Nektar::LaplacePhi Class Reference

#include <LaplacePhi.h>

Inheritance diagram for Nektar::LaplacePhi:

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

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

Protected Member Functions
	LaplacePhi (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)
	~LaplacePhi () override=default
void	v_InitObject (bool DeclareFields=true) override
	Initialisation object for EquationSystem.
void	v_GenerateSummary (SolverUtils::SummaryList &s) override
	Virtual function for generating summary information.
void	v_DoSolve () override
	Virtual function for solve implementation.
void	v_DoInitialise (bool dumpInitialConditions=true) override
	Virtual function for initialisation implementation.
Protected Member Functions inherited from Nektar::SolverUtils::EquationSystem
SOLVER_UTILS_EXPORT	EquationSystem (const LibUtilities::SessionReaderSharedPtr &pSession, const SpatialDomains::MeshGraphSharedPtr &pGraph)
	Initialises EquationSystem class members.
virtual SOLVER_UTILS_EXPORT NekDouble	v_LinfError (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray)
	Virtual function for the L_inf error computation between fields and a given exact solution.
virtual SOLVER_UTILS_EXPORT NekDouble	v_L2Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray, bool Normalised=false)
	Virtual function for the L_2 error computation between fields and a given exact solution.
virtual SOLVER_UTILS_EXPORT NekDouble	v_H1Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray, bool Normalised=false)
	Virtual function for the H_1 error computation between fields and a given exact solution.
virtual SOLVER_UTILS_EXPORT void	v_TransCoeffToPhys ()
	Virtual function for transformation to physical space.
virtual SOLVER_UTILS_EXPORT void	v_TransPhysToCoeff ()
	Virtual function for transformation to coefficient space.
virtual SOLVER_UTILS_EXPORT void	v_SetInitialConditions (NekDouble initialtime=0.0, bool dumpInitialConditions=true, const int domain=0)
virtual SOLVER_UTILS_EXPORT void	v_EvaluateExactSolution (unsigned int field, Array< OneD, NekDouble > &outfield, const NekDouble time)
virtual SOLVER_UTILS_EXPORT void	v_Output (void)
virtual SOLVER_UTILS_EXPORT MultiRegions::ExpListSharedPtr	v_GetPressure (void)
virtual SOLVER_UTILS_EXPORT bool	v_NegatedOp (void)
	Virtual function to identify if operator is negated in DoSolve.
virtual SOLVER_UTILS_EXPORT void	v_ExtraFldOutput (std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)

