#include <LinearisedAdvection.h>

Inheritance diagram for Nektar::LinearisedAdvection:

Collaboration diagram for Nektar::LinearisedAdvection:

Static Public Member Functions
static SolverUtils::AdvectionSharedPtr	create (std::string)
	Creates an instance of this class. More...

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

Protected Member Functions
DNekBlkMatSharedPtr	GetFloquetBlockMatrix (FloquetMatType mattype, bool UseContCoeffs=false) const

DNekBlkMatSharedPtr	GenFloquetBlockMatrix (FloquetMatType mattype, bool UseContCoeffs=false) const

	LinearisedAdvection ()

virtual	~LinearisedAdvection ()

virtual void	v_InitObject (LibUtilities::SessionReaderSharedPtr pSession, Array< OneD, MultiRegions::ExpListSharedPtr > pFields)
	Initialises the advection object. More...

virtual void	v_Advect (const int nConvectiveFields, const Array< OneD, MultiRegions::ExpListSharedPtr > &fields, const Array< OneD, Array< OneD, NekDouble > > &advVel, const Array< OneD, Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble &time)
	Advects a vector field. More...

virtual void	v_SetBaseFlow (const Array< OneD, Array< OneD, NekDouble > > &inarray)
	Overrides the base flow used during linearised advection. More...

void	UpdateBase (const NekDouble m_slices, const Array< OneD, const NekDouble > &inarray, Array< OneD, NekDouble > &outarray, const NekDouble m_time, const NekDouble m_period)

void	DFT (const string file, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const NekDouble m_slices)

void	ImportFldBase (std::string pInfile, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, int slice)
	Import Base flow. More...

Protected Attributes
LibUtilities::SessionReaderSharedPtr	m_session

MultiRegions::ProjectionType	m_projectionType

int	m_spacedim

int	m_expdim

Array< OneD, Array< OneD, NekDouble > >	m_baseflow
	Storage for base flow. More...

int	m_slices

NekDouble	m_period

Array< OneD, Array< OneD, NekDouble > >	m_interp

LibUtilities::NektarFFTSharedPtr	m_FFT

Array< OneD, NekDouble >	m_tmpIN

Array< OneD, NekDouble >	m_tmpOUT

bool	m_useFFTW

bool	m_SingleMode
	flag to determine if use single mode or not More...

bool	m_HalfMode
	flag to determine if use half mode or not More...

bool	m_MultipleModes
	flag to determine if use multiple mode or not More...

bool	m_homogen_dealiasing

MultiRegions::CoeffState	m_CoeffState

FloquetBlockMatrixMapShPtr	m_FloquetBlockMat

Protected Attributes inherited from Nektar::SolverUtils::Advection
AdvectionFluxVecCB	m_fluxVector
	Callback function to the flux vector (set when advection is in conservative form). More...

RiemannSolverSharedPtr	m_riemann
	Riemann solver for DG-type schemes. More...

int	m_spaceDim
	Storage for space dimension. Used for homogeneous extension. More...

Private Types
enum	FloquetMatType { eForwardsCoeff, eForwardsPhys }

enum	HomogeneousType { eHomogeneous1D, eHomogeneous2D, eHomogeneous3D, eNotHomogeneous }
	Parameter for homogeneous expansions. More...

typedef map< FloquetMatType, DNekBlkMatSharedPtr >	FloquetBlockMatrixMap
	A map between matrix keys and their associated block matrices. More...

typedef boost::shared_ptr< FloquetBlockMatrixMap >	FloquetBlockMatrixMapShPtr
	A shared pointer to a BlockMatrixMap. More...

Private Attributes
bool	m_useFFT
	flag to determine if use or not the FFT for transformations 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...

int	m_NumMode
	Mode to use in case of single mode analysis. More...

SpatialDomains::BoundaryConditionsSharedPtr	m_boundaryConditions

Friends
class	MemoryManager< LinearisedAdvection >

Additional Inherited Members
Public Member Functions inherited from Nektar::SolverUtils::Advection
SOLVER_UTILS_EXPORT void	InitObject (LibUtilities::SessionReaderSharedPtr pSession, Array< OneD, MultiRegions::ExpListSharedPtr > pFields)
	Interface function to initialise the advection object. More...

SOLVER_UTILS_EXPORT void	Advect (const int nConvectiveFields, const Array< OneD, MultiRegions::ExpListSharedPtr > &fields, const Array< OneD, Array< OneD, NekDouble > > &advVel, const Array< OneD, Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const NekDouble &time)
	Interface function to advect the vector field. More...

template<typename FuncPointerT , typename ObjectPointerT >
void	SetFluxVector (FuncPointerT func, ObjectPointerT obj)
	Set the flux vector callback function. More...

void	SetRiemannSolver (RiemannSolverSharedPtr riemann)
	Set a Riemann solver object for this advection object. More...

void	SetFluxVector (AdvectionFluxVecCB fluxVector)
	Set the flux vector callback function. More...

void	SetBaseFlow (const Array< OneD, Array< OneD, NekDouble > > &inarray)
	Set the base flow used for linearised advection objects. More...

Detailed Description

Definition at line 47 of file LinearisedAdvection.h.

Member Typedef Documentation

typedef map< FloquetMatType, DNekBlkMatSharedPtr> Nektar::LinearisedAdvection::FloquetBlockMatrixMap

private

A map between matrix keys and their associated block matrices.

Definition at line 57 of file LinearisedAdvection.h.

typedef boost::shared_ptr<FloquetBlockMatrixMap> Nektar::LinearisedAdvection::FloquetBlockMatrixMapShPtr

private

A shared pointer to a BlockMatrixMap.

Definition at line 59 of file LinearisedAdvection.h.

Member Enumeration Documentation

enum Nektar::LinearisedAdvection::FloquetMatType

private

Enumerator
eForwardsCoeff
eForwardsPhys

Definition at line 49 of file LinearisedAdvection.h.

     {
         eForwardsCoeff,
         eForwardsPhys
     };

enum Nektar::LinearisedAdvection::HomogeneousType

private

Parameter for homogeneous expansions.

Enumerator
eHomogeneous1D
eHomogeneous2D
eHomogeneous3D
eNotHomogeneous

Definition at line 149 of file LinearisedAdvection.h.

     {
         eHomogeneous1D,
         eHomogeneous2D,
         eHomogeneous3D,
         eNotHomogeneous
     };

Constructor & Destructor Documentation

Nektar::LinearisedAdvection::LinearisedAdvection ( )

protected

Constructor. Creates ...

Parameters

Definition at line 64 of file LinearisedAdvection.cpp.

