

virtual SOLVER_UTILS_EXPORT NekDouble	v_L2Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray, bool Normalised=false)
	Virtual function for the L_2 error computation between fields and a given exact solution. More...

virtual SOLVER_UTILS_EXPORT 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)

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
int	m_ip
	indices of the fields More...

int	m_irho

int	m_iu

bool	m_conservative
	we are dealing with a conservative formualtion More...

SolverUtils::CouplingSharedPtr	m_coupling

SolverUtils::AdvectionSharedPtr	m_advection

std::vector< SolverUtils::ForcingSharedPtr >	m_forcing

SolverUtils::RiemannSolverSharedPtr	m_riemannSolver

Array< OneD, Array< OneD, NekDouble > >	m_bfFwdBwd

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

Array< OneD, Array< OneD, NekDouble > >	m_bf

std::vector< std::string >	m_bfNames

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_abortSteps
	Number of steps between checks for abort conditions. More...

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

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

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

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

std::ofstream	m_errFile

std::vector< int >	m_intVariables

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

NekDouble	m_filterTimeWarning
	Number of time steps between outputting status information. More...

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

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

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

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

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

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

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

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

NekDouble	m_time
	Current time of simulation. More...

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

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

NekDouble	m_timestep
	Time step size. More...

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

NekDouble	m_checktime
	Time between checkpoints. More...

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, 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 Member Functions
NekDouble	GetCFLEstimate ()

void	SetBoundaryConditions (Array< OneD, Array< OneD, NekDouble >> &physarray, NekDouble time)
	Apply the Boundary Conditions to the AcousticSystem equations. More...

virtual void	v_WallBC (int bcRegion, int cnt, Array< OneD, Array< OneD, NekDouble >> &Fwd, Array< OneD, Array< OneD, NekDouble >> &physarray)
	Wall boundary conditions for the AcousticSystem equations. More...

virtual void	v_RiemannInvariantBC (int bcRegion, int cnt, Array< OneD, Array< OneD, NekDouble >> &Fwd, Array< OneD, Array< OneD, NekDouble >> &BfFwd, Array< OneD, Array< OneD, NekDouble >> &physarray)=0

virtual void	v_WhiteNoiseBC (int bcRegion, int cnt, Array< OneD, Array< OneD, NekDouble >> &Fwd, Array< OneD, Array< OneD, NekDouble >> &BfFwd, Array< OneD, Array< OneD, NekDouble >> &physarray)
	Wall boundary conditions for the AcousticSystem equations. More...

void	CopyBoundaryTrace (const Array< OneD, NekDouble > &Fwd, Array< OneD, NekDouble > &Bwd)

void	UpdateBasefieldFwdBwd ()

Private Attributes
std::map< int, boost::mt19937 >	m_rng

NekDouble	m_whiteNoiseBC_lastUpdate

NekDouble	m_whiteNoiseBC_p

Friends
class	MemoryManager< AcousticSystem >

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...

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

Detailed Description

Definition at line 60 of file AcousticSystem.h.

Constructor & Destructor Documentation

◆ ~AcousticSystem()

Nektar::AcousticSystem::~AcousticSystem ( )

virtual

Destructor.

Destructor for AcousticSystem class.

Definition at line 120 of file AcousticSystem.cpp.

121 {

122 }

◆ AcousticSystem()

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

protected

Initialises UnsteadySystem class members.

Definition at line 57 of file AcousticSystem.cpp.

     : UnsteadySystem(pSession, pGraph), AdvectionSystem(pSession, pGraph),
       m_ip(-1), m_irho(-1), m_iu(1), m_conservative(false)
 {
 }

Member Function Documentation

◆ CopyBoundaryTrace()

void Nektar::AcousticSystem::CopyBoundaryTrace	(	const Array< OneD, NekDouble > &	Fwd,
		Array< OneD, NekDouble > &	Bwd
	)

private

Definition at line 626 of file AcousticSystem.cpp.

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

Referenced by UpdateBasefieldFwdBwd().

 {
     int cnt = 0;
     // loop over Boundary Regions
     for (int bcRegion = 0;
          bcRegion < m_fields[0]->GetBndConditions().num_elements(); ++bcRegion)
     {
 
         // Copy the forward trace of the field to the backward trace
         int e, id2, npts;
 
         for (e = 0;
              e < m_fields[0]->GetBndCondExpansions()[bcRegion]->GetExpSize();
              ++e)
         {
             npts = m_fields[0]
                        ->GetBndCondExpansions()[bcRegion]
                        ->GetExp(e)
                        ->GetTotPoints();
             id2 = m_fields[0]->GetTrace()->GetPhys_Offset(
                 m_fields[0]->GetTraceMap()->GetBndCondCoeffsToGlobalCoeffsMap(
                     cnt + e));
 
             Vmath::Vcopy(npts, &Fwd[id2], 1, &Bwd[id2], 1);
         }
 
         cnt += m_fields[0]->GetBndCondExpansions()[bcRegion]->GetExpSize();
     }
 }

◆ DoOdeProjection()

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

protected

Compute the projection and call the method for imposing the boundary conditions in case of discontinuous projection.

