#include <Diffusion3DHomogeneous1D.h>

Inheritance diagram for Nektar::SolverUtils::Diffusion3DHomogeneous1D:

Static Public Member Functions
static DiffusionSharedPtr	create (std::string diffType)

Static Public Attributes
static std::string	type []

Protected Member Functions
	Diffusion3DHomogeneous1D (std::string diffType)
	Diffusion3DHomogeneous1D uses the 2D WeakDG approach to compute the diffusion term looping on the planes in the z direction and adding the flux in z direction at the end. More...

virtual void	v_InitObject (LibUtilities::SessionReaderSharedPtr pSession, Array< OneD, MultiRegions::ExpListSharedPtr > pFields)
	Initiliase Diffusion3DHomogeneous1D objects and store them before starting the time-stepping. More...

virtual void	v_Diffuse (const std::size_t nConvective, const Array< OneD, MultiRegions::ExpListSharedPtr > &fields, const Array< OneD, Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const Array< OneD, Array< OneD, NekDouble > > &pFwd=NullNekDoubleArrayofArray, const Array< OneD, Array< OneD, NekDouble > > &pBwd=NullNekDoubleArrayofArray)
	Calculate WeakDG Diffusion for the linear problems using an LDG interface flux and the the flux in the third direction. More...

Protected Member Functions inherited from Nektar::SolverUtils::Diffusion
virtual void	v_SetHomoDerivs (Array< OneD, Array< OneD, NekDouble > > &deriv)

virtual Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &	v_GetFluxTensor ()

Protected Attributes
LibUtilities::TranspositionSharedPtr	m_trans

std::string	m_diffType

SolverUtils::DiffusionSharedPtr	m_planeDiff

NekDouble	m_homoLen

std::size_t	m_numPoints

std::size_t	m_numPointsPlane

std::size_t	m_numPlanes

std::size_t	m_planeCounter

Array< OneD, unsigned int >	m_planes

Array< OneD, unsigned int >	m_planePos

Array< OneD, Array< OneD, NekDouble > >	m_homoDerivStore

Array< OneD, Array< OneD, Array< OneD, NekDouble > > >	m_homoDerivPlane

Array< OneD, Array< OneD, NekDouble > >	m_inarrayPlane

Array< OneD, Array< OneD, NekDouble > >	m_outarrayPlane

Array< OneD, MultiRegions::ExpListSharedPtr >	m_fieldsPlane

Array< OneD, Array< OneD, NekDouble > >	m_advVelPlane

Protected Attributes inherited from Nektar::SolverUtils::Diffusion
DiffusionFluxVecCB	m_fluxVector

DiffusionFluxVecCBNS	m_fluxVectorNS

DiffusionFluxPenaltyNS	m_fluxPenaltyNS

Additional Inherited Members
Public Member Functions inherited from Nektar::SolverUtils::Diffusion
virtual SOLVER_UTILS_EXPORT	~Diffusion ()

SOLVER_UTILS_EXPORT void	InitObject (LibUtilities::SessionReaderSharedPtr pSession, Array< OneD, MultiRegions::ExpListSharedPtr > pFields)

SOLVER_UTILS_EXPORT void	Diffuse (const std::size_t nConvectiveFields, const Array< OneD, MultiRegions::ExpListSharedPtr > &fields, const Array< OneD, Array< OneD, NekDouble > > &inarray, Array< OneD, Array< OneD, NekDouble > > &outarray, const Array< OneD, Array< OneD, NekDouble > > &pFwd=NullNekDoubleArrayofArray, const Array< OneD, Array< OneD, NekDouble > > &pBwd=NullNekDoubleArrayofArray)