                                         :
     Advection()
 {
 }

Nektar::LinearisedAdvection::~LinearisedAdvection ( )

protectedvirtual

Definition at line 274 of file LinearisedAdvection.cpp.

275 {

276 }

Member Function Documentation

static SolverUtils::AdvectionSharedPtr Nektar::LinearisedAdvection::create ( std::string )

inlinestatic

Creates an instance of this class.

Definition at line 65 of file LinearisedAdvection.h.

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

                                                            {
         return MemoryManager<LinearisedAdvection>::AllocateSharedPtr();
     }

void Nektar::LinearisedAdvection::DFT	(	const string	file,
		Array< OneD, MultiRegions::ExpListSharedPtr > &	pFields,
		const NekDouble	m_slices
	)

protected

Definition at line 789 of file LinearisedAdvection.cpp.

References ASSERTL0, Nektar::LibUtilities::NekFactory< tKey, tBase, >::CreateInstance(), eForwardsPhys, Nektar::eWrapper, GetFloquetBlockMatrix(), Nektar::LibUtilities::GetNektarFFTFactory(), ImportFldBase(), m_baseflow, m_FFT, m_interp, m_slices, m_tmpIN, m_tmpOUT, Vmath::Smul(), Vmath::Vcopy(), and Vmath::Zero().

Referenced by v_InitObject().

 {
     int npoints=m_baseflow[0].num_elements();
 
     //Convected fields
     int ConvectedFields=m_baseflow.num_elements()-1;
 
     m_interp= Array<OneD, Array<OneD, NekDouble> > (ConvectedFields);
     for(int i=0; i<ConvectedFields;++i)
     {
         m_interp[i]=Array<OneD,NekDouble>(npoints*m_slices);
     }
 
     // Import the slides into auxiliary vector
     // The base flow should be stored in the form "filename_%d.ext"
     // A subdirectory can also be included, such as "dir/filename_%d.ext"
     size_t found = file.find("%d");
     ASSERTL0(found != string::npos && file.find("%d", found+1) == string::npos,
              "Since N_slices is specified, the filename provided for function "
              "'BaseFlow' must include exactly one instance of the format "
              "specifier '%d', to index the time-slices.");
     char* buffer = new char[file.length() + 8];
     for (int i = 0; i < m_slices; ++i)
     {
         sprintf(buffer, file.c_str(), i);
         ImportFldBase(buffer,pFields,i);
     }
     delete[] buffer;
 
 
     // Discrete Fourier Transform of the fields
     for(int k=0; k< ConvectedFields;++k)
     {
 #ifdef NEKTAR_USING_FFTW
 
         //Discrete Fourier Transform using FFTW
         Array<OneD, NekDouble> fft_in(npoints*m_slices);
         Array<OneD, NekDouble> fft_out(npoints*m_slices);
 
         Array<OneD, NekDouble> m_tmpIN(m_slices);
         Array<OneD, NekDouble> m_tmpOUT(m_slices);
 
         //Shuffle the data
         for(int j= 0; j < m_slices; ++j)
         {
             Vmath::Vcopy(npoints,&m_interp[k][j*npoints],1,&(fft_in[j]),m_slices);
         }
 
         m_FFT = LibUtilities::GetNektarFFTFactory().CreateInstance("NekFFTW", m_slices);
 
         //FFT Transform
         for(int i=0; i<npoints; i++)
         {
             m_FFT->FFTFwdTrans(m_tmpIN =fft_in + i*m_slices, m_tmpOUT =fft_out + i*m_slices);
 
         }
 
         //Reshuffle data
         for(int s = 0; s < m_slices; ++s)
         {
             Vmath::Vcopy(npoints,&fft_out[s],m_slices,&m_interp[k][s*npoints],1);
 
         }
 
         Vmath::Zero(fft_in.num_elements(),&fft_in[0],1);
         Vmath::Zero(fft_out.num_elements(),&fft_out[0],1);
 #else
         //Discrete Fourier Transform using MVM
         DNekBlkMatSharedPtr blkmat;
         blkmat = GetFloquetBlockMatrix(eForwardsPhys);
 
         int nrows = blkmat->GetRows();
         int ncols = blkmat->GetColumns();
 
         Array<OneD, NekDouble> sortedinarray(ncols);
         Array<OneD, NekDouble> sortedoutarray(nrows);
 
         //Shuffle the data
         for(int j= 0; j < m_slices; ++j)
         {
             Vmath::Vcopy(npoints,&m_interp[k][j*npoints],1,&(sortedinarray[j]),m_slices);
         }
 
         // Create NekVectors from the given data arrays
         NekVector<NekDouble> in (ncols,sortedinarray,eWrapper);
         NekVector<NekDouble> out(nrows,sortedoutarray,eWrapper);
 
         // Perform matrix-vector multiply.
         out = (*blkmat)*in;
 
         //Reshuffle data
         for(int s = 0; s < m_slices; ++s)
         {
             Vmath::Vcopy(npoints,&sortedoutarray[s],m_slices,&m_interp[k][s*npoints],1);
         }
 
         for(int r=0; r<sortedinarray.num_elements();++r)
         {
             sortedinarray[0]=0;
             sortedoutarray[0]=0;
         }
 
 #endif
 
         //scaling of the Fourier coefficients
         NekDouble j=-1;
         for (int i = 2; i < m_slices; i += 2)
         {
             Vmath::Smul(2*npoints,j,&m_interp[k][i*npoints],1,&m_interp[k][i*npoints],1);
             j=-j;
 
         }
 
     }
 
 }

DNekBlkMatSharedPtr Nektar::LinearisedAdvection::GenFloquetBlockMatrix	(	FloquetMatType	mattype,
		bool	UseContCoeffs = `false`
	)		const

protected

DNekBlkMatSharedPtr Nektar::LinearisedAdvection::GetFloquetBlockMatrix	(	FloquetMatType	mattype,
		bool	UseContCoeffs = `false`
	)		const

protected

Definition at line 750 of file LinearisedAdvection.cpp.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), Nektar::StdRegions::StdExpansion::DetShapeType(), Nektar::eDIAGONAL, Nektar::LibUtilities::eFourier, Nektar::LibUtilities::eFourierEvenlySpaced, Nektar::StdRegions::eFwdTrans, Nektar::StdRegions::StdExpansion::GetStdMatrix(), m_baseflow, and m_slices.

Referenced by DFT().

