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Nektar::SolverUtils::Advection3DHomogeneous1D Class Reference

#include <Advection3DHomogeneous1D.h>

Inheritance diagram for Nektar::SolverUtils::Advection3DHomogeneous1D:
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Collaboration diagram for Nektar::SolverUtils::Advection3DHomogeneous1D:
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Static Public Member Functions

static AdvectionSharedPtr create (std::string advType)
 

Static Public Attributes

static std::string type []
 

Protected Member Functions

 Advection3DHomogeneous1D (std::string advType)
 AdvectionFR uses the Flux Reconstruction (FR) approach to compute the advection term. The implementation is only for segments, quadrilaterals and hexahedra at the moment. More...
 
virtual void v_InitObject (LibUtilities::SessionReaderSharedPtr pSession, Array< OneD, MultiRegions::ExpListSharedPtr > pFields)
 Initiliase Advection3DHomogeneous1D objects and store them before starting the time-stepping. More...
 
virtual void v_Advect (const int nConvField, 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)
 Compute the advection operator for a given input inarray and put the result in outarray. More...
 
- Protected Member Functions inherited from Nektar::SolverUtils::Advection
virtual SOLVER_UTILS_EXPORT void v_SetBaseFlow (const Array< OneD, Array< OneD, NekDouble > > &inarray)
 Overrides the base flow used during linearised advection. More...
 

Protected Attributes

std::string m_advType
 
SolverUtils::AdvectionSharedPtr m_planeAdv
 
int m_numPoints
 
int m_numPointsPlane
 
int m_numPlanes
 
int m_planeCounter
 
Array< OneD, unsigned int > m_planes
 
Array< OneD, unsigned int > m_planePos
 
Array< OneD, Array< OneD,
Array< OneD, NekDouble > > > 
m_fluxVecStore
 
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
 
Array< OneD, Array< OneD,
Array< OneD, Array< OneD,
NekDouble > > > > 
m_fluxVecPlane
 
- 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 Member Functions

void ModifiedFluxVector (const Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &flux)
 

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 48 of file Advection3DHomogeneous1D.h.

Constructor & Destructor Documentation

Nektar::SolverUtils::Advection3DHomogeneous1D::Advection3DHomogeneous1D ( std::string  advType)
protected

AdvectionFR uses the Flux Reconstruction (FR) approach to compute the advection term. The implementation is only for segments, quadrilaterals and hexahedra at the moment.

Todo:
Extension to triangles, tetrahedra and other shapes. (Long term objective)

Definition at line 70 of file Advection3DHomogeneous1D.cpp.

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

Referenced by create().

71  : m_advType(advType)
72  {
73  // Strip trailing string "3DHomogeneous1D" to determine 2D advection
74  // type, and create an advection object for the plane.
75  string advName = advType.substr(0, advType.length()-15);
76  m_planeAdv = GetAdvectionFactory().CreateInstance(advName, advName);
77  }
tBaseSharedPtr CreateInstance(tKey idKey BOOST_PP_COMMA_IF(MAX_PARAM) BOOST_PP_ENUM_BINARY_PARAMS(MAX_PARAM, tParam, x))
Create an instance of the class referred to by idKey.
Definition: NekFactory.hpp:162
AdvectionFactory & GetAdvectionFactory()
Gets the factory for initialising advection objects.
Definition: Advection.cpp:46

Member Function Documentation

static AdvectionSharedPtr Nektar::SolverUtils::Advection3DHomogeneous1D::create ( std::string  advType)
inlinestatic

Definition at line 51 of file Advection3DHomogeneous1D.h.

References Advection3DHomogeneous1D().

52  {
53  return AdvectionSharedPtr(
54  new Advection3DHomogeneous1D(advType));
55  }
boost::shared_ptr< Advection > AdvectionSharedPtr
A shared pointer to an Advection object.
Definition: Advection.h:158
Advection3DHomogeneous1D(std::string advType)
AdvectionFR uses the Flux Reconstruction (FR) approach to compute the advection term. The implementation is only for segments, quadrilaterals and hexahedra at the moment.
void Nektar::SolverUtils::Advection3DHomogeneous1D::ModifiedFluxVector ( const Array< OneD, Array< OneD, NekDouble > > &  physfield,
Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &  flux 
)
private

Definition at line 243 of file Advection3DHomogeneous1D.cpp.

