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RiemannSolvers/APESolver.cpp
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File: APESolver.cpp
4 //
5 // For more information, please see: http://www.nektar.info
6 //
7 // The MIT License
8 //
9 // Copyright (c) 2015 Kilian Lackhove
10 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
11 // Department of Aeronautics, Imperial College London (UK), and Scientific
12 // Computing and Imaging Institute, University of Utah (USA).
13 //
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32 //
33 // Description: Riemann solver base classs for the APE equations.
34 //
35 ///////////////////////////////////////////////////////////////////////////////
36 
38 
39 using namespace std;
40 
41 namespace Nektar
42 {
43 
44 /**
45 *
46 */
47 APESolver::APESolver() :
49 {
50  m_requiresRotation = true;
51 }
52 
53 
54 /**
55 *
56 */
58  const int nDim,
59  const Array<OneD, const Array<OneD, NekDouble> > &Fwd,
60  const Array<OneD, const Array<OneD, NekDouble> > &Bwd,
62 {
64 
65  int expDim = nDim;
66  NekDouble vF, wF, rhoF;
67 
68  if (expDim == 1)
69  {
70  for (int i = 0; i < Fwd[0].num_elements(); ++i)
71  {
73  Fwd[0][i], 0.0, Fwd[1][i], 0.0, 0.0,
74  Bwd[0][i], 0.0, Bwd[1][i], 0.0, 0.0,
75  bf[0][i], bf[1][i], bf[2][i], 0.0, 0.0,
76  flux[0][i], rhoF, flux[1][i], vF, wF);
77  }
78  }
79  else if (expDim == 2)
80  {
81  for (int i = 0; i < Fwd[0].num_elements(); ++i)
82  {
84  Fwd[0][i], 0.0, Fwd[1][i], Fwd[2][i], 0.0,
85  Bwd[0][i], 0.0, Bwd[1][i], Bwd[2][i], 0.0,
86  bf[0][i], bf[1][i], bf[2][i], bf[3][i], 0.0,
87  flux[0][i], rhoF, flux[1][i], flux[2][i], wF);
88  }
89  }
90  else if (expDim == 3)
91  {
92  for (int i = 0; i < Fwd[0].num_elements(); ++i)
93  {
95  Fwd[0][i], 0.0, Fwd[1][i], Fwd[2][i], Fwd[3][i],
96  Bwd[0][i], 0.0, Bwd[1][i], Bwd[2][i], Bwd[3][i],
97  bf[0][i], bf[1][i], bf[2][i], bf[3][i], bf[4][i],
98  flux[0][i], rhoF, flux[1][i], flux[2][i], flux[3][i]);
99  }
100  }
101 }
102 
103 
104 /**
105 *
106 */
108 {
109  ASSERTL1(CheckVectors("N"), "N not defined.");
110  ASSERTL1(CheckVectors("basefield"), "basefield not defined.");
111  const Array<OneD, const Array<OneD, NekDouble> > normals = m_vectors["N"]();
112  const Array<OneD, const Array<OneD, NekDouble> > basefield =
113  m_vectors["basefield"]();
114 
115  int nTracePts = normals[0].num_elements();
116  int nDim = normals.num_elements();
117 
118  Array< OneD, Array< OneD, NekDouble > > rotBasefield(nDim+2);
119  for (int i = 0; i < nDim + 2; i++)
120  {
121  rotBasefield[i] = Array<OneD, NekDouble>(nTracePts);
122  }
123  Array<OneD, Array<OneD, NekDouble> > baseVecLocs(1);
124  baseVecLocs[0] = Array<OneD, NekDouble>(nDim);
125  for (int i = 0; i < nDim; ++i)
126  {
127  baseVecLocs[0][i] = i + 2;
128  }
129  rotateToNormal(basefield, normals, baseVecLocs, rotBasefield);
130 
131  return rotBasefield;
132 }
133 
134 }
Array< OneD, Array< OneD, NekDouble > > GetRotBasefield()
STL namespace.
SOLVER_UTILS_EXPORT bool CheckVectors(std::string name)
Determine whether a vector has been defined in m_vectors.
virtual void v_Solve(const int nDim, const Array< OneD, const Array< OneD, NekDouble > > &Fwd, const Array< OneD, const Array< OneD, NekDouble > > &Bwd, Array< OneD, Array< OneD, NekDouble > > &flux)
double NekDouble
bool m_requiresRotation
Indicates whether the Riemann solver requires a rotation to be applied to the velocity fields...
The RiemannSolver class provides an abstract interface under which solvers for various Riemann proble...
Definition: RiemannSolver.h:62
virtual void v_PointSolve(NekDouble pL, NekDouble rhoL, NekDouble uL, NekDouble vL, NekDouble wL, NekDouble pR, NekDouble rhoR, NekDouble uR, NekDouble vR, NekDouble wR, NekDouble p0, NekDouble rho0, NekDouble u0, NekDouble v0, NekDouble w0, NekDouble &pF, NekDouble &rhoF, NekDouble &uF, NekDouble &vF, NekDouble &wF)
Definition: APESolver.h:59
#define ASSERTL1(condition, msg)
Assert Level 1 – Debugging which is used whether in FULLDEBUG or DEBUG compilation mode...
Definition: ErrorUtil.hpp:228
std::map< std::string, RSVecFuncType > m_vectors
Map of vector function types.
SOLVER_UTILS_EXPORT void rotateToNormal(const Array< OneD, const Array< OneD, NekDouble > > &inarray, const Array< OneD, const Array< OneD, NekDouble > > &normals, const Array< OneD, const Array< OneD, NekDouble > > &vecLocs, Array< OneD, Array< OneD, NekDouble > > &outarray)
Rotate a vector field to trace normal.