 {
     DNekMatSharedPtr    loc_mat;
     DNekBlkMatSharedPtr BlkMatrix;
     int n_exp = 0;
 
     n_exp = m_baseflow[0].num_elements(); // will operatore on m_phys
 
     Array<OneD,unsigned int> nrows(n_exp);
     Array<OneD,unsigned int> ncols(n_exp);
 
     nrows = Array<OneD, unsigned int>(n_exp,m_slices);
     ncols = Array<OneD, unsigned int>(n_exp,m_slices);
 
     MatrixStorage blkmatStorage = eDIAGONAL;
     BlkMatrix = MemoryManager<DNekBlkMat>
         ::AllocateSharedPtr(nrows,ncols,blkmatStorage);
 
 
     const LibUtilities::PointsKey Pkey(m_slices,LibUtilities::eFourierEvenlySpaced);
     const LibUtilities::BasisKey  BK(LibUtilities::eFourier,m_slices,Pkey);
     StdRegions::StdSegExp StdSeg(BK);
 
     StdRegions::StdMatrixKey matkey(StdRegions::eFwdTrans,
                                     StdSeg.DetShapeType(),
                                     StdSeg);
 
     loc_mat = StdSeg.GetStdMatrix(matkey);
 
     // set up array of block matrices.
     for(int i = 0; i < n_exp; ++i)
     {
         BlkMatrix->SetBlock(i,i,loc_mat);
     }
 
     return BlkMatrix;
 }

void Nektar::LinearisedAdvection::ImportFldBase	(	std::string	pInfile,
		Array< OneD, MultiRegions::ExpListSharedPtr > &	pFields,
		int	slice
	)

protected

Import Base flow.

Import field from infile and load into m_fields. This routine will also perform a BwdTrans to ensure data is in both the physical and coefficient storage.

Parameters

infile Filename to read.

Definition at line 615 of file LinearisedAdvection.cpp.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), ASSERTL0, m_baseflow, m_HalfMode, m_interp, m_MultipleModes, m_npointsZ, m_session, m_SingleMode, Vmath::Vcopy(), and Vmath::Zero().

Referenced by DFT(), and v_InitObject().

 {
     std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef;
     std::vector<std::vector<NekDouble> > FieldData;
 
     int nqtot = m_baseflow[0].num_elements();
     int nvar = m_session->GetVariables().size();
     int s;
     Array<OneD, NekDouble> tmp_coeff(pFields[0]->GetNcoeffs(), 0.0);
 
     //Get Homogeneous
     LibUtilities::FieldIOSharedPtr fld =
     MemoryManager<LibUtilities::FieldIO>::AllocateSharedPtr(
                                                     m_session->GetComm());
     fld->Import(pInfile, FieldDef, FieldData);
 
 
     if(m_session->DefinesSolverInfo("HOMOGENEOUS"))
     {
         std::string HomoStr = m_session->GetSolverInfo("HOMOGENEOUS");
     }
 
     // copy FieldData into m_fields
     for(int j = 0; j < nvar; ++j)
     {
         for(int i = 0; i < FieldDef.size(); ++i)
         {
             if((m_session->DefinesSolverInfo("HOMOGENEOUS") &&
                (m_session->GetSolverInfo("HOMOGENEOUS")=="HOMOGENEOUS1D" ||
                 m_session->GetSolverInfo("HOMOGENEOUS")=="1D" ||
                 m_session->GetSolverInfo("HOMOGENEOUS")=="Homo1D")) &&
                  m_MultipleModes==false)
             {
                 // w-component must be ignored and set to zero.
                 if (j != nvar - 2)
                 {
                     // p component (it is 4th variable of the 3D and corresponds 3nd variable of 2D)
                     s = (j == nvar - 1) ? 2 : j;
 
                     //extraction of the 2D
                     pFields[j]->ExtractDataToCoeffs(
                                         FieldDef[i],
                                         FieldData[i],
                                         FieldDef[i]->m_fields[s],
                                         tmp_coeff);
 
                 }
 
                 //Put zero on higher modes
                 int ncplane = (pFields[0]->GetNcoeffs()) / m_npointsZ;
 
                 if (m_npointsZ > 2)
                 {
                     Vmath::Zero(ncplane*(m_npointsZ-2),
                                 &tmp_coeff[2*ncplane], 1);
                 }
             }
             // 2D cases and Homogeneous1D Base Flows
             else
             {
                 bool flag = FieldDef[i]->m_fields[j] ==
                                                 m_session->GetVariable(j);
 
                 ASSERTL0(flag, (std::string("Order of ") + pInfile
                                 + std::string(" data and that defined in "
                                               "m_boundaryconditions differs")).c_str());
 
                 pFields[j]->ExtractDataToCoeffs(FieldDef[i], FieldData[i],
                                                FieldDef[i]->m_fields[j],
                                                tmp_coeff);
             }
         }
 
         if(m_SingleMode || m_HalfMode)
         {
             //pFields[j]->SetWaveSpace(true);
 
             pFields[j]->GetPlane(0)->BwdTrans(tmp_coeff, m_baseflow[j]);
 
             if(m_SingleMode)
             {
                 //copy the bwd into the second plane for single Mode Analysis
                 int ncplane=(pFields[0]->GetNpoints())/m_npointsZ;
                 Vmath::Vcopy(ncplane,&m_baseflow[j][0],1,&m_baseflow[j][ncplane],1);
             }
         }
         else
         {
             bool oldwavespace = pFields[j]->GetWaveSpace();
             pFields[j]->SetWaveSpace(false);
             pFields[j]->BwdTrans(tmp_coeff, m_baseflow[j]);
             pFields[j]->SetWaveSpace(oldwavespace);
         }
     }
 
     if(m_session->DefinesParameter("N_slices"))
     {
         int nConvectiveFields = pFields.num_elements()-1;
 
         for(int i=0; i<nConvectiveFields;++i)
         {
 
             Vmath::Vcopy(nqtot, &m_baseflow[i][0], 1, &m_interp[i][slice*nqtot], 1);
         }
 
     }
 }

void Nektar::LinearisedAdvection::UpdateBase	(	const NekDouble	m_slices,
		const Array< OneD, const NekDouble > &	inarray,
		Array< OneD, NekDouble > &	outarray,
		const NekDouble	m_time,
		const NekDouble	m_period
	)

protected

Definition at line 725 of file LinearisedAdvection.cpp.

References m_baseflow, m_period, m_slices, Vmath::Svtvp(), and Vmath::Vcopy().

Referenced by v_Advect().

