Advection for the adjoint form of the linearised Navier-Stokes equations. More...

#include <AdjointAdvection.h>

Inheritance diagram for Nektar::AdjointAdvection:

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

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

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

Static Public Attributes inherited from Nektar::LinearisedAdvection
static std::string	className
	Name of class. More...

Protected Member Functions
	AdjointAdvection ()

virtual	~AdjointAdvection ()

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, const Array< OneD, Array< OneD, NekDouble > > &pFwd=NullNekDoubleArrayofArray, const Array< OneD, Array< OneD, NekDouble > > &pBwd=NullNekDoubleArrayofArray)
	Advects a vector field. More...

Protected Member Functions inherited from Nektar::LinearisedAdvection
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_SetBaseFlow (const Array< OneD, Array< OneD, NekDouble > > &inarray, const Array< OneD, MultiRegions::ExpListSharedPtr > &fields)
	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	UpdateGradBase (const int var, const MultiRegions::ExpListSharedPtr &field)

void	DFT (const std::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...

Friends
class	MemoryManager< AdjointAdvection >

Additional Inherited Members
Public Member Functions inherited from Nektar::SolverUtils::Advection
virtual SOLVER_UTILS_EXPORT	~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, const Array< OneD, Array< OneD, NekDouble > > &pFwd=NullNekDoubleArrayofArray, const Array< OneD, Array< OneD, NekDouble > > &pBwd=NullNekDoubleArrayofArray)
	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, const Array< OneD, MultiRegions::ExpListSharedPtr > &fields)
	Set the base flow used for linearised advection objects. More...

Protected Attributes inherited from Nektar::LinearisedAdvection
LibUtilities::SessionReaderSharedPtr	m_session

int	m_spacedim

int	m_expdim

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

Array< OneD, Array< OneD, NekDouble > >	m_gradBase

int	m_slices
	number of slices More...

NekDouble	m_period
	period length More...

Array< OneD, Array< OneD, NekDouble > >	m_interp
	interpolation vector More...

LibUtilities::NektarFFTSharedPtr	m_FFT
	auxiliary variables More...

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...

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...

Detailed Description

Advection for the adjoint form of the linearised Navier-Stokes equations.

Definition at line 45 of file AdjointAdvection.h.

Constructor & Destructor Documentation

◆ AdjointAdvection()

Nektar::AdjointAdvection::AdjointAdvection ( )

protected

Definition at line 49 of file AdjointAdvection.cpp.

                                   :
     LinearisedAdvection()
 {
 }

◆ ~AdjointAdvection()

Nektar::AdjointAdvection::~AdjointAdvection ( )

protectedvirtual

Definition at line 54 of file AdjointAdvection.cpp.

55 {

56 }

Member Function Documentation

◆ create()

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

inlinestatic

Creates an instance of this class.

Definition at line 51 of file AdjointAdvection.h.

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

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

◆ v_Advect()

void Nektar::AdjointAdvection::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,
		const Array< OneD, Array< OneD, NekDouble > > &	pFwd = `NullNekDoubleArrayofArray`,
		const Array< OneD, Array< OneD, NekDouble > > &	pBwd = `NullNekDoubleArrayofArray`
	)

protectedvirtual

Advects a vector field.

Reimplemented from Nektar::LinearisedAdvection.

Definition at line 58 of file AdjointAdvection.cpp.

 {
     ASSERTL1(nConvectiveFields == inarray.num_elements(),
              "Number of convective fields and Inarray are not compatible");
 
     int nPointsTot  = fields[0]->GetNpoints();
     int ndim        = advVel.num_elements();
     int nBaseDerivs = (m_halfMode || m_singleMode) ? 2 : m_spacedim;
     int nDerivs     = (m_halfMode) ? 2 : m_spacedim;
 
     Array<OneD, Array<OneD, NekDouble> > velocity(ndim);
     for(int i = 0; i < ndim; ++i)
     {
         if(fields[i]->GetWaveSpace() && !m_singleMode && !m_halfMode)
         {
             velocity[i] = Array<OneD, NekDouble>(nPointsTot,0.0);
             fields[i]->HomogeneousBwdTrans(advVel[i],velocity[i]);
         }
         else
         {
             velocity[i] = advVel[i];
         }
     }
 
     Array<OneD, Array<OneD, NekDouble> > grad (nDerivs);
     for( int i = 0; i < nDerivs; ++i)
     {
         grad[i] = Array<OneD, NekDouble> (nPointsTot);
     }
 
     // Evaluation of the base flow for periodic cases
     if (m_slices > 1)
     {
         for (int i = 0; i < ndim; ++i)
         {
             UpdateBase(m_slices, m_interp[i], m_baseflow[i],
                        m_period-time, m_period);
             UpdateGradBase(i, fields[i]);
         }
     }
 
     //Evaluate the linearised advection term
     for( int i = 0; i < ndim; ++i)
     {
         // Calculate gradient
         switch(nDerivs)
         {
             case 1:
             {
                 fields[i]->PhysDeriv(inarray[i], grad[0]);
             }
             break;
             case 2:
             {
                 fields[i]->PhysDeriv(inarray[i], grad[0], grad[1]);
             }
             break;
             case 3:
             {
                 fields[i]->PhysDeriv(inarray[i], grad[0], grad[1], grad[2]);
                 if(m_multipleModes)
                 {
                     // transform gradients into physical Fourier space
                     fields[i]->HomogeneousBwdTrans(grad[0], grad[0]);
                     fields[i]->HomogeneousBwdTrans(grad[1], grad[1]);
                     fields[i]->HomogeneousBwdTrans(grad[2], grad[2]);
                 }
             }
             break;
         }
 
         // Calculate -U_j du'_i/dx_j
         Vmath::Vmul(nPointsTot,grad[0], 1, m_baseflow[0], 1, outarray[i], 1);
         for( int j = 1; j < nDerivs; ++j)
         {
             Vmath::Vvtvp(nPointsTot,grad[j], 1,
                                     m_baseflow[j], 1,
                                     outarray[i], 1,
                                     outarray[i], 1);
         }
         Vmath::Neg(nPointsTot,outarray[i],1);
 
         // Add u'_j U_j/ dx_i
         int lim = (m_halfMode) ? 2 : ndim;
         if ( (m_halfMode || m_singleMode) && i==2)
         {
             lim = 0;
         }
         for( int j = 0; j < lim; ++j)
         {
             Vmath::Vvtvp(nPointsTot,m_gradBase[j*nBaseDerivs + i], 1,
                                     velocity[j], 1,
                                     outarray[i], 1,
                                     outarray[i], 1);
         }
 
         if(m_multipleModes)
         {
             fields[i]->HomogeneousFwdTrans(outarray[i],outarray[i]);
         }
         Vmath::Neg(nPointsTot,outarray[i],1);
     }
 }

Friends And Related Function Documentation

◆ MemoryManager< AdjointAdvection >

friend class MemoryManager< AdjointAdvection >

friend

Definition at line 48 of file AdjointAdvection.h.

Member Data Documentation

◆ className

string Nektar::AdjointAdvection::className

static

Initial value:

= SolverUtils
        ::GetAdvectionFactory().RegisterCreatorFunction("Adjoint",
                                                    AdjointAdvection::create)

Name of class.

Definition at line 57 of file AdjointAdvection.h.

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Friends

Additional Inherited Members