Protected Attributes
StdRegions::ConstFactorMap	m_factors
Protected Attributes inherited from Nektar::SolverUtils::EquationSystem
LibUtilities::CommSharedPtr	m_comm
	Communicator.
bool	m_verbose
LibUtilities::SessionReaderSharedPtr	m_session
	The session reader.
std::map< std::string, SolverUtils::SessionFunctionSharedPtr >	m_sessionFunctions
	Map of known SessionFunctions.
LibUtilities::FieldIOSharedPtr	m_fld
	Field input/output.
Array< OneD, MultiRegions::ExpListSharedPtr >	m_fields
	Array holding all dependent variables.
SpatialDomains::BoundaryConditionsSharedPtr	m_boundaryConditions
	Pointer to boundary conditions object.
SpatialDomains::MeshGraphSharedPtr	m_graph
	Pointer to graph defining mesh.
std::string	m_sessionName
	Name of the session.
NekDouble	m_time
	Current time of simulation.
int	m_initialStep
	Number of the step where the simulation should begin.
NekDouble	m_fintime
	Finish time of the simulation.
NekDouble	m_timestep
	Time step size.
NekDouble	m_lambda
	Lambda constant in real system if one required.
NekDouble	m_checktime
	Time between checkpoints.
NekDouble	m_lastCheckTime
NekDouble	m_TimeIncrementFactor
int	m_nchk
	Number of checkpoints written so far.
int	m_steps
	Number of steps to take.
int	m_checksteps
	Number of steps between checkpoints.
int	m_infosteps
	Number of time steps between outputting status information.
int	m_iterPIT = 0
	Number of parallel-in-time time iteration.
int	m_windowPIT = 0
	Index of windows for parallel-in-time time iteration.
int	m_spacedim
	Spatial dimension (>= expansion dim).
int	m_expdim
	Expansion dimension.
bool	m_singleMode
	Flag to determine if single homogeneous mode is used.
bool	m_halfMode
	Flag to determine if half homogeneous mode is used.
bool	m_multipleModes
	Flag to determine if use multiple homogenenous modes are used.
bool	m_useFFT
	Flag to determine if FFT is used for homogeneous transform.
bool	m_homogen_dealiasing
	Flag to determine if dealiasing is used for homogeneous simulations.
bool	m_specHP_dealiasing
	Flag to determine if dealisising is usde for the Spectral/hp element discretisation.
enum MultiRegions::ProjectionType	m_projectionType
	Type of projection; e.g continuous or discontinuous.
Array< OneD, Array< OneD, NekDouble > >	m_traceNormals
	Array holding trace normals for DG simulations in the forwards direction.
Array< OneD, bool >	m_checkIfSystemSingular
	Flag to indicate if the fields should be checked for singularity.
LibUtilities::FieldMetaDataMap	m_fieldMetaDataMap
	Map to identify relevant solver info to dump in output fields.
Array< OneD, NekDouble >	m_movingFrameData
	Moving reference frame status in the body frame X, Y, Z, Theta_x, Theta_y, Theta_z, [inertial] U, V, W, Omega_x, Omega_y, Omega_z, [body] A_x, A_y, A_z, DOmega_x, DOmega_y, DOmega_z, [body] pivot_x, pivot_y, pivot_z [body].
std::vector< std::string >	m_strFrameData
	variable name in m_movingFrameData
std::vector< bool >	m_movableDoFs
int	m_NumQuadPointsError
	Number of Quadrature points used to work out the error.
enum HomogeneousType	m_HomogeneousType
NekDouble	m_LhomX
	physical length in X direction (if homogeneous)
NekDouble	m_LhomY
	physical length in Y direction (if homogeneous)
NekDouble	m_LhomZ
	physical length in Z direction (if homogeneous)
int	m_npointsX
	number of points in X direction (if homogeneous)
int	m_npointsY
	number of points in Y direction (if homogeneous)
int	m_npointsZ
	number of points in Z direction (if homogeneous)
int	m_HomoDirec
	number of homogenous directions

Private Member Functions
Array< OneD, bool >	v_GetSystemSingularChecks () override
void	setUserDefinedBC (int n)
void	calculateAddedMass ()

Private Attributes
Array< OneD, Array< OneD, NekDouble > >	m_boundValues
Array< OneD, NekDouble >	m_pivot

Friends
class	MemoryManager< LaplacePhi >
	Class may only be instantiated through the MemoryManager.