 {
     int npoints=m_baseflow[0].num_elements();
 
     NekDouble BetaT=2*M_PI*fmod (m_time, m_period) / m_period;
     NekDouble phase;
     Array<OneD, NekDouble> auxiliary(npoints);
 
     Vmath::Vcopy(npoints,&inarray[0],1,&outarray[0],1);
     Vmath::Svtvp(npoints, cos(0.5*m_slices*BetaT),&inarray[npoints],1,&outarray[0],1,&outarray[0],1);
 
     for (int i = 2; i < m_slices; i += 2)
     {
         phase = (i>>1) * BetaT;
 
         Vmath::Svtvp(npoints, cos(phase),&inarray[i*npoints],1,&outarray[0],1,&outarray[0],1);
         Vmath::Svtvp(npoints, sin(phase), &inarray[(i+1)*npoints], 1, &outarray[0], 1,&outarray[0],1);
     }
 
 }

void Nektar::LinearisedAdvection::v_Advect	(	const int	nConvectiveFields,
		const Array< OneD, MultiRegions::ExpListSharedPtr > &	fields,
		const Array< OneD, Array< OneD, NekDouble > > &	advVel,
		const Array< OneD, Array< OneD, NekDouble > > &	inarray,
		Array< OneD, Array< OneD, NekDouble > > &	outarray,
		const NekDouble &	time
	)

protectedvirtual

Advects a vector field.

Implements Nektar::SolverUtils::Advection.

Definition at line 281 of file LinearisedAdvection.cpp.

References ASSERTL0, ASSERTL1, Nektar::LibUtilities::eFunctionTypeFile, m_baseflow, m_CoeffState, m_HalfMode, m_homogen_dealiasing, m_interp, m_period, m_session, m_SingleMode, m_slices, Vmath::Neg(), UpdateBase(), Vmath::Vadd(), Vmath::Vmul(), and Vmath::Vvtvp().

 {
     int nqtot            = fields[0]->GetTotPoints();
     ASSERTL1(nConvectiveFields == inarray.num_elements(),"Number of convective fields and Inarray are not compatible");
 
     Array<OneD, NekDouble > Deriv = Array<OneD, NekDouble> (nqtot*nConvectiveFields);
 
     for(int n = 0; n < nConvectiveFields; ++n)
     {
         int ndim       = advVel.num_elements();
         int nPointsTot = fields[0]->GetNpoints();
 
         Array<OneD, NekDouble> grad0,grad1,grad2;
 
         //Evaluation of the gradiend of each component of the base flow
         //\nabla U
         Array<OneD, NekDouble> grad_base_u0,grad_base_u1,grad_base_u2;
 
         // \nabla V
         Array<OneD, NekDouble> grad_base_v0,grad_base_v1,grad_base_v2;
 
         // \nabla W
         Array<OneD, NekDouble> grad_base_w0,grad_base_w1,grad_base_w2;
 
         grad0 = Array<OneD, NekDouble> (nPointsTot);
         grad_base_u0 = Array<OneD, NekDouble> (nPointsTot);
         grad_base_v0 = Array<OneD, NekDouble> (nPointsTot);
         grad_base_w0 = Array<OneD, NekDouble> (nPointsTot);
 
         //Evaluation of the base flow for periodic cases
         //(it requires fld files)
         if(m_slices>1)
         {
             if (m_session->GetFunctionType("BaseFlow", 0)
                 == LibUtilities::eFunctionTypeFile)
             {
                 for(int i=0; i<ndim;++i)
                 {
                     UpdateBase(m_slices,m_interp[i],m_baseflow[i],time,m_period);
                 }
             }
             else
             {
                 ASSERTL0(false, "Periodic Base flow requires filename_ files");
             }
         }
 
 
         //Evaluate the linearised advection term
         switch(ndim)
         {
             // 1D
         case 1:
             fields[0]->PhysDeriv(inarray[n],grad0);
             fields[0]->PhysDeriv(m_baseflow[0],grad_base_u0);
             //Evaluate  U du'/dx
             Vmath::Vmul(nPointsTot,grad0,1,m_baseflow[0],1,outarray[n],1);
             //Evaluate U du'/dx+ u' dU/dx
             Vmath::Vvtvp(nPointsTot,grad_base_u0,1,advVel[0],1,outarray[n],1,outarray[n],1);
             break;
 
             //2D
         case 2:
             grad1 = Array<OneD, NekDouble> (nPointsTot);
             grad_base_u1 = Array<OneD, NekDouble> (nPointsTot);
             grad_base_v1 = Array<OneD, NekDouble> (nPointsTot);
             fields[0]->PhysDeriv(inarray[n],grad0,grad1);
 
             //Derivates of the base flow
             fields[0]-> PhysDeriv(m_baseflow[0], grad_base_u0, grad_base_u1);
             fields[0]-> PhysDeriv(m_baseflow[1], grad_base_v0, grad_base_v1);
 
             //Since the components of the velocity are passed one by
             //one, it is necessary to distinguish which term is
             //consider
             switch (n)
             {
                 //x-equation
             case 0:
                 // Evaluate U du'/dx
                 Vmath::Vmul (nPointsTot,grad0,1,m_baseflow[0],1,outarray[n],1);
                 //Evaluate U du'/dx+ V du'/dy
                 Vmath::Vvtvp(nPointsTot,grad1,1,m_baseflow[1],1,outarray[n],1,outarray[n],1);
                 //Evaluate (U du'/dx+ V du'/dy)+u' dU/dx
                 Vmath::Vvtvp(nPointsTot,grad_base_u0,1,advVel[0],1,outarray[n],1,outarray[n],1);
                 //Evaluate (U du'/dx+ V du'/dy +u' dU/dx)+v' dU/dy
                 Vmath::Vvtvp(nPointsTot,grad_base_u1,1,advVel[1],1,outarray[n],1,outarray[n],1);
                 break;
 
                 //y-equation
             case 1:
                 // Evaluate U dv'/dx
                 Vmath::Vmul (nPointsTot,grad0,1,m_baseflow[0],1,outarray[n],1);
                 //Evaluate U dv'/dx+ V dv'/dy
                 Vmath::Vvtvp(nPointsTot,grad1,1,m_baseflow[1],1,outarray[n],1,outarray[n],1);
                 //Evaluate (U dv'/dx+ V dv'/dy)+u' dV/dx
                 Vmath::Vvtvp(nPointsTot,grad_base_v0,1,advVel[0],1,outarray[n],1,outarray[n],1);
                 //Evaluate (U dv'/dx+ V dv'/dy +u' dv/dx)+v' dV/dy
                 Vmath::Vvtvp(nPointsTot,grad_base_v1,1,advVel[1],1,outarray[n],1,outarray[n],1);
                 break;
             }
             break;
 