SOLVER_UTILS_EXPORT void	FluxVec (Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &fluxvector)

template<typename FuncPointerT , typename ObjectPointerT >
void	SetFluxVector (FuncPointerT func, ObjectPointerT obj)

void	SetFluxVector (DiffusionFluxVecCB fluxVector)

template<typename FuncPointerT , typename ObjectPointerT >
void	SetFluxVectorNS (FuncPointerT func, ObjectPointerT obj)

void	SetFluxVectorNS (DiffusionFluxVecCBNS fluxVector)

template<typename FuncPointerT , typename ObjectPointerT >
void	SetFluxPenaltyNS (FuncPointerT func, ObjectPointerT obj)

void	SetFluxPenaltyNS (DiffusionFluxPenaltyNS flux)

void	SetHomoDerivs (Array< OneD, Array< OneD, NekDouble > > &deriv)

virtual Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &	GetFluxTensor ()

Detailed Description

Definition at line 45 of file Diffusion3DHomogeneous1D.h.

Constructor & Destructor Documentation

◆ Diffusion3DHomogeneous1D()

Nektar::SolverUtils::Diffusion3DHomogeneous1D::Diffusion3DHomogeneous1D ( std::string diffType )

protected

Diffusion3DHomogeneous1D uses the 2D WeakDG approach to compute the diffusion term looping on the planes in the z direction and adding the flux in z direction at the end.

Definition at line 79 of file Diffusion3DHomogeneous1D.cpp.

References Nektar::LibUtilities::NekFactory< tKey, tBase, tParam >::CreateInstance(), and Nektar::SolverUtils::GetDiffusionFactory().

Referenced by create().

         {
             // Strip trailing string "3DHomogeneous1D" to determine 2D diffusion
             // type, and create a diffusion object for the plane.
             m_diffType = diffType.substr(0, diffType.length()-15);
             m_planeDiff = GetDiffusionFactory().CreateInstance(m_diffType, m_diffType);
         }

Member Function Documentation

◆ create()

static DiffusionSharedPtr Nektar::SolverUtils::Diffusion3DHomogeneous1D::create ( std::string diffType )

inlinestatic

Definition at line 48 of file Diffusion3DHomogeneous1D.h.

References Diffusion3DHomogeneous1D().

             {
                 return DiffusionSharedPtr(
                     new Diffusion3DHomogeneous1D(diffType));
             }

◆ v_Diffuse()

void Nektar::SolverUtils::Diffusion3DHomogeneous1D::v_Diffuse	(	const std::size_t	nConvective,
		const Array< OneD, MultiRegions::ExpListSharedPtr > &	fields,
		const Array< OneD, Array< OneD, NekDouble > > &	inarray,
		Array< OneD, Array< OneD, NekDouble > > &	outarray,
		const Array< OneD, Array< OneD, NekDouble > > &	pFwd = `NullNekDoubleArrayofArray`,
		const Array< OneD, Array< OneD, NekDouble > > &	pBwd = `NullNekDoubleArrayofArray`
	)

protectedvirtual

Calculate WeakDG Diffusion for the linear problems using an LDG interface flux and the the flux in the third direction.

Implements Nektar::SolverUtils::Diffusion.

Definition at line 190 of file Diffusion3DHomogeneous1D.cpp.

References Vmath::Smul(), Vmath::Vadd(), Vmath::Vcopy(), and Vmath::Vsub().

         {
             boost::ignore_unused(pFwd, pBwd);
 
             Array<OneD, NekDouble> tmp(m_numPoints), tmp2;
             Array<OneD, Array<OneD, NekDouble> > viscHComp;
             const int nPointsTot = fields[0]->GetNpoints();
             NekDouble beta;
 
 
             if (m_fluxVectorNS)
             {
                 viscHComp = Array<OneD, Array<OneD, NekDouble> >(nConvectiveFields);
                 for (int i = 0; i < nConvectiveFields - 1; ++i)
                 {
                     fields[0]->PhysDeriv(2, inarray[i], m_homoDerivStore[i]);
                     viscHComp[i] = Array<OneD, NekDouble>(m_numPoints);
                 }
             }
 
 
             for (int i = 0; i < m_numPlanes; ++i)
             {
                 // Set up memory references for fields, inarray and outarray for
                 // this plane.
                 for (int j = 0; j < inarray.num_elements(); ++j)
                 {
                     m_inarrayPlane [j] = Array<OneD, NekDouble>(
                         m_numPointsPlane, tmp2 = inarray [j] + m_planePos[i]);
                 }
 