Additional Inherited Members
Public Member Functions inherited from Nektar::SolverUtils::EquationSystem
virtual SOLVER_UTILS_EXPORT	~EquationSystem ()
	Destructor.
SOLVER_UTILS_EXPORT void	InitObject (bool DeclareField=true)
	Initialises the members of this object.
SOLVER_UTILS_EXPORT void	DoInitialise (bool dumpInitialConditions=true)
	Perform any initialisation necessary before solving the problem.
SOLVER_UTILS_EXPORT void	DoSolve ()
	Solve the problem.
SOLVER_UTILS_EXPORT void	TransCoeffToPhys ()
	Transform from coefficient to physical space.
SOLVER_UTILS_EXPORT void	TransPhysToCoeff ()
	Transform from physical to coefficient space.
SOLVER_UTILS_EXPORT void	Output ()
	Perform output operations after solve.
SOLVER_UTILS_EXPORT std::string	GetSessionName ()
	Get Session name.
template<class T >
std::shared_ptr< T >	as ()
SOLVER_UTILS_EXPORT void	ResetSessionName (std::string newname)
	Reset Session name.
SOLVER_UTILS_EXPORT LibUtilities::SessionReaderSharedPtr	GetSession ()
	Get Session name.
SOLVER_UTILS_EXPORT MultiRegions::ExpListSharedPtr	GetPressure ()
	Get pressure field if available.
SOLVER_UTILS_EXPORT void	ExtraFldOutput (std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
SOLVER_UTILS_EXPORT void	PrintSummary (std::ostream &out)
	Print a summary of parameters and solver characteristics.
SOLVER_UTILS_EXPORT void	SetLambda (NekDouble lambda)
	Set parameter m_lambda.
SOLVER_UTILS_EXPORT SessionFunctionSharedPtr	GetFunction (std::string name, const MultiRegions::ExpListSharedPtr &field=MultiRegions::NullExpListSharedPtr, bool cache=false)
	Get a SessionFunction by name.
SOLVER_UTILS_EXPORT void	SetInitialConditions (NekDouble initialtime=0.0, bool dumpInitialConditions=true, const int domain=0)
	Initialise the data in the dependent fields.
SOLVER_UTILS_EXPORT void	EvaluateExactSolution (int field, Array< OneD, NekDouble > &outfield, const NekDouble time)
	Evaluates an exact solution.
SOLVER_UTILS_EXPORT NekDouble	L2Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln, bool Normalised=false)
	Compute the L2 error between fields and a given exact solution.
SOLVER_UTILS_EXPORT NekDouble	L2Error (unsigned int field, bool Normalised=false)
	Compute the L2 error of the fields.
SOLVER_UTILS_EXPORT NekDouble	LinfError (unsigned int field, const Array< OneD, NekDouble > &exactsoln=NullNekDouble1DArray)
	Linf error computation.
SOLVER_UTILS_EXPORT NekDouble	H1Error (unsigned int field, const Array< OneD, NekDouble > &exactsoln, bool Normalised=false)
	Compute the H1 error between fields and a given exact solution.
SOLVER_UTILS_EXPORT Array< OneD, NekDouble >	ErrorExtraPoints (unsigned int field)
	Compute error (L2 and L_inf) over an larger set of quadrature points return [L2 Linf].
SOLVER_UTILS_EXPORT void	Checkpoint_Output (const int n)
	Write checkpoint file of m_fields.
SOLVER_UTILS_EXPORT void	Checkpoint_Output (const int n, MultiRegions::ExpListSharedPtr &field, std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
	Write checkpoint file of custom data fields.
SOLVER_UTILS_EXPORT void	Checkpoint_BaseFlow (const int n)
	Write base flow file of m_fields.
SOLVER_UTILS_EXPORT void	WriteFld (const std::string &outname)
	Write field data to the given filename.
SOLVER_UTILS_EXPORT void	WriteFld (const std::string &outname, MultiRegions::ExpListSharedPtr &field, std::vector< Array< OneD, NekDouble > > &fieldcoeffs, std::vector< std::string > &variables)