References m_fluxVecPlane, m_numPlanes, and m_planeCounter.

Referenced by v_InitObject().

246  {
247  // Return section of flux vector for this plane.
248  outarray = m_fluxVecPlane[m_planeCounter];
249 
250  // Increment the plane counter.
252  }
Array< OneD, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > > m_fluxVecPlane
void Nektar::SolverUtils::Advection3DHomogeneous1D::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

Compute the advection operator for a given input inarray and put the result in outarray.

Parameters
nConvectiveFieldsNumber of fields to advect.
fieldsPointer to fields.
advVelAdvection velocities.
inarrayInput which will be advected.
outarrayComputed advection.

Implements Nektar::SolverUtils::Advection.

Definition at line 189 of file Advection3DHomogeneous1D.cpp.

References m_advVelPlane, m_fieldsPlane, m_fluxVecStore, Nektar::SolverUtils::Advection::m_fluxVector, m_inarrayPlane, m_numPlanes, m_numPoints, m_numPointsPlane, m_outarrayPlane, m_planeAdv, m_planePos, and Vmath::Vadd().

196  {
198  int nVel = advVel.num_elements();
199 
200  // Call solver's flux vector function to compute the flux vector on
201  // the entire domain.
202  m_fluxVector(inarray, m_fluxVecStore);
203 
204  // Loop over each plane.
205  for (int i = 0; i < m_numPlanes; ++i)
206  {
207  // Set up memory references for fields, inarray and outarray for
208  // this plane.
209  for (int j = 0; j < nConvectiveFields; ++j)
210  {
211  m_fieldsPlane [j] = fields[j]->GetPlane(i);
213  m_numPointsPlane, tmp2 = inarray [j] + m_planePos[i]);
215  m_numPointsPlane, tmp2 = outarray[j] + m_planePos[i]);
216  }
217 
218  for (int j = 0; j < nVel; ++j)
219  {
220  if (advVel[j].num_elements() != 0)
221  {
223  m_numPointsPlane, tmp2 = advVel[j] + m_planePos[i]);
224  }
225  }
226 
227  // Compute advection term for this plane.
228  m_planeAdv->Advect(nConvectiveFields, m_fieldsPlane,
230  m_outarrayPlane, time);
231  }
232 
233  // Calculate Fourier derivative and add to final result.
234  for (int i = 0; i < nConvectiveFields; ++i)
235  {
236  fields[0]->PhysDeriv(2, m_fluxVecStore[i][2], tmp);
237 
238  Vmath::Vadd(m_numPoints, outarray[i], 1, tmp, 1,
239  outarray[i], 1);
240  }
241  }
Array< OneD, Array< OneD, NekDouble > > m_advVelPlane
Array< OneD, Array< OneD, Array< OneD, NekDouble > > > m_fluxVecStore
Array< OneD, Array< OneD, NekDouble > > m_outarrayPlane
Array< OneD, Array< OneD, NekDouble > > m_inarrayPlane
AdvectionFluxVecCB m_fluxVector
Callback function to the flux vector (set when advection is in conservative form).
Definition: Advection.h:132
Array< OneD, MultiRegions::ExpListSharedPtr > m_fieldsPlane
void Vadd(int n, const T *x, const int incx, const T *y, const int incy, T *z, const int incz)
Add vector z = x+y.
Definition: Vmath.cpp:285
void Nektar::SolverUtils::Advection3DHomogeneous1D::v_InitObject ( LibUtilities::SessionReaderSharedPtr  pSession,
Array< OneD, MultiRegions::ExpListSharedPtr pFields 
)
protectedvirtual

Initiliase Advection3DHomogeneous1D objects and store them before starting the time-stepping.

Parameters
pSessionPointer to session reader.
pFieldsPointer to fields.

Reimplemented from Nektar::SolverUtils::Advection.