                 for (int j = 0; j < nConvectiveFields; ++j)
                 {
                     m_fieldsPlane  [j] = fields[j]->GetPlane(i);
                     m_outarrayPlane[j] = Array<OneD, NekDouble>(
                         m_numPointsPlane, tmp2 = outarray[j] + m_planePos[i]);
                 }
 
 
                 if (m_fluxVectorNS)
                 {
                     m_planeDiff->SetHomoDerivs(m_homoDerivPlane[i]);
                 }
 
 
                 if (m_diffType == "LDGNS")
                 {
                     // Store plane Fwd/Bwd traces
                     std::size_t nTracePts = m_fieldsPlane[0]->GetTrace()
                         ->GetTotPoints();
                     std::size_t nScalar = m_inarrayPlane.num_elements();
                     Array<OneD, Array<OneD, NekDouble> > Fwd(nScalar);
                     Array<OneD, Array<OneD, NekDouble> > Bwd(nScalar);
                     {
                         for(std::size_t k = 0; k < nScalar; ++k)
                         {
                             Fwd[k] = Array<OneD, NekDouble>(nTracePts, 0.0);
                             Bwd[k] = Array<OneD, NekDouble>(nTracePts, 0.0);
                             m_fieldsPlane[k]->GetFwdBwdTracePhys(
                                 m_inarrayPlane[k], Fwd[k], Bwd[k]);
                         }
                     }
 
                     m_planeDiff->Diffuse(nConvectiveFields,
                                          m_fieldsPlane,
                                          m_inarrayPlane,
                                          m_outarrayPlane,
                                          Fwd,
                                          Bwd);
                 }
                 else
                 {
                     m_planeDiff->Diffuse(nConvectiveFields,
                                          m_fieldsPlane,
                                          m_inarrayPlane,
                                          m_outarrayPlane);
                 }
 
                 if (m_fluxVectorNS)
                 {
                     Array<OneD, Array<OneD, Array<OneD, NekDouble> > >
                         &viscTensor = m_planeDiff->GetFluxTensor();
 
                     // Extract H (viscTensor[2])
                     for (int j = 0; j < nConvectiveFields - 1; ++j)
                     {
                         Vmath::Vcopy(m_numPointsPlane,
                                      viscTensor[2][j+1], 1,
                                      tmp2 = viscHComp[j] + m_planePos[i], 1);
                     }
                 }
             }
 
 
 
             if (m_fluxVectorNS)
             {
                 for (int j = 0; j < nConvectiveFields - 1; ++j)
                 {
                     fields[j+1]->PhysDeriv(2, viscHComp[j], tmp);
                     Vmath::Vadd(nPointsTot, outarray[j+1], 1, tmp, 1,
                         outarray[j+1], 1);
                 }
             }
             else
             {
                 for (int j = 0; j < nConvectiveFields; ++j)
                 {
                     fields[j]->HomogeneousFwdTrans(inarray[j], tmp);
 
                     for (int i = 0; i < m_numPlanes; ++i)
                     {
                         beta  = 2*M_PI*m_trans->GetK(i)/m_homoLen;
                         beta *= beta;
 
                         Vmath::Smul(m_numPointsPlane,
                                     beta,
                                     &tmp[0] + i*m_numPointsPlane, 1,
                                     &tmp[0] + i*m_numPointsPlane, 1);
                     }
 
                     fields[0]->HomogeneousBwdTrans(tmp, tmp);
 
                     Vmath::Vsub(nPointsTot, outarray[j], 1, tmp, 1,
                                 outarray[j], 1);
                 }
             }
         }

◆ v_InitObject()

void Nektar::SolverUtils::Diffusion3DHomogeneous1D::v_InitObject	(	LibUtilities::SessionReaderSharedPtr	pSession,
		Array< OneD, MultiRegions::ExpListSharedPtr >	pFields
	)

protectedvirtual

Initiliase Diffusion3DHomogeneous1D objects and store them before starting the time-stepping.