Definition at line 215 of file AcousticSystem.cpp.

References Nektar::SolverUtils::EquationSystem::m_fields, SetBoundaryConditions(), UpdateBasefieldFwdBwd(), and Vmath::Vcopy().

Referenced by Nektar::APE::v_InitObject(), and Nektar::LEE::v_InitObject().

 {
     int nvariables = inarray.num_elements();
     int nq         = m_fields[0]->GetNpoints();
 
     // deep copy
     for (int i = 0; i < nvariables; ++i)
     {
         Vmath::Vcopy(nq, inarray[i], 1, outarray[i], 1);
     }
 
     UpdateBasefieldFwdBwd();
 
     SetBoundaryConditions(outarray, time);
 }

◆ DoOdeRhs()

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

protected

Compute the right-hand side.

Definition at line 186 of file AcousticSystem.cpp.

References Nektar::SolverUtils::EquationSystem::GetTotPoints(), m_advection, Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, Nektar::SolverUtils::EquationSystem::m_spacedim, Nektar::SolverUtils::EquationSystem::m_time, Vmath::Neg(), and v_AddLinTerm().

Referenced by Nektar::APE::v_InitObject(), and Nektar::LEE::v_InitObject().

 {
     int nVariables = inarray.num_elements();
     int nq         = GetTotPoints();
 
     // WeakDG does not use advVel, so we only provide a dummy array
     Array<OneD, Array<OneD, NekDouble>> advVel(m_spacedim);
     m_advection->Advect(nVariables, m_fields, advVel, inarray, outarray, time);
 
     // Negate the LHS terms
     for (int i = 0; i < nVariables; ++i)
     {
         Vmath::Neg(nq, outarray[i], 1);
     }
 
     v_AddLinTerm(inarray, outarray);
 
     for (auto &x : m_forcing)
     {
         x->Apply(m_fields, inarray, outarray, m_time);
     }
 }

◆ GetBasefieldFwdBwd()

const Array< OneD, const Array< OneD, NekDouble > > & Nektar::AcousticSystem::GetBasefieldFwdBwd ( )

protected

Get the baseflow field.

Definition at line 611 of file AcousticSystem.cpp.

References m_bfFwdBwd.

Referenced by SetBoundaryConditions(), Nektar::APE::v_InitObject(), and Nektar::LEE::v_InitObject().

 {
     return m_bfFwdBwd;
 }

◆ GetCFLEstimate()

NekDouble Nektar::AcousticSystem::GetCFLEstimate ( )

private

◆ GetNormals()

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

protected

Get the normal vectors.

Definition at line 593 of file AcousticSystem.cpp.

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

Referenced by Nektar::APE::v_InitObject(), and Nektar::LEE::v_InitObject().

 {
     return m_traceNormals;
 }

◆ GetVecLocs()

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

protected

Get the locations of the components of the directed fields within the fields array.

Definition at line 602 of file AcousticSystem.cpp.

References m_vecLocs.

Referenced by Nektar::APE::v_InitObject(), and Nektar::LEE::v_InitObject().

 {
     return m_vecLocs;
 }

◆ SetBoundaryConditions()

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

private

Apply the Boundary Conditions to the AcousticSystem equations.

Definition at line 236 of file AcousticSystem.cpp.

References ASSERTL0, GetBasefieldFwdBwd(), Nektar::SolverUtils::EquationSystem::GetTraceTotPoints(), Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, v_RiemannInvariantBC(), v_WallBC(), and v_WhiteNoiseBC().

Referenced by DoOdeProjection().

 {
     std::string varName;
     int nvariables = m_fields.num_elements();
     int cnt        = 0;
     int nTracePts  = GetTraceTotPoints();
 
     // Extract trace for boundaries. Needs to be done on all processors to avoid
     // deadlock.
     Array<OneD, Array<OneD, NekDouble>> Fwd(nvariables);
     for (int i = 0; i < nvariables; ++i)
     {
         Fwd[i] = Array<OneD, NekDouble>(nTracePts);
         m_fields[i]->ExtractTracePhys(inarray[i], Fwd[i]);
     }
     Array<OneD, Array<OneD, NekDouble>> bfFwd = GetBasefieldFwdBwd();
 