Definition at line 86 of file Advection3DHomogeneous1D.cpp.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), Nektar::SolverUtils::HomoRSScalar::Exec(), Nektar::SolverUtils::HomoRSVector::Exec(), Nektar::iterator, m_advVelPlane, m_fieldsPlane, m_fluxVecPlane, m_fluxVecStore, m_inarrayPlane, m_numPlanes, m_numPoints, m_numPointsPlane, m_outarrayPlane, m_planeAdv, m_planeCounter, m_planePos, m_planes, Nektar::SolverUtils::Advection::m_riemann, and ModifiedFluxVector().

89  {
90  int nConvectiveFields = pFields.num_elements();
91 
93  nConvectiveFields);
94 
95  // Initialise the plane advection object.
96  for (int i = 0; i < nConvectiveFields; ++i)
97  {
98  pFields_plane0[i] = pFields[i]->GetPlane(0);
99  }
100  m_planeAdv->InitObject(pSession, pFields_plane0);
101 
102  m_numPoints = pFields[0]->GetTotPoints();
103  m_planes = pFields[0]->GetZIDs();
104  m_numPlanes = m_planes.num_elements();
106 
107  // Set Riemann solver and flux vector callback for this plane.
108  m_planeAdv->SetRiemannSolver(m_riemann);
109  m_planeAdv->SetFluxVector (
111  m_planeCounter = 0;
112 
113  // Override Riemann solver scalar and vector callbacks.
116  map<string, RSScalarFuncType> scalars = m_riemann->GetScalars();
117  map<string, RSVecFuncType> vectors = m_riemann->GetVectors();
118 
119  for (it1 = scalars.begin(); it1 != scalars.end(); ++it1)
120  {
121  boost::shared_ptr<HomoRSScalar> tmp = MemoryManager<HomoRSScalar>
122  ::AllocateSharedPtr(it1->second, m_numPlanes);
123  m_riemann->SetScalar(it1->first, &HomoRSScalar::Exec, tmp);
124  }
125 
126  for (it2 = vectors.begin(); it2 != vectors.end(); ++it2)
127  {
128  boost::shared_ptr<HomoRSVector> tmp = MemoryManager<HomoRSVector>
129  ::AllocateSharedPtr(it2->second, m_numPlanes, it2->first);
130  m_riemann->SetVector(it2->first, &HomoRSVector::Exec, tmp);
131  }
132 
134  nConvectiveFields);
135 
136  // Set up storage for flux vector.
137  for (int i = 0; i < nConvectiveFields; ++i)
138  {
140  for (int j = 0; j < 3; ++j)
141  {
143  }
144  }
145 
146  m_fluxVecPlane = Array<OneD, Array<OneD,
149  (nConvectiveFields);
151  (nConvectiveFields);
153  (nConvectiveFields);
156 
157  // Set up memory reference which links fluxVecPlane to fluxVecStore.
158  for (int i = 0; i < m_numPlanes; ++i)
159  {
160  m_planePos[i] = i * m_numPointsPlane;
161  m_fluxVecPlane[i] =
163  nConvectiveFields);
164 
165  for (int j = 0; j < nConvectiveFields; ++j)
166  {
167  m_fluxVecPlane[i][j] =
169  for (int k = 0; k < 3; ++k)
170  {
173  m_fluxVecStore[j][k] + m_planePos[i]);
174  }
175  }
176  }
177  }
Array< OneD, Array< OneD, NekDouble > > m_advVelPlane
static boost::shared_ptr< DataType > AllocateSharedPtr()
Allocate a shared pointer from the memory pool.
Array< OneD, Array< OneD, Array< OneD, NekDouble > > > m_fluxVecStore
const Array< OneD, const NekDouble > & Exec()
Array< OneD, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > > m_fluxVecPlane
RiemannSolverSharedPtr m_riemann
Riemann solver for DG-type schemes.
Definition: Advection.h:134
void ModifiedFluxVector(const Array< OneD, Array< OneD, NekDouble > > &physfield, Array< OneD, Array< OneD, Array< OneD, NekDouble > > > &flux)
const Array< OneD, const Array< OneD, NekDouble > > & Exec()
StandardMatrixTag boost::call_traits< LhsDataType >::const_reference rhs typedef NekMatrix< LhsDataType, StandardMatrixTag >::iterator iterator
Array< OneD, Array< OneD, NekDouble > > m_outarrayPlane
Array< OneD, Array< OneD, NekDouble > > m_inarrayPlane
Array< OneD, MultiRegions::ExpListSharedPtr > m_fieldsPlane