	Write input fields to the given filename.
SOLVER_UTILS_EXPORT void	ImportFld (const std::string &infile, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields)
	Input field data from the given file.
SOLVER_UTILS_EXPORT void	ImportFldToMultiDomains (const std::string &infile, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const int ndomains)
	Input field data from the given file to multiple domains.
SOLVER_UTILS_EXPORT void	ImportFld (const std::string &infile, std::vector< std::string > &fieldStr, Array< OneD, Array< OneD, NekDouble > > &coeffs)
	Output a field. Input field data into array from the given file.
SOLVER_UTILS_EXPORT void	ImportFld (const std::string &infile, MultiRegions::ExpListSharedPtr &pField, std::string &pFieldName)
	Output a field. Input field data into ExpList from the given file.
SOLVER_UTILS_EXPORT void	SessionSummary (SummaryList &vSummary)
	Write out a session summary.
SOLVER_UTILS_EXPORT Array< OneD, MultiRegions::ExpListSharedPtr > &	UpdateFields ()
SOLVER_UTILS_EXPORT LibUtilities::FieldMetaDataMap &	UpdateFieldMetaDataMap ()
	Get hold of FieldInfoMap so it can be updated.
SOLVER_UTILS_EXPORT NekDouble	GetTime ()
	Return final time.
SOLVER_UTILS_EXPORT int	GetNcoeffs ()
SOLVER_UTILS_EXPORT int	GetNcoeffs (const int eid)
SOLVER_UTILS_EXPORT int	GetNumExpModes ()
SOLVER_UTILS_EXPORT const Array< OneD, int >	GetNumExpModesPerExp ()
SOLVER_UTILS_EXPORT int	GetNvariables ()
SOLVER_UTILS_EXPORT const std::string	GetVariable (unsigned int i)
SOLVER_UTILS_EXPORT int	GetTraceTotPoints ()
SOLVER_UTILS_EXPORT int	GetTraceNpoints ()
SOLVER_UTILS_EXPORT int	GetExpSize ()
SOLVER_UTILS_EXPORT int	GetPhys_Offset (int n)
SOLVER_UTILS_EXPORT int	GetCoeff_Offset (int n)
SOLVER_UTILS_EXPORT int	GetTotPoints ()
SOLVER_UTILS_EXPORT int	GetTotPoints (int n)
SOLVER_UTILS_EXPORT int	GetNpoints ()
SOLVER_UTILS_EXPORT int	GetSteps ()
SOLVER_UTILS_EXPORT void	SetSteps (const int steps)
SOLVER_UTILS_EXPORT NekDouble	GetTimeStep ()
SOLVER_UTILS_EXPORT void	CopyFromPhysField (const int i, Array< OneD, NekDouble > &output)
SOLVER_UTILS_EXPORT void	CopyToPhysField (const int i, const Array< OneD, const NekDouble > &input)
SOLVER_UTILS_EXPORT Array< OneD, NekDouble > &	UpdatePhysField (const int i)
SOLVER_UTILS_EXPORT void	ZeroPhysFields ()
SOLVER_UTILS_EXPORT void	FwdTransFields ()
SOLVER_UTILS_EXPORT void	SetModifiedBasis (const bool modbasis)
SOLVER_UTILS_EXPORT int	GetCheckpointNumber ()
SOLVER_UTILS_EXPORT void	SetCheckpointNumber (int num)
SOLVER_UTILS_EXPORT int	GetCheckpointSteps ()
SOLVER_UTILS_EXPORT void	SetCheckpointSteps (int num)
SOLVER_UTILS_EXPORT int	GetInfoSteps ()
SOLVER_UTILS_EXPORT void	SetInfoSteps (int num)
SOLVER_UTILS_EXPORT void	SetIterationNumberPIT (int num)
SOLVER_UTILS_EXPORT void	SetWindowNumberPIT (int num)
SOLVER_UTILS_EXPORT Array< OneD, const Array< OneD, NekDouble > >	GetTraceNormals ()
SOLVER_UTILS_EXPORT LibUtilities::FieldMetaDataMap &	GetFieldMetaDataMap (void)
SOLVER_UTILS_EXPORT void	SetTime (const NekDouble time)
SOLVER_UTILS_EXPORT void	SetTimeStep (const NekDouble timestep)
SOLVER_UTILS_EXPORT void	SetInitialStep (const int step)
SOLVER_UTILS_EXPORT void	SetBoundaryConditions (NekDouble time)
	Evaluates the boundary conditions at the given time.
SOLVER_UTILS_EXPORT bool	NegatedOp ()
	Identify if operator is negated in DoSolve.
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 []
static std::string	projectionTypeLookupIds []