     // loop over Boundary Regions
     for (int n = 0; n < m_fields[0]->GetBndConditions().num_elements(); ++n)
     {
         std::string userDefStr =
             m_fields[0]->GetBndConditions()[n]->GetUserDefined();
 
         if (!userDefStr.empty())
         {
             // Wall Boundary Condition
             if (boost::iequals(userDefStr, "Wall"))
             {
                 v_WallBC(n, cnt, Fwd, inarray);
             }
             else if (boost::iequals(userDefStr, "WhiteNoise"))
             {
                 v_WhiteNoiseBC(n, cnt, Fwd, bfFwd, inarray);
             }
             else if (boost::iequals(userDefStr, "RiemannInvariantBC"))
             {
                 v_RiemannInvariantBC(n, cnt, Fwd, bfFwd, inarray);
             }
             else if (boost::iequals(userDefStr, "TimeDependent"))
             {
                 for (int i = 0; i < nvariables; ++i)
                 {
                     varName = m_session->GetVariable(i);
                     m_fields[i]->EvaluateBoundaryConditions(time, varName);
                 }
             }
             else
             {
                 string errmsg = "Unrecognised boundary condition: ";
                 errmsg += userDefStr;
                 ASSERTL0(false, errmsg.c_str());
             }
         }
         else
         {
             for (int i = 0; i < nvariables; ++i)
             {
                 varName = m_session->GetVariable(i);
                 m_fields[i]->EvaluateBoundaryConditions(time, varName);
             }
         }
 
         cnt += m_fields[0]->GetBndCondExpansions()[n]->GetExpSize();
     }
 }

◆ UpdateBasefieldFwdBwd()

void Nektar::AcousticSystem::UpdateBasefieldFwdBwd ( )

private

Definition at line 616 of file AcousticSystem.cpp.

References CopyBoundaryTrace(), m_bf, m_bfFwdBwd, m_bfNames, and Nektar::SolverUtils::EquationSystem::m_fields.

Referenced by DoOdeProjection().

 {
     for (int i = 0; i < m_bfNames.size(); i++)
     {
         int j = m_bfNames.size() + i;
         m_fields[0]->GetFwdBwdTracePhys(m_bf[i], m_bfFwdBwd[i], m_bfFwdBwd[j]);
         CopyBoundaryTrace(m_bfFwdBwd[i], m_bfFwdBwd[j]);
     }
 }

◆ v_AddLinTerm()

virtual void Nektar::AcousticSystem::v_AddLinTerm	(	const Array< OneD, const Array< OneD, NekDouble >> &	inarray,
		Array< OneD, Array< OneD, NekDouble >> &	outarray
	)

inlineprotectedvirtual

Reimplemented in Nektar::LEE.

Definition at line 100 of file AcousticSystem.h.

Referenced by DoOdeRhs().

     {
         boost::ignore_unused(inarray, outarray);
     }

◆ v_ExtraFldOutput()

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

protectedvirtual

Definition at line 563 of file AcousticSystem.cpp.

References Nektar::SolverUtils::EquationSystem::GetNcoeffs(), m_bf, m_bfNames, Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, and Nektar::SolverUtils::EquationSystem::m_session.

 {
     for (int i = 0; i < m_bfNames.size(); i++)
     {
         variables.push_back(m_bfNames[i]);
         Array<OneD, NekDouble> tmpC(GetNcoeffs());
         m_fields[0]->FwdTrans(m_bf[i], tmpC);
         fieldcoeffs.push_back(tmpC);
     }
 
     int f = 0;
     for (auto &x : m_forcing)
     {
         for (int i = 0; i < x->GetForces().num_elements(); ++i)
         {
             variables.push_back("F_" + boost::lexical_cast<string>(f) + "_" +
                                 m_session->GetVariable(i));
             Array<OneD, NekDouble> tmpC(GetNcoeffs());
             m_fields[0]->FwdTrans(x->GetForces()[i], tmpC);
             fieldcoeffs.push_back(tmpC);
         }
         f++;
     }
 }

◆ v_GetFluxVector()

virtual void Nektar::AcousticSystem::v_GetFluxVector	(	const Array< OneD, Array< OneD, NekDouble >> &	physfield,
		Array< OneD, Array< OneD, Array< OneD, NekDouble >>> &	flux
	)

protectedpure virtual

Implemented in Nektar::LEE, and Nektar::APE.

◆ v_GetMaxStdVelocity()

Array< OneD, NekDouble > Nektar::AcousticSystem::v_GetMaxStdVelocity ( void )

protectedvirtual

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

Returns: Standard velocity field.

Reimplemented from Nektar::SolverUtils::AdvectionSystem.

Definition at line 472 of file AcousticSystem.cpp.