Member Data Documentation

std::string Nektar::SolverUtils::Advection3DHomogeneous1D::m_advType
protected

Definition at line 61 of file Advection3DHomogeneous1D.h.

Array<OneD, Array<OneD, NekDouble> > Nektar::SolverUtils::Advection3DHomogeneous1D::m_advVelPlane
protected

Definition at line 73 of file Advection3DHomogeneous1D.h.

Referenced by v_Advect(), and v_InitObject().

Array<OneD, MultiRegions::ExpListSharedPtr> Nektar::SolverUtils::Advection3DHomogeneous1D::m_fieldsPlane
protected

Definition at line 72 of file Advection3DHomogeneous1D.h.

Referenced by v_Advect(), and v_InitObject().

Array<OneD, Array<OneD, Array<OneD, Array<OneD, NekDouble> > > > Nektar::SolverUtils::Advection3DHomogeneous1D::m_fluxVecPlane
protected

Definition at line 75 of file Advection3DHomogeneous1D.h.

Referenced by ModifiedFluxVector(), and v_InitObject().

Array<OneD, Array<OneD, Array<OneD, NekDouble> > > Nektar::SolverUtils::Advection3DHomogeneous1D::m_fluxVecStore
protected

Definition at line 69 of file Advection3DHomogeneous1D.h.

Referenced by v_Advect(), and v_InitObject().

Array<OneD, Array<OneD, NekDouble> > Nektar::SolverUtils::Advection3DHomogeneous1D::m_inarrayPlane
protected

Definition at line 70 of file Advection3DHomogeneous1D.h.

Referenced by v_Advect(), and v_InitObject().

int Nektar::SolverUtils::Advection3DHomogeneous1D::m_numPlanes
protected

Definition at line 65 of file Advection3DHomogeneous1D.h.

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

int Nektar::SolverUtils::Advection3DHomogeneous1D::m_numPoints
protected

Definition at line 63 of file Advection3DHomogeneous1D.h.

Referenced by v_Advect(), and v_InitObject().

int Nektar::SolverUtils::Advection3DHomogeneous1D::m_numPointsPlane
protected

Definition at line 64 of file Advection3DHomogeneous1D.h.

Referenced by v_Advect(), and v_InitObject().

Array<OneD, Array<OneD, NekDouble> > Nektar::SolverUtils::Advection3DHomogeneous1D::m_outarrayPlane
protected

Definition at line 71 of file Advection3DHomogeneous1D.h.

Referenced by v_Advect(), and v_InitObject().

SolverUtils::AdvectionSharedPtr Nektar::SolverUtils::Advection3DHomogeneous1D::m_planeAdv
protected

Definition at line 62 of file Advection3DHomogeneous1D.h.

Referenced by Advection3DHomogeneous1D(), v_Advect(), and v_InitObject().

int Nektar::SolverUtils::Advection3DHomogeneous1D::m_planeCounter
protected

Definition at line 66 of file Advection3DHomogeneous1D.h.

Referenced by ModifiedFluxVector(), and v_InitObject().

Array<OneD, unsigned int> Nektar::SolverUtils::Advection3DHomogeneous1D::m_planePos
protected

Definition at line 68 of file Advection3DHomogeneous1D.h.

Referenced by v_Advect(), and v_InitObject().

Array<OneD, unsigned int> Nektar::SolverUtils::Advection3DHomogeneous1D::m_planes
protected

Definition at line 67 of file Advection3DHomogeneous1D.h.

Referenced by v_InitObject().

std::string Nektar::SolverUtils::Advection3DHomogeneous1D::type
static