             //3D
         case 3:
         {
             grad1 = Array<OneD, NekDouble> (nPointsTot);
             grad2 = Array<OneD, NekDouble> (nPointsTot);
             grad_base_u1 = Array<OneD, NekDouble> (nPointsTot);
             grad_base_v1 = Array<OneD, NekDouble> (nPointsTot);
             grad_base_w1 = Array<OneD, NekDouble> (nPointsTot);
 
             grad_base_u2 = Array<OneD, NekDouble> (nPointsTot);
             grad_base_v2 = Array<OneD, NekDouble> (nPointsTot);
             grad_base_w2 = Array<OneD, NekDouble> (nPointsTot);
 
             // Differentiate base flow in physical space
             bool oldwavespace = fields[0]->GetWaveSpace();
             fields[0]->SetWaveSpace(false);
             fields[0]->PhysDeriv(m_baseflow[0],
                                  grad_base_u0, grad_base_u1, grad_base_u2);
             fields[0]->PhysDeriv(m_baseflow[1],
                                  grad_base_v0, grad_base_v1, grad_base_v2);
             fields[0]->PhysDeriv(m_baseflow[2],
                                  grad_base_w0, grad_base_w1, grad_base_w2);
             fields[0]->SetWaveSpace(oldwavespace);
 
             //HalfMode has W(x,y,t)=0
             if(m_HalfMode || m_SingleMode)
             {
                 for(int i=0; i<grad_base_u2.num_elements();++i)
                 {
                     grad_base_u2[i]=0;
                     grad_base_v2[i]=0;
                     grad_base_w2[i]=0;
                 }
             }
 
             fields[0]->PhysDeriv(inarray[n], grad0, grad1, grad2);
             if (oldwavespace)
             {
                 fields[0]->HomogeneousBwdTrans(grad0, grad0);
                 fields[0]->HomogeneousBwdTrans(grad1, grad1);
                 fields[0]->HomogeneousBwdTrans(grad2, grad2);
             }
 
             switch (n)
             {
                 //x-equation
             case 0:
                 if(m_homogen_dealiasing)
                 {
                     //U du'/dx
                     fields[0]->DealiasedProd(m_baseflow[0],grad0,grad0,m_CoeffState);
 
                     //V du'/dy
                     fields[0]->DealiasedProd(m_baseflow[1],grad1,grad1,m_CoeffState);
 
                     //W du'/dx
                     fields[0]->DealiasedProd(m_baseflow[2],grad2,grad2,m_CoeffState);
 
                     // u' dU/dx
                     fields[0]->DealiasedProd(advVel[0],grad_base_u0,grad_base_u0,m_CoeffState);
                     // v' dU/dy
                     fields[0]->DealiasedProd(advVel[1],grad_base_u1,grad_base_u1,m_CoeffState);
                     // w' dU/dz
                     fields[0]->DealiasedProd(advVel[2],grad_base_u2,grad_base_u2,m_CoeffState);
 
                     Vmath::Vadd(nPointsTot,grad0,1,grad1,1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad2,1,outarray[n],1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad_base_u0,1,outarray[n],1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad_base_u1,1,outarray[n],1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad_base_u2,1,outarray[n],1,outarray[n],1);
                 }
                 else
                 {
                     //Evaluate U du'/dx
                     Vmath::Vmul (nPointsTot, grad0,       1,  m_baseflow[0], 1,
                                              outarray[n], 1);
                     //Evaluate U du'/dx+ V du'/dy
                     Vmath::Vvtvp(nPointsTot, grad1,       1,  m_baseflow[1], 1,
                                              outarray[n], 1,  outarray[n],   1);
                     //Evaluate (U du'/dx+ V du'/dy)+u' dU/dx
                     Vmath::Vvtvp(nPointsTot,grad_base_u0,1,advVel[0],1,outarray[n],1,outarray[n],1);
                     //Evaluate (U du'/dx+ V du'/dy +u' dU/dx)+v' dU/dy
                     Vmath::Vvtvp(nPointsTot,grad_base_u1,1,advVel[1],1,outarray[n],1,outarray[n],1);
                     //Evaluate (U du'/dx+ V du'/dy +u' dU/dx +v' dU/dy) + W du'/dz
                     Vmath::Vvtvp(nPointsTot, grad2,       1,  m_baseflow[2], 1,
                                              outarray[n], 1,  outarray[n],   1);
                     //Evaluate (U du'/dx+ V du'/dy +u' dU/dx +v' dU/dy + W du'/dz)+ w' dU/dz
                     Vmath::Vvtvp(nPointsTot,grad_base_u2,1,advVel[2],1,outarray[n],1,outarray[n],1);
                 }
                 break;
                 //y-equation
             case 1:
                 if(m_homogen_dealiasing)
                 {
                     //U dv'/dx
                     fields[0]->DealiasedProd(m_baseflow[0],grad0,grad0,m_CoeffState);
                     //V dv'/dy
                     fields[0]->DealiasedProd(m_baseflow[1],grad1,grad1,m_CoeffState);
                     //W dv'/dx
                     fields[0]->DealiasedProd(m_baseflow[2],grad2,grad2,m_CoeffState);
                     // u' dV/dx
                     fields[0]->DealiasedProd(advVel[0],grad_base_v0,grad_base_v0,m_CoeffState);
                     // v' dV/dy
                     fields[0]->DealiasedProd(advVel[1],grad_base_v1,grad_base_v1,m_CoeffState);
                     // w' dV/dz
                     fields[0]->DealiasedProd(advVel[2],grad_base_v2,grad_base_v2,m_CoeffState);
 
                     Vmath::Vadd(nPointsTot,grad0,1,grad1,1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad2,1,outarray[n],1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad_base_v0,1,outarray[n],1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad_base_v1,1,outarray[n],1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad_base_v2,1,outarray[n],1,outarray[n],1);
                 }
                 else
                 {
                     //Evaluate U dv'/dx
                     Vmath::Vmul (nPointsTot, grad0,       1,  m_baseflow[0], 1,
                                              outarray[n], 1);
                     //Evaluate U dv'/dx+ V dv'/dy
                     Vmath::Vvtvp(nPointsTot, grad1,       1,  m_baseflow[1], 1,
                                              outarray[n], 1,  outarray[n],   1);
                     //Evaluate (U dv'/dx+ V dv'/dy)+u' dV/dx
                     Vmath::Vvtvp(nPointsTot,grad_base_v0,1,advVel[0],1,outarray[n],1,outarray[n],1);
                     //Evaluate (U du'/dx+ V du'/dy +u' dV/dx)+v' dV/dy
                     Vmath::Vvtvp(nPointsTot,grad_base_v1,1,advVel[1],1,outarray[n],1,outarray[n],1);
                     //Evaluate (U du'/dx+ V dv'/dy +u' dV/dx +v' dV/dy) + W du'/dz
                     Vmath::Vvtvp(nPointsTot, grad2,       1,  m_baseflow[2], 1,
                                              outarray[n], 1,  outarray[n],   1);
                     //Evaluate (U du'/dx+ V dv'/dy +u' dV/dx +v' dV/dy + W dv'/dz)+ w' dV/dz
                     Vmath::Vvtvp(nPointsTot,grad_base_v2,1,advVel[2],1,outarray[n],1,outarray[n],1);
                 }
                 break;
 