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

 {
     int nElm = m_fields[0]->GetExpSize();
 
     Array<OneD, NekDouble> stdV(nElm, 0.0);
 
     Array<OneD, Array<OneD, NekDouble>> stdVelocity(m_spacedim);
     Array<OneD, Array<OneD, NekDouble>> velocity(m_spacedim);
     LibUtilities::PointsKeyVector ptsKeys;
 
     int cnt = 0;
 
     for (int el = 0; el < nElm; ++el)
     {
         ptsKeys = m_fields[0]->GetExp(el)->GetPointsKeys();
 
         // Possible bug: not multiply by jacobian??
         const SpatialDomains::GeomFactorsSharedPtr metricInfo =
             m_fields[0]->GetExp(el)->GetGeom()->GetMetricInfo();
         const Array<TwoD, const NekDouble> &gmat =
             m_fields[0]
                 ->GetExp(el)
                 ->GetGeom()
                 ->GetMetricInfo()
                 ->GetDerivFactors(ptsKeys);
 
         int nq = m_fields[0]->GetExp(el)->GetTotPoints();
 
         for (int i = 0; i < m_spacedim; ++i)
         {
             stdVelocity[i] = Array<OneD, NekDouble>(nq, 0.0);
 
             velocity[i] = Array<OneD, NekDouble>(nq, 0.0);
             for (int j = 0; j < nq; ++j)
             {
                 // The total advection velocity is v+c, so we need to scale c by
                 // adding it before we do the transformation.
                 NekDouble c    = sqrt(m_bf[0][cnt + j]);
                 velocity[i][j] = m_bf[i + 2][cnt + j] + c;
             }
         }
 
         // scale the velocity components
         if (metricInfo->GetGtype() == SpatialDomains::eDeformed)
         {
             // d xi/ dx = gmat = 1/J * d x/d xi
             for (int i = 0; i < m_spacedim; ++i)
             {
                 Vmath::Vmul(nq, gmat[i], 1, velocity[0], 1, stdVelocity[i], 1);
                 for (int j = 1; j < m_spacedim; ++j)
                 {
                     Vmath::Vvtvp(nq, gmat[m_spacedim * j + i], 1, velocity[j],
                                  1, stdVelocity[i], 1, stdVelocity[i], 1);
                 }
             }
         }
         else
         {
             for (int i = 0; i < m_spacedim; ++i)
             {
                 Vmath::Smul(nq, gmat[i][0], velocity[0], 1, stdVelocity[i], 1);
                 for (int j = 1; j < m_spacedim; ++j)
                 {
                     Vmath::Svtvp(nq, gmat[m_spacedim * j + i][0], velocity[j],
                                  1, stdVelocity[i], 1, stdVelocity[i], 1);
                 }
             }
         }
 
         // compute the max absolute velocity of the element
         for (int i = 0; i < nq; ++i)
         {
             NekDouble pntVelocity = 0.0;
             for (int j = 0; j < m_spacedim; ++j)
             {
                 pntVelocity += stdVelocity[j][i] * stdVelocity[j][i];
             }
             pntVelocity = sqrt(pntVelocity);
 
             if (pntVelocity > stdV[el])
             {
                 stdV[el] = pntVelocity;
             }
         }
 
         cnt += nq;
     }
 
     return stdV;
 }

◆ v_InitObject()

void Nektar::AcousticSystem::v_InitObject ( )

protectedvirtual

Initialization object for the AcousticSystem class.

Reimplemented from Nektar::SolverUtils::AdvectionSystem.

Reimplemented in Nektar::LEE, and Nektar::APE.

Definition at line 68 of file AcousticSystem.cpp.

References ASSERTL0, Nektar::MultiRegions::eDiscontinuous, Nektar::SolverUtils::GetCouplingFactory(), Nektar::SolverUtils::Forcing::Load(), m_bfNames, m_coupling, Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, Nektar::SolverUtils::UnsteadySystem::m_homoInitialFwd, m_iu, Nektar::SolverUtils::EquationSystem::m_projectionType, Nektar::SolverUtils::EquationSystem::m_session, Nektar::SolverUtils::EquationSystem::m_spacedim, m_vecLocs, m_whiteNoiseBC_lastUpdate, m_whiteNoiseBC_p, and Nektar::SolverUtils::AdvectionSystem::v_InitObject().

Referenced by Nektar::APE::v_InitObject(), and Nektar::LEE::v_InitObject().