Parameters

pSession	Pointer to session reader.
pFields	Pointer to fields.

Reimplemented from Nektar::SolverUtils::Diffusion.

Definition at line 94 of file Diffusion3DHomogeneous1D.cpp.

         {
             int nConvectiveFields = pFields.num_elements();
 
             Array<OneD, MultiRegions::ExpListSharedPtr> pFields_plane0(
                 nConvectiveFields);
 
             // Initialise the plane advection object.
             for (int i = 0; i < nConvectiveFields; ++i)
             {
                 pFields_plane0[i] = pFields[i]->GetPlane(0);
             }
             m_planeDiff->InitObject(pSession, pFields_plane0);
 
             m_numPoints      = pFields[0]->GetTotPoints();
             m_planes         = pFields[0]->GetZIDs();
             m_numPlanes      = m_planes.num_elements();
             m_numPointsPlane = m_numPoints/m_numPlanes;
             m_homoLen        = pFields[0]->GetHomoLen();
             m_trans          = pFields[0]->GetTransposition();
             m_planeCounter = 0;
 
             if (m_diffType == "LDG")
             {
                 // Set viscous flux for LDG
                 m_planeDiff->SetFluxVector(m_fluxVector);
             }
             else if (m_diffType == "LDGNS")
             {
                 // Set viscous flux for LDGNS
                 m_planeDiff->SetFluxVectorNS(m_fluxVectorNS);
                 // Set penalty flux
                 m_planeDiff->SetFluxPenaltyNS(m_fluxPenaltyNS);
             }
             else if (m_diffType == "LFRDGNS" ||
                      m_diffType == "LFRHUNS" ||
                      m_diffType == "LFRSDNS" )
             {
                 // Set viscous flux for FR cases
                 m_planeDiff->SetFluxVectorNS(m_fluxVectorNS);
             }
 
             m_fieldsPlane   = Array<OneD, MultiRegions::ExpListSharedPtr>
                                                             (nConvectiveFields);
 
             if (m_fluxVectorNS)
             {
                 m_inarrayPlane  = Array<OneD, Array<OneD, NekDouble> >
                                                         (nConvectiveFields - 1);
             }
             else
             {
                 m_inarrayPlane  = Array<OneD, Array<OneD, NekDouble> >
                                                             (nConvectiveFields);
             }
             m_outarrayPlane = Array<OneD, Array<OneD, NekDouble> >
                                                             (nConvectiveFields);
             m_planePos      = Array<OneD, unsigned int>     (m_numPlanes);
 
             for (int i = 0; i < m_numPlanes; ++i)
             {
                 m_planePos[i] = i * m_numPointsPlane;
             }
 
             if (m_fluxVectorNS)
             {
                 m_homoDerivStore = Array<OneD, Array<OneD, NekDouble> >(
                     nConvectiveFields);
                 m_homoDerivPlane = Array<OneD, Array<OneD, Array<OneD, NekDouble> > >(
                     m_numPlanes);
 
                 for (int i = 0; i < nConvectiveFields; ++i)
                 {
                     m_homoDerivStore[i] = Array<OneD, NekDouble>(m_numPoints);
                 }
 
                 for (int i = 0; i < m_numPlanes; ++i)
                 {
                     m_homoDerivPlane[i] = Array<OneD, Array<OneD, NekDouble> >(nConvectiveFields);
 
                     for (int j = 0; j < nConvectiveFields; ++j)
                     {
                         m_homoDerivPlane[i][j] = Array<OneD, NekDouble>(
                             m_numPointsPlane,
                             m_homoDerivStore[j] + m_planePos[i]);
                     }
                 }
             }
         }

Member Data Documentation

◆ m_advVelPlane

Array<OneD, Array<OneD, NekDouble> > Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_advVelPlane

protected

Definition at line 73 of file Diffusion3DHomogeneous1D.h.

◆ m_diffType

std::string Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_diffType

protected

Definition at line 59 of file Diffusion3DHomogeneous1D.h.