                 //z-equation
             case 2:
                 if(m_homogen_dealiasing)
                 {
                     //U dw'/dx
                     fields[0]->DealiasedProd(m_baseflow[0],grad0,grad0,m_CoeffState);
                     //V dw'/dy
                     fields[0]->DealiasedProd(m_baseflow[1],grad1,grad1,m_CoeffState);
                     //W dw'/dx
                     fields[0]->DealiasedProd(m_baseflow[2],grad2,grad2,m_CoeffState);
                     // u' dW/dx
                     fields[0]->DealiasedProd(advVel[0],grad_base_w0,grad_base_w0,m_CoeffState);
                     // v' dW/dy
                     fields[0]->DealiasedProd(advVel[1],grad_base_w1,grad_base_w1,m_CoeffState);
                     // w' dW/dz
                     fields[0]->DealiasedProd(advVel[2],grad_base_w2,grad_base_w2,m_CoeffState);
 
                     Vmath::Vadd(nPointsTot,grad0,1,grad1,1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad2,1,outarray[n],1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad_base_w0,1,outarray[n],1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad_base_w1,1,outarray[n],1,outarray[n],1);
                     Vmath::Vadd(nPointsTot,grad_base_w2,1,outarray[n],1,outarray[n],1);
                 }
                 else
                 {
                     //Evaluate U dw'/dx
                     Vmath::Vmul (nPointsTot, grad0,        1, m_baseflow[0], 1,
                                              outarray[n],  1);
                     //Evaluate U dw'/dx+ V dw'/dx
                     Vmath::Vvtvp(nPointsTot, grad1,        1, m_baseflow[1], 1,
                                              outarray[n],  1, outarray[n],   1);
                     //Evaluate (U dw'/dx+ V dw'/dx)+u' dW/dx
                     Vmath::Vvtvp(nPointsTot,grad_base_w0,1,advVel[0],1,outarray[n],1,outarray[n],1);
                     //Evaluate (U dw'/dx+ V dw'/dx +w' dW/dx)+v' dW/dy
                     Vmath::Vvtvp(nPointsTot,grad_base_w1,1,advVel[1],1,outarray[n],1,outarray[n],1);
                     //Evaluate (U dw'/dx+ V dw'/dx +u' dW/dx +v' dW/dy) + W dw'/dz
                     Vmath::Vvtvp(nPointsTot, grad2,        1, m_baseflow[2], 1,
                                              outarray[n],  1, outarray[n],   1);
                     //Evaluate (U dw'/dx+ V dw'/dx +u' dW/dx +v' dW/dy + W dw'/dz)+ w' dW/dz
                     Vmath::Vvtvp(nPointsTot,grad_base_w2,1,advVel[2],1,outarray[n],1,outarray[n],1);
                 }
                 break;
             }
 
             if (oldwavespace)
             {
                 fields[0]->HomogeneousFwdTrans(outarray[n],outarray[n]);
             }
             break;
         }
         default:
             ASSERTL0(false,"dimension unknown");
         }
 
         Vmath::Neg(nqtot,outarray[n],1);
     }
 }

void Nektar::LinearisedAdvection::v_InitObject	(	LibUtilities::SessionReaderSharedPtr	pSession,
		Array< OneD, MultiRegions::ExpListSharedPtr >	pFields
	)

protectedvirtual

Initialises the advection object.

This function should be overridden in derived classes to initialise the specific advection data members. However, this base class function should be called as the first statement of the overridden function to ensure the base class is correctly initialised in order.

Parameters

pSession	Session information.
pFields	Expansion lists for scalar fields.

Reimplemented from Nektar::SolverUtils::Advection.

Definition at line 70 of file LinearisedAdvection.cpp.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), ASSERTL0, DFT(), Nektar::MultiRegions::eDiscontinuous, Nektar::LibUtilities::eFunctionTypeFile, Nektar::MultiRegions::eGalerkin, eHomogeneous1D, eHomogeneous2D, eHomogeneous3D, Nektar::MultiRegions::eLocal, eNotHomogeneous, ImportFldBase(), m_baseflow, m_boundaryConditions, m_CoeffState, m_expdim, m_HalfMode, m_HomoDirec, m_homogen_dealiasing, m_HomogeneousType, m_LhomX, m_LhomY, m_LhomZ, m_MultipleModes, m_npointsX, m_npointsY, m_npointsZ, m_period, m_projectionType, m_session, m_SingleMode, m_slices, m_spacedim, and m_useFFT.

 {
     Advection::v_InitObject(pSession, pFields);
 
     m_session            = pSession;
     m_boundaryConditions = MemoryManager<SpatialDomains::BoundaryConditions>
         ::AllocateSharedPtr(m_session, pFields[0]->GetGraph());
     m_spacedim           = pFields[0]->GetGraph()->GetSpaceDimension();
     m_expdim             = pFields[0]->GetGraph()->GetMeshDimension();
     m_CoeffState         = MultiRegions::eLocal;
 
     //Setting parameters for homogeneous problems
     m_HomoDirec          = 0;
     m_useFFT             = false;
     m_HomogeneousType    = eNotHomogeneous;
     m_SingleMode         = false;
     m_HalfMode           = false;
     m_MultipleModes      = false;
     m_homogen_dealiasing = false;
 
     if(m_session->DefinesSolverInfo("HOMOGENEOUS"))
     {
         std::string HomoStr = m_session->GetSolverInfo("HOMOGENEOUS");
         m_spacedim          = 3;
 
         if((HomoStr == "HOMOGENEOUS1D")||(HomoStr == "Homogeneous1D")||
            (HomoStr == "1D")||(HomoStr == "Homo1D"))
         {
             m_HomogeneousType = eHomogeneous1D;
             m_LhomZ           = m_session->GetParameter("LZ");
             m_HomoDirec       = 1;
 
             m_homogen_dealiasing = pSession->DefinesSolverInfo("DEALIASING");
 
             if(m_session->DefinesSolverInfo("ModeType"))
             {
                 m_session->MatchSolverInfo("ModeType","SingleMode",m_SingleMode,false);
                 m_session->MatchSolverInfo("ModeType","HalfMode",m_HalfMode,false);
                 m_session->MatchSolverInfo("ModeType","MultipleModes",m_MultipleModes,false);
             }
 
             if(m_session->DefinesSolverInfo("ModeType"))
             {
                 if(m_SingleMode)
                 {
                     m_npointsZ=2;
 