 {
     AdvectionSystem::v_InitObject();
 
     ASSERTL0(
         m_projectionType == MultiRegions::eDiscontinuous,
         "Only Projection=DisContinuous supported by the AcousticSystem class.");
 
     m_bfNames.push_back("c0sq");
     m_bfNames.push_back("rho0");
     m_bfNames.push_back("u0");
     m_bfNames.push_back("v0");
     m_bfNames.push_back("w0");
 
     // Resize the advection velocities vector to dimension of the problem
     m_bfNames.resize(m_spacedim + 2);
 
     m_forcing = SolverUtils::Forcing::Load(m_session, shared_from_this(),
                                            m_fields, m_fields.num_elements());
 
     // Do not forwards transform initial condition
     m_homoInitialFwd = false;
 
     // Set up locations of velocity and base velocity vectors.
     m_vecLocs    = Array<OneD, Array<OneD, NekDouble>>(1);
     m_vecLocs[0] = Array<OneD, NekDouble>(m_spacedim);
     for (int i = 0; i < m_spacedim; ++i)
     {
         // u', v', w'
         m_vecLocs[0][i] = m_iu + i;
     }
 
     if (m_session->DefinesElement("Nektar/Coupling"))
     {
         TiXmlElement *vCoupling = m_session->GetElement("Nektar/Coupling");
 
         ASSERTL0(vCoupling->Attribute("TYPE"),
                  "Missing TYPE attribute in Coupling");
         string vType = vCoupling->Attribute("TYPE");
         ASSERTL0(!vType.empty(),
                  "TYPE attribute must be non-empty in Coupling");
 
         m_coupling = GetCouplingFactory().CreateInstance(vType, m_fields[0]);
     }
 
     m_whiteNoiseBC_lastUpdate = -1.0;
     m_whiteNoiseBC_p          = 0.0;
 }

◆ v_Output()

void Nektar::AcousticSystem::v_Output ( void )

protectedvirtual

Write the field data to file. The file is named according to the session name with the extension .fld appended.

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 173 of file AcousticSystem.cpp.

References m_coupling, and Nektar::SolverUtils::EquationSystem::v_Output().

 {
     if (m_coupling)
     {
         m_coupling->Finalize();
     }
 
     AdvectionSystem::v_Output();
 }

◆ v_PreIntegrate()

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

protectedvirtual

v_PreIntegrate

Reimplemented from Nektar::SolverUtils::UnsteadySystem.

Definition at line 127 of file AcousticSystem.cpp.

References Nektar::SolverUtils::EquationSystem::GetFunction(), m_bf, m_bfNames, m_coupling, Nektar::SolverUtils::EquationSystem::m_fields, m_forcing, Nektar::SolverUtils::EquationSystem::m_session, Nektar::SolverUtils::EquationSystem::m_time, and Nektar::SolverUtils::UnsteadySystem::v_PreIntegrate().

 {
     GetFunction("Baseflow", m_fields[0], true)
         ->Evaluate(m_bfNames, m_bf, m_time);
 
     if (m_coupling)
     {
         int numForceFields = 0;
         for (auto &x : m_forcing)
         {
             numForceFields += x->GetForces().num_elements();
         }
         vector<string> varNames;
         Array<OneD, Array<OneD, NekDouble>> phys(
             m_fields.num_elements() + m_bfNames.size() + numForceFields);
         for (int i = 0; i < m_fields.num_elements(); ++i)
         {
             varNames.push_back(m_session->GetVariable(i));
             phys[i] = m_fields[i]->UpdatePhys();
         }
         for (int i = 0; i < m_bfNames.size(); ++i)
         {
             varNames.push_back(m_bfNames[i]);
             phys[m_fields.num_elements() + i] = m_bf[i];
         }
 
         int f = 0;
         for (auto &x : m_forcing)
         {
             for (int i = 0; i < x->GetForces().num_elements(); ++i)
             {
                 phys[m_fields.num_elements() + m_bfNames.size() + f + i] =
                     x->GetForces()[i];
                 varNames.push_back("F_" + boost::lexical_cast<string>(f) + "_" +
                                    m_session->GetVariable(i));
             }
             f++;
         }
 
         m_coupling->Send(step, m_time, phys, varNames);
         m_coupling->Receive(step, m_time, phys, varNames);
     }
 
     return AdvectionSystem::v_PreIntegrate(step);
 }

◆ v_RiemannInvariantBC()

virtual void Nektar::AcousticSystem::v_RiemannInvariantBC	(	int	bcRegion,
		int	cnt,
		Array< OneD, Array< OneD, NekDouble >> &	Fwd,
		Array< OneD, Array< OneD, NekDouble >> &	BfFwd,
		Array< OneD, Array< OneD, NekDouble >> &	physarray
	)

privatepure virtual

Implemented in Nektar::LEE, and Nektar::APE.

Referenced by SetBoundaryConditions().

◆ v_WallBC()

void Nektar::AcousticSystem::v_WallBC	(	int	bcRegion,
		int	cnt,
		Array< OneD, Array< OneD, NekDouble >> &	Fwd,
		Array< OneD, Array< OneD, NekDouble >> &	physarray
	)

privatevirtual

Wall boundary conditions for the AcousticSystem equations.