◆ m_fieldsPlane

Array<OneD, MultiRegions::ExpListSharedPtr> Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_fieldsPlane

protected

Definition at line 72 of file Diffusion3DHomogeneous1D.h.

◆ m_homoDerivPlane

Array<OneD, Array<OneD, Array<OneD, NekDouble> > > Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_homoDerivPlane

protected

Definition at line 69 of file Diffusion3DHomogeneous1D.h.

◆ m_homoDerivStore

Array<OneD, Array<OneD, NekDouble> > Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_homoDerivStore

protected

Definition at line 68 of file Diffusion3DHomogeneous1D.h.

◆ m_homoLen

NekDouble Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_homoLen

protected

Definition at line 61 of file Diffusion3DHomogeneous1D.h.

◆ m_inarrayPlane

Array<OneD, Array<OneD, NekDouble> > Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_inarrayPlane

protected

Definition at line 70 of file Diffusion3DHomogeneous1D.h.

◆ m_numPlanes

std::size_t Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_numPlanes

protected

Definition at line 64 of file Diffusion3DHomogeneous1D.h.

◆ m_numPoints

std::size_t Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_numPoints

protected

Definition at line 62 of file Diffusion3DHomogeneous1D.h.

◆ m_numPointsPlane

std::size_t Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_numPointsPlane

protected

Definition at line 63 of file Diffusion3DHomogeneous1D.h.

◆ m_outarrayPlane

Array<OneD, Array<OneD, NekDouble> > Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_outarrayPlane

protected

Definition at line 71 of file Diffusion3DHomogeneous1D.h.

◆ m_planeCounter

std::size_t Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_planeCounter

protected

Definition at line 65 of file Diffusion3DHomogeneous1D.h.

◆ m_planeDiff

SolverUtils::DiffusionSharedPtr Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_planeDiff

protected

Definition at line 60 of file Diffusion3DHomogeneous1D.h.

◆ m_planePos

Array<OneD, unsigned int> Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_planePos

protected

Definition at line 67 of file Diffusion3DHomogeneous1D.h.

◆ m_planes

Array<OneD, unsigned int> Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_planes

protected

Definition at line 66 of file Diffusion3DHomogeneous1D.h.

◆ m_trans

LibUtilities::TranspositionSharedPtr Nektar::SolverUtils::Diffusion3DHomogeneous1D::m_trans

protected

Definition at line 58 of file Diffusion3DHomogeneous1D.h.

◆ type

std::string Nektar::SolverUtils::Diffusion3DHomogeneous1D::type

static

Initial value:

= {
            GetDiffusionFactory().RegisterCreatorFunction(
                "LDG3DHomogeneous1D",       Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRDG3DHomogeneous1D",     Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRSD3DHomogeneous1D",     Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRHU3DHomogeneous1D",     Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRcmin3DHomogeneous1D",   Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRcinf3DHomogeneous1D",   Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LDGNS3DHomogeneous1D",     Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRDGNS3DHomogeneous1D",   Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRSDNS3DHomogeneous1D",   Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRHUNS3DHomogeneous1D",   Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRcminNS3DHomogeneous1D", Diffusion3DHomogeneous1D::create),
            GetDiffusionFactory().RegisterCreatorFunction(
                "LFRcinfNS3DHomogeneous1D", Diffusion3DHomogeneous1D::create)
        }

Definition at line 53 of file Diffusion3DHomogeneous1D.h.

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Diffusion3DHomogeneous1D()

Member Function Documentation

◆ create()

◆ v_Diffuse()

◆ v_InitObject()

Member Data Documentation

◆ m_advVelPlane

◆ m_diffType

◆ m_fieldsPlane

◆ m_homoDerivPlane

◆ m_homoDerivStore

◆ m_homoLen

◆ m_inarrayPlane

◆ m_numPlanes

◆ m_numPoints

◆ m_numPointsPlane

◆ m_outarrayPlane

◆ m_planeCounter

◆ m_planeDiff

◆ m_planePos

◆ m_planes

◆ m_trans

◆ type