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StandardExtrapolate.cpp
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2 //
3 // File: StandardExtrapolate.cpp
4 //
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7 // The MIT License
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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: Abstract base class for StandardExtrapolate.
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
38 
39 namespace Nektar
40 {
41  /**
42  * Registers the class with the Factory.
43  */
45  "Standard",
47  "Standard");
48 
53  const Array<OneD, int> pVel,
54  const SolverUtils::AdvectionSharedPtr advObject)
55  : Extrapolate(pSession,pFields,pPressure,pVel,advObject)
56  {
57  }
58 
60  {
61  }
62 
63 
64 
65  /**
66  * Function to extrapolate the new pressure boundary condition.
67  * Based on the velocity field and on the advection term.
68  * Acceleration term is also computed.
69  * This routine is a general one for 2d and 3D application and it can be called
70  * directly from velocity correction scheme. Specialisation on dimensionality is
71  * redirected to the CalcNeumannPressureBCs method.
72  */
74  const Array<OneD, const Array<OneD, NekDouble> > &fields,
75  const Array<OneD, const Array<OneD, NekDouble> > &N,
76  NekDouble kinvis)
77  {
79  if(m_HBCdata.num_elements()>0)
80  {
81  // Rotate HOPBCs storage
83 
84  // Calculate non-linear and viscous BCs at current level
85  // and put in m_pressureHBCs[0]
86  CalcNeumannPressureBCs(fields,N,kinvis);
87 
88  // calculate (phi,du/dt) and level n which will then be
89  // extrpolated.
90  CalcExplicitDuDt(fields);
91 
92  // Extrapolate to m_pressureHBCs to n+1
94 
95  // Copy m_pressureHBCs to m_PbndExp
97 
98  // Evaluate High order outflow conditiosn if required.
99  CalcOutflowBCs(fields, kinvis);
100  }
101  }
102 
103 
104  /**
105  *
106  */
108  int intMethod,
109  const LibUtilities::TimeIntegrationWrapperSharedPtr &IntegrationScheme)
110  {
111  switch(intMethod)
112  {
114  {
115  m_intSteps = 1;
116  }
117  break;
119  {
120  m_intSteps = 2;
121  }
122  break;
124  {
125  m_intSteps = 3;
126  }
127  break;
128  }
129  }
130 
131  /**
132  *
133  */
135  const Array<OneD, const Array<OneD, NekDouble> > &inarray,
136  NekDouble Aii_DT,
137  NekDouble kinvis)
138  {
139  }
140 
141 
142  /**
143  *
144  */
146  const LibUtilities::TimeIntegrationSolutionSharedPtr &integrationSoln,
147  int nstep,
148  NekDouble time)
149  {
150  }
151 
152 
153  /**
154  *
155  */
157  int nstep)
158  {
159  }
160 
161  /**
162  *
163  */
165  int HBCdata,
166  NekDouble kinvis,
169  {
170  Vmath::Svtvp(HBCdata,-kinvis,Q,1,Advection,1,Q,1);
171  }
172 }
173 
ExtrapolateFactory & GetExtrapolateFactory()
Definition: Extrapolate.cpp:50
virtual void v_MountHOPBCs(int HBCdata, NekDouble kinvis, Array< OneD, NekDouble > &Q, Array< OneD, const NekDouble > &Advection)
boost::shared_ptr< TimeIntegrationWrapper > TimeIntegrationWrapperSharedPtr
void Svtvp(int n, const T alpha, const T *x, const int incx, const T *y, const int incy, T *z, const int incz)
svtvp (scalar times vector plus vector): z = alpha*x + y
Definition: Vmath.cpp:471
boost::shared_ptr< Advection > AdvectionSharedPtr
A shared pointer to an Advection object.
Definition: Advection.h:158
void RollOver(Array< OneD, Array< OneD, NekDouble > > &input)
virtual void v_SubStepAdvance(const LibUtilities::TimeIntegrationSolutionSharedPtr &integrationSoln, int nstep, NekDouble time)
StandardExtrapolate(const LibUtilities::SessionReaderSharedPtr pSession, Array< OneD, MultiRegions::ExpListSharedPtr > pFields, MultiRegions::ExpListSharedPtr pPressure, const Array< OneD, int > pVel, const SolverUtils::AdvectionSharedPtr advObject)
void CopyPressureHBCsToPbndExp(void)
void ExtrapolatePressureHBCs(void)
virtual void v_SubStepSetPressureBCs(const Array< OneD, const Array< OneD, NekDouble > > &inarray, NekDouble Aii_DT, NekDouble kinvis)
boost::shared_ptr< SessionReader > SessionReaderSharedPtr
Definition: MeshPartition.h:51
IMEX 2nd order scheme using Backward Different Formula & Extrapolation.
int m_intSteps
Maximum points used in pressure BC evaluation.
Definition: Extrapolate.h:247
boost::shared_ptr< ExpList > ExpListSharedPtr
Shared pointer to an ExpList object.
double NekDouble
void CalcExplicitDuDt(const Array< OneD, const Array< OneD, NekDouble > > &fields)
Definition: Extrapolate.cpp:83
virtual void v_SubStepSaveFields(int nstep)
int m_pressureCalls
number of times the high-order pressure BCs have been called
Definition: Extrapolate.h:238
static ExtrapolateSharedPtr create(const LibUtilities::SessionReaderSharedPtr &pSession, Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, MultiRegions::ExpListSharedPtr &pPressure, const Array< OneD, int > &pVel, const SolverUtils::AdvectionSharedPtr &advObject)
Creates an instance of this class.
IMEX 3rd order scheme using Backward Different Formula & Extrapolation.
Array< OneD, Array< OneD, NekDouble > > m_pressureHBCs
Storage for current and previous levels of high order pressure boundary conditions.
Definition: Extrapolate.h:271
static std::string className
Name of class.
boost::shared_ptr< TimeIntegrationSolution > TimeIntegrationSolutionSharedPtr
Array< OneD, HBCInfo > m_HBCdata
data structure to old all the information regarding High order pressure BCs
Definition: Extrapolate.h:277
virtual void v_EvaluatePressureBCs(const Array< OneD, const Array< OneD, NekDouble > > &fields, const Array< OneD, const Array< OneD, NekDouble > > &N, NekDouble kinvis)
IMEX 1st order scheme using Euler Backwards/Euler Forwards.
void CalcOutflowBCs(const Array< OneD, const Array< OneD, NekDouble > > &fields, NekDouble kinvis)
virtual void v_SubSteppingTimeIntegration(int intMethod, const LibUtilities::TimeIntegrationWrapperSharedPtr &IntegrationScheme)
Defines a callback function which evaluates the flux vector.
Definition: Advection.h:69
void CalcNeumannPressureBCs(const Array< OneD, const Array< OneD, NekDouble > > &fields, const Array< OneD, const Array< OneD, NekDouble > > &N, NekDouble kinvis)
Definition: Extrapolate.h:179
tKey RegisterCreatorFunction(tKey idKey, CreatorFunction classCreator, tDescription pDesc="")
Register a class with the factory.
Definition: NekFactory.hpp:215