Detailed Description

Definition at line 44 of file LaplacePhi.h.

Constructor & Destructor Documentation

LaplacePhi()

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

protected

Definition at line 45 of file LaplacePhi.cpp.

    : EquationSystem(pSession, pGraph), m_factors()
{
    m_factors[StdRegions::eFactorLambda] = 0.0;
    m_factors[StdRegions::eFactorTau]    = 1.0;
}

References Nektar::StdRegions::eFactorLambda, Nektar::StdRegions::eFactorTau, and m_factors.

~LaplacePhi()

Nektar::LaplacePhi::~LaplacePhi ( )

overrideprotecteddefault

Member Function Documentation

calculateAddedMass()

void Nektar::LaplacePhi::calculateAddedMass ( )

private

Definition at line 203 of file LaplacePhi.cpp.

{
    Array<OneD, const SpatialDomains::BoundaryConditionShPtr> m_BndConds =
        m_fields[0]->GetBndConditions();
    Array<OneD, MultiRegions::ExpListSharedPtr> m_BndExp =
        m_fields[0]->GetBndCondExpansions();
    int nfld = m_fields.size();
    Array<OneD, NekDouble> value(nfld * nfld,
                                 std::numeric_limits<NekDouble>::lowest());
    int offset = 0;
    for (int i = 0; i < m_BndConds.size(); ++i)
    {
        if (boost::iequals(m_BndConds[i]->GetUserDefined(), "MOVE"))
        {
            MultiRegions::ExpListSharedPtr edgeExplist = m_BndExp[i];
            Array<OneD, Array<OneD, NekDouble>> phi(nfld);
            MultiRegions::ExpListSharedPtr BndElmtExp;
            m_fields[0]->GetBndElmtExpansion(i, BndElmtExp, false);
            Array<OneD, NekDouble> phiElm(BndElmtExp->GetTotPoints(), 0.);
            for (int j = 0; j < nfld; ++j)
            {
                m_fields[j]->ExtractPhysToBndElmt(i, m_fields[j]->GetPhys(),
                                                  phiElm);
                m_fields[j]->ExtractElmtToBndPhys(i, phiElm, phi[j]);
            }
            ////phi_0 n_0, phi_0 n_1, phi_1 n_0, phi_1 n_1
            Array<OneD, NekDouble> mularray(edgeExplist->GetTotPoints(), 0.);
            for (int j = 0; j < nfld; ++j)
            {
                for (int k = 0; k < m_boundValues.size(); ++k)
                {
                    Vmath::Vmul(edgeExplist->GetTotPoints(), phi[j], 1,
                                m_boundValues[k] + offset, 1, mularray, 1);
                    value[k + j * nfld] = edgeExplist->Integral(mularray);
                }
            }
            offset += edgeExplist->GetTotPoints();
        }
    }
 
    m_session->GetComm()->AllReduce(value, LibUtilities::ReduceMax);
    if (m_session->GetComm()->GetRank() == 0)
    {
        for (int j = 0; j < nfld; ++j)
        {
            for (int k = 0; k < nfld; ++k)
            {
                std::cout << "value[" << m_session->GetVariable(j)[3] << ", "
                          << m_session->GetVariable(k)[3]
                          << "] = " << std::scientific << std::setprecision(7)
                          << value[k + j * nfld] << std::endl;
            }
        }
    }
}

References m_boundValues, Nektar::SolverUtils::EquationSystem::m_fields, Nektar::SolverUtils::EquationSystem::m_session, Nektar::LibUtilities::ReduceMax, and Vmath::Vmul().

Referenced by v_DoSolve().

create()

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

inlinestatic

Creates an instance of this class.

Definition at line 51 of file LaplacePhi.h.

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

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

setUserDefinedBC()

void Nektar::LaplacePhi::setUserDefinedBC ( int  n )

private

Definition at line 184 of file LaplacePhi.cpp.

{
    int m = m_session->GetVariable(n)[3] - '0';
    Array<OneD, const SpatialDomains::BoundaryConditionShPtr> m_BndConds =
        m_fields[n]->GetBndConditions();
    Array<OneD, MultiRegions::ExpListSharedPtr> m_BndExp =
        m_fields[n]->GetBndCondExpansions();
    int offset = 0;
    for (int i = 0; i < m_BndConds.size(); ++i)
    {
        if (boost::iequals(m_BndConds[i]->GetUserDefined(), "MOVE"))
        {
            m_BndExp[i]->IProductWRTBase(m_boundValues[m] + offset,
                                         m_BndExp[i]->UpdateCoeffs());
            offset += m_BndExp[i]->GetTotPoints();
        }
    }
}

References m_boundValues, Nektar::SolverUtils::EquationSystem::m_fields, and Nektar::SolverUtils::EquationSystem::m_session.

Referenced by v_DoSolve().

v_DoInitialise()

void Nektar::LaplacePhi::v_DoInitialise ( bool  dumpInitialConditions = true )

overrideprotectedvirtual

Virtual function for initialisation implementation.