Definition at line 306 of file AcousticSystem.cpp.

References Nektar::SolverUtils::EquationSystem::m_fields, m_iu, Nektar::SolverUtils::EquationSystem::m_spacedim, Nektar::SolverUtils::EquationSystem::m_traceNormals, Vmath::Smul(), Vmath::Vcopy(), and Vmath::Vvtvp().

Referenced by SetBoundaryConditions().

 {
     int nVariables = physarray.num_elements();
 
     const Array<OneD, const int> &traceBndMap = m_fields[0]->GetTraceBndMap();
 
     // Adjust the physical values of the trace to take
     // user defined boundaries into account
     int id1, id2, nBCEdgePts;
     int eMax = m_fields[0]->GetBndCondExpansions()[bcRegion]->GetExpSize();
 
     for (int e = 0; e < eMax; ++e)
     {
         nBCEdgePts = m_fields[0]
                          ->GetBndCondExpansions()[bcRegion]
                          ->GetExp(e)
                          ->GetTotPoints();
         id1 = m_fields[0]->GetBndCondExpansions()[bcRegion]->GetPhys_Offset(e);
         id2 = m_fields[0]->GetTrace()->GetPhys_Offset(traceBndMap[cnt + e]);
 
         // For 2D/3D, define: v* = v - 2(v.n)n
         Array<OneD, NekDouble> tmp(nBCEdgePts, 0.0);
 
         // Calculate (v.n)
         for (int i = 0; i < m_spacedim; ++i)
         {
             Vmath::Vvtvp(nBCEdgePts, &Fwd[m_iu + i][id2], 1,
                          &m_traceNormals[i][id2], 1, &tmp[0], 1, &tmp[0], 1);
         }
 
         // Calculate 2.0(v.n)
         Vmath::Smul(nBCEdgePts, -2.0, &tmp[0], 1, &tmp[0], 1);
 
         // Calculate v* = v - 2.0(v.n)n
         for (int i = 0; i < m_spacedim; ++i)
         {
             Vmath::Vvtvp(nBCEdgePts, &tmp[0], 1, &m_traceNormals[i][id2], 1,
                          &Fwd[m_iu + i][id2], 1, &Fwd[m_iu + i][id2], 1);
         }
 
         // Copy boundary adjusted values into the boundary expansion
         for (int i = 0; i < nVariables; ++i)
         {
             Vmath::Vcopy(nBCEdgePts, &Fwd[i][id2], 1,
                          &(m_fields[i]
                                ->GetBndCondExpansions()[bcRegion]
                                ->UpdatePhys())[id1],
                          1);
         }
     }
 }

◆ v_WhiteNoiseBC()

void Nektar::AcousticSystem::v_WhiteNoiseBC	(	int	bcRegion,
		int	cnt,
		Array< OneD, Array< OneD, NekDouble >> &	Fwd,
		Array< OneD, Array< OneD, NekDouble >> &	BfFwd,
		Array< OneD, Array< OneD, NekDouble >> &	physarray
	)

privatevirtual

Wall boundary conditions for the AcousticSystem equations.

Definition at line 363 of file AcousticSystem.cpp.

References ASSERTL0, Nektar::SpatialDomains::eDirichlet, Nektar::LibUtilities::Equation::Evaluate(), Vmath::Fill(), Nektar::NekConstants::kNekZeroTol, m_conservative, Nektar::SolverUtils::EquationSystem::m_fields, m_ip, m_irho, m_iu, m_rng, Nektar::SolverUtils::EquationSystem::m_spacedim, Nektar::SolverUtils::EquationSystem::m_time, Nektar::SolverUtils::EquationSystem::m_traceNormals, m_whiteNoiseBC_lastUpdate, m_whiteNoiseBC_p, and Vmath::Vcopy().

Referenced by SetBoundaryConditions().

 {
     boost::ignore_unused(Fwd);
 
     int id1, id2, nBCEdgePts;
     int nVariables = physarray.num_elements();
 
     const Array<OneD, const int> &traceBndMap = m_fields[0]->GetTraceBndMap();
 
     if (m_rng.count(bcRegion) == 0)
     {
         m_rng[bcRegion] = boost::mt19937(bcRegion);
     }
 
     ASSERTL0(
         m_fields[0]->GetBndConditions()[bcRegion]->GetBoundaryConditionType() ==
             SpatialDomains::eDirichlet,
         "WhiteNoise BCs must be Dirichlet type BCs");
 
     LibUtilities::Equation cond =
         std::static_pointer_cast<SpatialDomains::DirichletBoundaryCondition>(
             m_fields[0]->GetBndConditions()[bcRegion])
             ->m_dirichletCondition;
     NekDouble sigma = cond.Evaluate();
 
     ASSERTL0(sigma > NekConstants::kNekZeroTol,
              "sigma must be greater than zero");
 
     // random velocity perturbation
     if (m_whiteNoiseBC_lastUpdate < m_time)
     {
         m_whiteNoiseBC_lastUpdate = m_time;
 
         boost::normal_distribution<> dist(0, sigma);
         m_whiteNoiseBC_p = dist(m_rng[bcRegion]);
     }
 
     int eMax = m_fields[0]->GetBndCondExpansions()[bcRegion]->GetExpSize();
     for (int e = 0; e < eMax; ++e)
     {
         nBCEdgePts = m_fields[0]
                          ->GetBndCondExpansions()[bcRegion]
                          ->GetExp(e)
                          ->GetTotPoints();
         id1 = m_fields[0]->GetBndCondExpansions()[bcRegion]->GetPhys_Offset(e);
         id2 = m_fields[0]->GetTrace()->GetPhys_Offset(traceBndMap[cnt + e]);
 
         Array<OneD, Array<OneD, NekDouble>> tmp(nVariables);
         for (int i = 0; i < nVariables; ++i)
         {
             tmp[i] = Array<OneD, NekDouble>(nBCEdgePts, 0.0);
         }
 
         // pressure perturbation
         Vmath::Fill(nBCEdgePts, m_whiteNoiseBC_p, &tmp[m_ip][0], 1);
 
         if (m_conservative)
         {
             for (int i = 0; i < nBCEdgePts; ++i)
             {
                 // density perturbation
                 tmp[m_irho][i] = m_whiteNoiseBC_p *
                                  BfFwd[m_spacedim + 2][id2 + i] /
                                  BfFwd[0][id2 + i];
 
                 // velocity perturbation
                 NekDouble ru = m_whiteNoiseBC_p / sqrt(BfFwd[0][id2 + i]);
                 for (int j = 0; j < m_spacedim; ++j)
                 {
                     tmp[m_iu + j][i] = -1.0 * ru * m_traceNormals[j][id2 + i];
                 }
             }
         }
         else
         {
             for (int i = 0; i < nBCEdgePts; ++i)
             {
                 // velocity perturbation
                 NekDouble u = m_whiteNoiseBC_p /
                               (sqrt(BfFwd[0][id2 + i]) * BfFwd[1][id2 + i]);
 
                 for (int j = 0; j < m_spacedim; ++j)
                 {
                     tmp[m_iu + j][i] = -1.0 * u * m_traceNormals[j][id2 + i];
                 }
             }
         }
 
         // Copy boundary adjusted values into the boundary expansion
         for (int i = 0; i < nVariables; ++i)
         {
             Vmath::Vcopy(nBCEdgePts, &tmp[i][0], 1,
                          &(m_fields[i]
                                ->GetBndCondExpansions()[bcRegion]
                                ->UpdatePhys())[id1],
                          1);
         }
     }
 }

Friends And Related Function Documentation

◆ MemoryManager< AcousticSystem >

friend class MemoryManager< AcousticSystem >

friend

Definition at line 63 of file AcousticSystem.h.

Member Data Documentation

◆ m_advection

SolverUtils::AdvectionSharedPtr Nektar::AcousticSystem::m_advection

protected

Definition at line 74 of file AcousticSystem.h.

Referenced by DoOdeRhs(), Nektar::APE::v_InitObject(), and Nektar::LEE::v_InitObject().

◆ m_bf

Array<OneD, Array<OneD, NekDouble> > Nektar::AcousticSystem::m_bf

protected

Definition at line 79 of file AcousticSystem.h.

Referenced by UpdateBasefieldFwdBwd(), Nektar::LEE::v_AddLinTerm(), v_ExtraFldOutput(), Nektar::APE::v_GetFluxVector(), Nektar::LEE::v_GetFluxVector(), v_GetMaxStdVelocity(), Nektar::APE::v_InitObject(), Nektar::LEE::v_InitObject(), and v_PreIntegrate().

◆ m_bfFwdBwd

Array<OneD, Array<OneD, NekDouble> > Nektar::AcousticSystem::m_bfFwdBwd

protected

Definition at line 77 of file AcousticSystem.h.

Referenced by GetBasefieldFwdBwd(), UpdateBasefieldFwdBwd(), Nektar::APE::v_InitObject(), and Nektar::LEE::v_InitObject().

◆ m_bfNames

std::vector<std::string> Nektar::AcousticSystem::m_bfNames

protected

Definition at line 80 of file AcousticSystem.h.

Referenced by UpdateBasefieldFwdBwd(), v_ExtraFldOutput(), Nektar::APE::v_InitObject(), Nektar::LEE::v_InitObject(), v_InitObject(), and v_PreIntegrate().