                 }
                 else if(m_HalfMode)
                 {
                     m_npointsZ=1;
 
                 }
                 else if(m_MultipleModes)
                 {
                     m_npointsZ        = m_session->GetParameter("HomModesZ");
                 }
                 else
                 {
                     ASSERTL0(false, "SolverInfo ModeType not valid");
 
 
                 }
             }
             else
             {
                 m_session->LoadParameter("HomModesZ",m_npointsZ);
 
             }
 
         }
 
         if((HomoStr == "HOMOGENEOUS2D")||(HomoStr == "Homogeneous2D")||
            (HomoStr == "2D")||(HomoStr == "Homo2D"))
         {
             m_HomogeneousType = eHomogeneous2D;
             m_session->LoadParameter("HomModesY", m_npointsY);
             m_session->LoadParameter("LY",        m_LhomY);
             m_session->LoadParameter("HomModesZ", m_npointsZ);
             m_session->LoadParameter("LZ",        m_LhomZ);
             m_HomoDirec       = 2;
         }
 
         if((HomoStr == "HOMOGENEOUS3D")||(HomoStr == "Homogeneous3D")||
            (HomoStr == "3D")||(HomoStr == "Homo3D"))
         {
             m_HomogeneousType = eHomogeneous3D;
             m_session->LoadParameter("HomModesX",m_npointsX);
             m_session->LoadParameter("LX",       m_LhomX   );
             m_session->LoadParameter("HomModesY",m_npointsY);
             m_session->LoadParameter("LY",       m_LhomY   );
             m_session->LoadParameter("HomModesZ",m_npointsZ);
             m_session->LoadParameter("LZ",       m_LhomZ   );
             m_HomoDirec       = 3;
         }
 
         if(m_session->DefinesSolverInfo("USEFFT"))
         {
             m_useFFT = true;
         }
     }
     else
     {
         m_npointsZ = 1; // set to default value so can use to identify 2d or 3D (homogeneous) expansions
     }
 
     if(m_session->DefinesSolverInfo("PROJECTION"))
     {
         std::string ProjectStr
         = m_session->GetSolverInfo("PROJECTION");
 
         if((ProjectStr == "Continuous")||(ProjectStr == "Galerkin")||
            (ProjectStr == "CONTINUOUS")||(ProjectStr == "GALERKIN"))
         {
             m_projectionType = MultiRegions::eGalerkin;
         }
         else if(ProjectStr == "DisContinuous")
         {
             m_projectionType = MultiRegions::eDiscontinuous;
         }
         else
         {
             ASSERTL0(false,"PROJECTION value not recognised");
         }
     }
     else
     {
         cerr << "Projection type not specified in SOLVERINFO,"
             "defaulting to continuous Galerkin" << endl;
         m_projectionType = MultiRegions::eGalerkin;
     }
 
     int nvar = m_session->GetVariables().size();
     m_baseflow = Array<OneD, Array<OneD, NekDouble> >(nvar);
     for (int i = 0; i < nvar; ++i)
     {
         m_baseflow[i] = Array<OneD, NekDouble>(pFields[i]->GetTotPoints(), 0.0);
     }
 
     ASSERTL0(m_session->DefinesFunction("BaseFlow"),
              "Base flow must be defined for linearised forms.");
     string file = m_session->GetFunctionFilename("BaseFlow", 0);
 
 
     //Periodic base flows
     if(m_session->DefinesParameter("N_slices"))
     {
         m_session->LoadParameter("N_slices",m_slices);
         if(m_slices>1)
         {
             DFT(file,pFields,m_slices);
         }
         else
         {
             ASSERTL0(false,"Number of slices must be a positive number greater than 1");
         }
     }
     //Steady base-flow
     else
     {
         m_slices=1;
 
         //BaseFlow from file
         if (m_session->GetFunctionType("BaseFlow", m_session->GetVariable(0))
             == LibUtilities::eFunctionTypeFile)
         {
             ImportFldBase(file,pFields,1);
 
         }
         //analytic base flow
         else
         {
             int nq = pFields[0]->GetNpoints();
             Array<OneD,NekDouble> x0(nq);
             Array<OneD,NekDouble> x1(nq);
             Array<OneD,NekDouble> x2(nq);
 
             // get the coordinates (assuming all fields have the same
             // discretisation)
             pFields[0]->GetCoords(x0,x1,x2);
 
             for(unsigned int i = 0 ; i < pFields.num_elements(); i++)
             {
                 LibUtilities::EquationSharedPtr ifunc
                     = m_session->GetFunction("BaseFlow", i);
 
                 ifunc->Evaluate(x0,x1,x2,m_baseflow[i]);
             }
         }
     }
 
     if(m_session->DefinesParameter("period"))
     {
         m_period=m_session->GetParameter("period");
     }
     else
     {
         m_period=(m_session->GetParameter("TimeStep")*m_slices)/(m_slices-1.);
     }
 
 }

void Nektar::LinearisedAdvection::v_SetBaseFlow ( const Array< OneD, Array< OneD, NekDouble > > & inarray )

protectedvirtual

Overrides the base flow used during linearised advection.

Reimplemented from Nektar::SolverUtils::Advection.

Definition at line 581 of file LinearisedAdvection.cpp.

References ASSERTL1, m_baseflow, m_session, npts, and Vmath::Vcopy().

 {
     if (m_session->GetSolverInfo("EqType") == "UnsteadyNavierStokes")
     {
         // The SFD method is only applied to the velocity variables in
         // incompressible
         ASSERTL1(inarray.num_elements() == (m_baseflow.num_elements() - 1),
                  "Number of base flow variables does not match what is "
                  "expected.");
     }
     else
     {
         ASSERTL1(inarray.num_elements() == (m_baseflow.num_elements()),
              "Number of base flow variables does not match what is expected.");
     }
 
     int npts = inarray[0].num_elements();
 
     for (int i = 0; i < inarray.num_elements(); ++i)
     {
         ASSERTL1(npts == m_baseflow[i].num_elements(),
              "Size of base flow array does not match expected.");
         Vmath::Vcopy(npts, inarray[i], 1, m_baseflow[i], 1);
     }
 }

Friends And Related Function Documentation

friend class MemoryManager< LinearisedAdvection >

friend

Definition at line 62 of file LinearisedAdvection.h.

