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Projection.cpp
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2 //
3 // File Projection.cpp
4 //
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9 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
10 // Department of Aeronautics, Imperial College London (UK), and Scientific
11 // Computing and Imaging Institute, University of Utah (USA).
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31 //
32 // Description: Projection solve routines
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
37 
38 using namespace std;
39 
40 namespace Nektar
41 {
42 string Projection::className =
44  Projection::create);
45 Projection::Projection(const LibUtilities::SessionReaderSharedPtr &pSession)
46  : EquationSystem(pSession)
47 {
48 }
49 
51 {
53 
54  EvaluateFunction(m_session->GetVariables(), m_fields, "Forcing");
55 }
56 
58 {
59 }
60 
62 {
63  for (int i = 0; i < m_fields.num_elements(); ++i)
64  {
65  // Zero field so initial conditions are zero
66  Vmath::Zero(m_fields[i]->GetNcoeffs(), m_fields[i]->UpdateCoeffs(), 1);
67  m_fields[i]->FwdTrans(m_fields[i]->GetPhys(),
68  m_fields[i]->UpdateCoeffs());
69  m_fields[i]->SetPhysState(false);
70  }
71 }
72 
74 {
76  for (int i = 0; i < m_fields.num_elements(); ++i)
77  {
78  stringstream name;
79  name << "Forcing func [" << i << "]";
81  s, name.str(),
82  m_session->GetFunction("Forcing", i)->GetExpression());
83  }
84 }
85 }
A base class for describing how to solve specific equations.
std::vector< std::pair< std::string, std::string > > SummaryList
Definition: Misc.h:47
STL namespace.
boost::shared_ptr< SessionReader > SessionReaderSharedPtr
Definition: MeshPartition.h:51
virtual SOLVER_UTILS_EXPORT void v_InitObject()
Initialisation object for EquationSystem.
void AddSummaryItem(SummaryList &l, const std::string &name, const std::string &value)
Adds a summary item to the summary info list.
Definition: Misc.cpp:50
SOLVER_UTILS_EXPORT void EvaluateFunction(Array< OneD, Array< OneD, NekDouble > > &pArray, std::string pFunctionName, const NekDouble pTime=0.0, const int domain=0)
Evaluates a function as specified in the session file.
EquationSystemFactory & GetEquationSystemFactory()
virtual ~Projection()
Definition: Projection.cpp:57
virtual void v_DoSolve()
Virtual function for solve implementation.
Definition: Projection.cpp:61
Array< OneD, MultiRegions::ExpListSharedPtr > m_fields
Array holding all dependent variables.
LibUtilities::SessionReaderSharedPtr m_session
The session reader.
SOLVER_UTILS_EXPORT int GetNcoeffs()
SOLVER_UTILS_EXPORT void SessionSummary(SummaryList &vSummary)
Write out a session summary.
virtual void v_GenerateSummary(SolverUtils::SummaryList &s)
Virtual function for generating summary information.
Definition: Projection.cpp:73
void Zero(int n, T *x, const int incx)
Zero vector.
Definition: Vmath.cpp:373
virtual void v_InitObject()
Initialisation object for EquationSystem.
Definition: Projection.cpp:50
tKey RegisterCreatorFunction(tKey idKey, CreatorFunction classCreator, tDescription pDesc="")
Register a class with the factory.
Definition: NekFactory.hpp:215