◆ m_conservative

bool Nektar::AcousticSystem::m_conservative

protected

we are dealing with a conservative formualtion

Definition at line 72 of file AcousticSystem.h.

Referenced by Nektar::APE::APE(), Nektar::LEE::LEE(), and v_WhiteNoiseBC().

◆ m_coupling

SolverUtils::CouplingSharedPtr Nektar::AcousticSystem::m_coupling

protected

Definition at line 73 of file AcousticSystem.h.

Referenced by v_InitObject(), v_Output(), and v_PreIntegrate().

◆ m_forcing

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

protected

Definition at line 75 of file AcousticSystem.h.

Referenced by DoOdeRhs(), v_ExtraFldOutput(), v_InitObject(), and v_PreIntegrate().

◆ m_ip

int Nektar::AcousticSystem::m_ip

protected

indices of the fields

Definition at line 70 of file AcousticSystem.h.

Referenced by Nektar::APE::APE(), Nektar::LEE::LEE(), Nektar::LEE::v_AddLinTerm(), Nektar::LEE::v_GetFluxVector(), Nektar::APE::v_RiemannInvariantBC(), Nektar::LEE::v_RiemannInvariantBC(), and v_WhiteNoiseBC().

◆ m_irho

int Nektar::AcousticSystem::m_irho

protected

Definition at line 70 of file AcousticSystem.h.

Referenced by Nektar::APE::APE(), Nektar::LEE::LEE(), Nektar::LEE::v_GetFluxVector(), Nektar::LEE::v_RiemannInvariantBC(), and v_WhiteNoiseBC().

◆ m_iu

int Nektar::AcousticSystem::m_iu

protected

Definition at line 70 of file AcousticSystem.h.

Referenced by Nektar::APE::APE(), Nektar::LEE::LEE(), Nektar::LEE::v_AddLinTerm(), Nektar::LEE::v_GetFluxVector(), v_InitObject(), Nektar::APE::v_RiemannInvariantBC(), Nektar::LEE::v_RiemannInvariantBC(), v_WallBC(), and v_WhiteNoiseBC().

◆ m_riemannSolver

SolverUtils::RiemannSolverSharedPtr Nektar::AcousticSystem::m_riemannSolver

protected

Definition at line 76 of file AcousticSystem.h.

Referenced by Nektar::APE::v_InitObject(), and Nektar::LEE::v_InitObject().

◆ m_rng

std::map<int, boost::mt19937> Nektar::AcousticSystem::m_rng

private

Definition at line 124 of file AcousticSystem.h.

Referenced by v_WhiteNoiseBC().

◆ m_vecLocs

Array<OneD, Array<OneD, NekDouble> > Nektar::AcousticSystem::m_vecLocs

protected

Definition at line 78 of file AcousticSystem.h.

Referenced by GetVecLocs(), and v_InitObject().

◆ m_whiteNoiseBC_lastUpdate

NekDouble Nektar::AcousticSystem::m_whiteNoiseBC_lastUpdate

private

Definition at line 125 of file AcousticSystem.h.

Referenced by v_InitObject(), and v_WhiteNoiseBC().

◆ m_whiteNoiseBC_p

NekDouble Nektar::AcousticSystem::m_whiteNoiseBC_p

private

Definition at line 126 of file AcousticSystem.h.

Referenced by v_InitObject(), and v_WhiteNoiseBC().

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~AcousticSystem()

◆ AcousticSystem()

Member Function Documentation

◆ CopyBoundaryTrace()

◆ DoOdeProjection()

◆ DoOdeRhs()

◆ GetBasefieldFwdBwd()

◆ GetCFLEstimate()

◆ GetNormals()

◆ GetVecLocs()

◆ SetBoundaryConditions()

◆ UpdateBasefieldFwdBwd()

◆ v_AddLinTerm()

◆ v_ExtraFldOutput()

◆ v_GetFluxVector()

◆ v_GetMaxStdVelocity()

◆ v_InitObject()

◆ v_Output()

◆ v_PreIntegrate()

◆ v_RiemannInvariantBC()

◆ v_WallBC()

◆ v_WhiteNoiseBC()

Friends And Related Function Documentation

◆ MemoryManager< AcousticSystem >

Member Data Documentation

◆ m_advection

◆ m_bf

◆ m_bfFwdBwd

◆ m_bfNames

◆ m_conservative

◆ m_coupling

◆ m_forcing

◆ m_ip

◆ m_irho

◆ m_iu

◆ m_riemannSolver

◆ m_rng

◆ m_vecLocs

◆ m_whiteNoiseBC_lastUpdate

◆ m_whiteNoiseBC_p