Member Data Documentation

string Nektar::LinearisedAdvection::className

static

Initial value:

= SolverUtils::GetAdvectionFactory().RegisterCreatorFunction(
                "Linearised",
                LinearisedAdvection::create)

Name of class.

Definition at line 69 of file LinearisedAdvection.h.

Array<OneD, Array<OneD, NekDouble> > Nektar::LinearisedAdvection::m_baseflow

protected

Storage for base flow.

Definition at line 79 of file LinearisedAdvection.h.

Referenced by DFT(), GetFloquetBlockMatrix(), ImportFldBase(), UpdateBase(), v_Advect(), v_InitObject(), and v_SetBaseFlow().

SpatialDomains::BoundaryConditionsSharedPtr Nektar::LinearisedAdvection::m_boundaryConditions

private

Definition at line 174 of file LinearisedAdvection.h.

Referenced by v_InitObject().

MultiRegions::CoeffState Nektar::LinearisedAdvection::m_CoeffState

protected

Definition at line 99 of file LinearisedAdvection.h.

Referenced by v_Advect(), and v_InitObject().

int Nektar::LinearisedAdvection::m_expdim

protected

Definition at line 76 of file LinearisedAdvection.h.

Referenced by v_InitObject().

LibUtilities::NektarFFTSharedPtr Nektar::LinearisedAdvection::m_FFT

protected

Definition at line 88 of file LinearisedAdvection.h.

Referenced by DFT().

FloquetBlockMatrixMapShPtr Nektar::LinearisedAdvection::m_FloquetBlockMat

protected

Definition at line 107 of file LinearisedAdvection.h.

bool Nektar::LinearisedAdvection::m_HalfMode

protected

flag to determine if use half mode or not

Definition at line 95 of file LinearisedAdvection.h.

Referenced by ImportFldBase(), v_Advect(), and v_InitObject().

int Nektar::LinearisedAdvection::m_HomoDirec

private

number of homogenous directions

Definition at line 170 of file LinearisedAdvection.h.

Referenced by v_InitObject().

bool Nektar::LinearisedAdvection::m_homogen_dealiasing

protected

Definition at line 98 of file LinearisedAdvection.h.

Referenced by v_Advect(), and v_InitObject().

enum HomogeneousType Nektar::LinearisedAdvection::m_HomogeneousType

private

Definition at line 160 of file LinearisedAdvection.h.

Referenced by v_InitObject().

Array<OneD, Array<OneD, NekDouble> > Nektar::LinearisedAdvection::m_interp

protected

Definition at line 86 of file LinearisedAdvection.h.

Referenced by DFT(), ImportFldBase(), and v_Advect().

NekDouble Nektar::LinearisedAdvection::m_LhomX

private

physical length in X direction (if homogeneous)

Definition at line 162 of file LinearisedAdvection.h.

Referenced by v_InitObject().

NekDouble Nektar::LinearisedAdvection::m_LhomY

private

physical length in Y direction (if homogeneous)

Definition at line 163 of file LinearisedAdvection.h.

Referenced by v_InitObject().

NekDouble Nektar::LinearisedAdvection::m_LhomZ

private

physical length in Z direction (if homogeneous)

Definition at line 164 of file LinearisedAdvection.h.

Referenced by v_InitObject().

bool Nektar::LinearisedAdvection::m_MultipleModes

protected

flag to determine if use multiple mode or not

Definition at line 97 of file LinearisedAdvection.h.

Referenced by ImportFldBase(), and v_InitObject().

int Nektar::LinearisedAdvection::m_npointsX

private

number of points in X direction (if homogeneous)

Definition at line 166 of file LinearisedAdvection.h.

Referenced by v_InitObject().

int Nektar::LinearisedAdvection::m_npointsY

private

number of points in Y direction (if homogeneous)

Definition at line 167 of file LinearisedAdvection.h.

Referenced by v_InitObject().

int Nektar::LinearisedAdvection::m_npointsZ

private

number of points in Z direction (if homogeneous)

Definition at line 168 of file LinearisedAdvection.h.

Referenced by ImportFldBase(), and v_InitObject().

int Nektar::LinearisedAdvection::m_NumMode

private

Mode to use in case of single mode analysis.

Definition at line 172 of file LinearisedAdvection.h.

NekDouble Nektar::LinearisedAdvection::m_period

protected

Definition at line 84 of file LinearisedAdvection.h.

Referenced by UpdateBase(), v_Advect(), and v_InitObject().

MultiRegions::ProjectionType Nektar::LinearisedAdvection::m_projectionType

protected

Definition at line 74 of file LinearisedAdvection.h.

Referenced by v_InitObject().

LibUtilities::SessionReaderSharedPtr Nektar::LinearisedAdvection::m_session

protected

Definition at line 72 of file LinearisedAdvection.h.

Referenced by ImportFldBase(), v_Advect(), v_InitObject(), and v_SetBaseFlow().

bool Nektar::LinearisedAdvection::m_SingleMode

protected

flag to determine if use single mode or not

Definition at line 93 of file LinearisedAdvection.h.

Referenced by ImportFldBase(), v_Advect(), and v_InitObject().

int Nektar::LinearisedAdvection::m_slices

protected

Definition at line 82 of file LinearisedAdvection.h.

Referenced by DFT(), GetFloquetBlockMatrix(), UpdateBase(), v_Advect(), and v_InitObject().

int Nektar::LinearisedAdvection::m_spacedim

protected

Definition at line 75 of file LinearisedAdvection.h.

Referenced by v_InitObject().

Array<OneD,NekDouble> Nektar::LinearisedAdvection::m_tmpIN

protected

Definition at line 89 of file LinearisedAdvection.h.

Referenced by DFT().

Array<OneD,NekDouble> Nektar::LinearisedAdvection::m_tmpOUT

protected

Definition at line 90 of file LinearisedAdvection.h.

Referenced by DFT().

bool Nektar::LinearisedAdvection::m_useFFT

private

flag to determine if use or not the FFT for transformations

Definition at line 158 of file LinearisedAdvection.h.

Referenced by v_InitObject().

bool Nektar::LinearisedAdvection::m_useFFTW

protected

Definition at line 91 of file LinearisedAdvection.h.

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Private Types

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation