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ExtrapOrder0BC.cpp
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3 // File: ExtrapOrder0BC.cpp
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31 //
32 // Description: Extrapolation of order 0 boundary condition
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #include "ExtrapOrder0BC.h"
37 
38 using namespace std;
39 
40 namespace Nektar
41 {
42 
43 std::string ExtrapOrder0BC::className = GetCFSBndCondFactory().
44  RegisterCreatorFunction("ExtrapOrder0",
45  ExtrapOrder0BC::create,
46  "Extrapolation of order 0 boundary condition.");
47 
48 ExtrapOrder0BC::ExtrapOrder0BC(const LibUtilities::SessionReaderSharedPtr& pSession,
50  const Array<OneD, Array<OneD, NekDouble> >& pTraceNormals,
51  const int pSpaceDim,
52  const int bcRegion,
53  const int cnt)
54  : CFSBndCond(pSession, pFields, pTraceNormals, pSpaceDim, bcRegion, cnt)
55 {
56 }
57 
60  Array<OneD, Array<OneD, NekDouble> > &physarray,
61  const NekDouble &time)
62 {
63  int i, j;
64  int e, pnt;
65  int id1, id2, nBCEdgePts;
66  int nVariables = physarray.num_elements();
67  int nDimensions = m_spacedim;
68 
69  const Array<OneD, const int> &traceBndMap
70  = m_fields[0]->GetTraceBndMap();
71 
72  int eMax;
73 
74  eMax = m_fields[0]->GetBndCondExpansions()[m_bcRegion]->GetExpSize();
75 
76  // Loop on m_bcRegions
77  for (e = 0; e < eMax; ++e)
78  {
79  nBCEdgePts = m_fields[0]->GetBndCondExpansions()[m_bcRegion]->
80  GetExp(e)->GetTotPoints();
81  id1 = m_fields[0]->GetBndCondExpansions()[m_bcRegion]->
82  GetPhys_Offset(e) ;
83  id2 = m_fields[0]->GetTrace()->GetPhys_Offset(traceBndMap[m_offset+e]);
84 
85  // Loop on points of m_bcRegion 'e'
86  for (i = 0; i < nBCEdgePts; i++)
87  {
88  pnt = id2+i;
89 
90  // Setting up bcs for density and velocities
91  for (j = 0; j <=nDimensions; ++j)
92  {
93  (m_fields[j]->GetBndCondExpansions()[m_bcRegion]->
94  UpdatePhys())[id1+i] = Fwd[j][pnt];
95  }
96 
97  // Setting up bcs for energy
98  (m_fields[nVariables-1]->GetBndCondExpansions()[m_bcRegion]->
99  UpdatePhys())[id1+i] = Fwd[nVariables-1][pnt];
100  }
101  }
102 }
103 
104 }
virtual void v_Apply(Array< OneD, Array< OneD, NekDouble > > &Fwd, Array< OneD, Array< OneD, NekDouble > > &physarray, const NekDouble &time)
int m_spacedim
Space dimension.
Definition: CFSBndCond.h:90
STL namespace.
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array of fields.
Definition: CFSBndCond.h:86
boost::shared_ptr< SessionReader > SessionReaderSharedPtr
Definition: MeshPartition.h:51
CFSBndCondFactory & GetCFSBndCondFactory()
Declaration of the boundary condition factory singleton.
Definition: CFSBndCond.cpp:42
Encapsulates the user-defined boundary conditions for compressible flow solver.
Definition: CFSBndCond.h:71
double NekDouble
int m_offset
Offset.
Definition: CFSBndCond.h:103
int m_bcRegion
Id of the boundary region.
Definition: CFSBndCond.h:101