By default, nothing needs initialising at the EquationSystem level.

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 159 of file LaplacePhi.cpp.

{
    // Set initial conditions from session file
    SetInitialConditions(0.0, false, 0);
}

References Nektar::SolverUtils::EquationSystem::SetInitialConditions().

v_DoSolve()

void Nektar::LaplacePhi::v_DoSolve ( void  )

overrideprotectedvirtual

Virtual function for solve implementation.

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 165 of file LaplacePhi.cpp.

{
    for (int i = 0; i < m_fields.size(); ++i)
    {
        setUserDefinedBC(i);
        Array<OneD, NekDouble> forcing(m_fields[i]->GetTotPoints(), 0.);
        m_fields[i]->HelmSolve(forcing, m_fields[i]->UpdateCoeffs(), m_factors);
        m_fields[i]->BwdTrans(m_fields[i]->GetCoeffs(),
                              m_fields[i]->UpdatePhys());
        m_fields[i]->SetPhysState(true);
    }
    calculateAddedMass();
}

References calculateAddedMass(), Nektar::SolverUtils::EquationSystem::GetTotPoints(), m_factors, Nektar::SolverUtils::EquationSystem::m_fields, and setUserDefinedBC().

v_GenerateSummary()

void Nektar::LaplacePhi::v_GenerateSummary ( SolverUtils::SummaryList &  l )

overrideprotectedvirtual

Virtual function for generating summary information.

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 152 of file LaplacePhi.cpp.

{
    EquationSystem::SessionSummary(s);
    SolverUtils::AddSummaryItem(s, "Lambda",
                                m_factors[StdRegions::eFactorLambda]);
}

References Nektar::SolverUtils::AddSummaryItem(), Nektar::StdRegions::eFactorLambda, m_factors, and Nektar::SolverUtils::EquationSystem::SessionSummary().

v_GetSystemSingularChecks()

Array< OneD, bool > Nektar::LaplacePhi::v_GetSystemSingularChecks ( )

overrideprivatevirtual

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 179 of file LaplacePhi.cpp.

{
    return Array<OneD, bool>(m_session->GetVariables().size(), true);
}

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

v_InitObject()

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

overrideprotectedvirtual

Initialisation object for EquationSystem.

Continuous field

Setting up the normals

Setting up the normals

Reimplemented from Nektar::SolverUtils::EquationSystem.

Definition at line 53 of file LaplacePhi.cpp.

{
    EquationSystem::v_InitObject(DeclareFields);
    int ndim = m_fields[0]->GetCoordim(0);
    // number of potential fields
    int bndsize = (ndim == 2) ? 4 : 7;
    // check variable name phi[0-bndsize]
    for (const auto &it : m_session->GetVariables())
    {
        if (it.size() != 4 || it[0] != 'p' || it[1] != 'h' || it[2] != 'i' ||
            it[3] < '0' || it[4] >= bndsize + '0')
        {
            NEKERROR(ErrorUtil::efatal,
                     "Error: incorrect variable name '" + it +
                         "', should be phi[0-3] or phi[0-6].");
        }
    }
    // number of physics points for each field
    int numpts = 0;
    Array<OneD, const SpatialDomains::BoundaryConditionShPtr> m_BndConds =
        m_fields[0]->GetBndConditions();
    Array<OneD, MultiRegions::ExpListSharedPtr> m_BndExp =
        m_fields[0]->GetBndCondExpansions();
    for (int i = 0; i < m_BndConds.size(); ++i)
    {
        if (boost::iequals(m_BndConds[i]->GetUserDefined(), "MOVE"))
        {
            numpts += m_BndExp[i]->GetTotPoints();
        }
    }
    // load pivot point
    m_pivot = Array<OneD, NekDouble>(3, 0.);
    if (m_session->DefinesParameter("Pivotx"))
    {
        m_pivot[0] = m_session->GetParameter("Pivotx");
    }
    if (m_session->DefinesParameter("Pivoty"))
    {
        m_pivot[1] = m_session->GetParameter("Pivoty");
    }
    if (m_session->DefinesParameter("Pivotz"))
    {
        m_pivot[2] = m_session->GetParameter("Pivotz");
    }
    // allocate storage
    m_boundValues = Array<OneD, Array<OneD, NekDouble>>(bndsize);
    for (int i = 0; i < bndsize; ++i)
    {
        m_boundValues[i] = Array<OneD, NekDouble>(numpts, 0.);
    }
    // calculate values
    int offset = 0;
    for (int i = 0; i < m_BndConds.size(); ++i)
    {
        if (boost::iequals(m_BndConds[i]->GetUserDefined(), "MOVE"))
        {
            int npts = m_BndExp[i]->GetTotPoints();
            Array<OneD, Array<OneD, NekDouble>> n(3);
            Array<OneD, Array<OneD, NekDouble>> x(3);
            for (int j = 0; j < 3; ++j)
            {
                n[j] = Array<OneD, NekDouble>(npts, 0.);
                x[j] = Array<OneD, NekDouble>(npts, 0.);
            }
            m_BndExp[i]->GetNormals(n);
            m_BndExp[i]->GetCoords(x[0], x[1], x[2]);
            for (int j = 0; j < 3; ++j)
            {
                Vmath::Sadd(npts, -m_pivot[j], x[j], 1, x[j], 1);
            }
            Array<OneD, NekDouble> atmp;
            for (int j = 0; j < ndim; ++j)
            {
                Vmath::Smul(npts, -1., n[j], 1,
                            atmp = m_boundValues[j] + offset, 1);
            }
            atmp = m_boundValues[bndsize - 2] + offset;
            Vmath::Vvtvvtm(npts, &x[1][0], 1, &n[0][0], 1, &x[0][0], 1,
                           &n[1][0], 1, &atmp[0], 1);
            if (ndim == 3)
            {
                atmp = m_boundValues[3] + offset;
                Vmath::Vvtvvtm(npts, &x[2][0], 1, &n[1][0], 1, &x[1][0], 1,
                               &n[2][0], 1, &atmp[0], 1);
                atmp = m_boundValues[4] + offset;
                Vmath::Vvtvvtm(npts, &x[0][0], 1, &n[2][0], 1, &x[2][0], 1,
                               &n[0][0], 1, &atmp[0], 1);
            }
            atmp = m_boundValues[bndsize - 1] + offset;
            for (int j = 0; j < 2; ++j)
            {
                Vmath::Vvtvp(npts, x[j], 1, n[j], 1, atmp, 1, atmp, 1);
            }
            Vmath::Neg(npts, atmp, 1);
            offset += npts;
        }
    }
}

References Nektar::ErrorUtil::efatal, m_boundValues, Nektar::SolverUtils::EquationSystem::m_fields, m_pivot, Nektar::SolverUtils::EquationSystem::m_session, Vmath::Neg(), NEKERROR, Vmath::Sadd(), Vmath::Smul(), Nektar::SolverUtils::EquationSystem::v_InitObject(), Vmath::Vvtvp(), and Vmath::Vvtvvtm().

Friends And Related Symbol Documentation

MemoryManager< LaplacePhi >

friend class MemoryManager< LaplacePhi >

friend

Class may only be instantiated through the MemoryManager.

Definition at line 1 of file LaplacePhi.h.

Member Data Documentation

className

std::string Nektar::LaplacePhi::className

static

Initial value:

=
    GetEquationSystemFactory().RegisterCreatorFunction("LaplacePhi",
                                                       LaplacePhi::create)

Name of class.

Definition at line 62 of file LaplacePhi.h.

m_boundValues

Array<OneD, Array<OneD, NekDouble> > Nektar::LaplacePhi::m_boundValues

private

Definition at line 81 of file LaplacePhi.h.

Referenced by calculateAddedMass(), setUserDefinedBC(), and v_InitObject().

m_factors

StdRegions::ConstFactorMap Nektar::LaplacePhi::m_factors

protected

Definition at line 65 of file LaplacePhi.h.

Referenced by LaplacePhi(), v_DoSolve(), and v_GenerateSummary().

m_pivot

Array<OneD, NekDouble> Nektar::LaplacePhi::m_pivot

private

Definition at line 82 of file LaplacePhi.h.

Referenced by v_InitObject().