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NonlinearSWESolver.cpp
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File: NonlinearSWESolver.cpp
4 //
5 // For more information, please see: http://www.nektar.info
6 //
7 // The MIT License
8 //
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).
12 //
13 // License for the specific language governing rights and limitations under
14 // Permission is hereby granted, free of charge, to any person obtaining a
15 // copy of this software and associated documentation files (the "Software"),
16 // to deal in the Software without restriction, including without limitation
17 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 // and/or sell copies of the Software, and to permit persons to whom the
19 // Software is furnished to do so, subject to the following conditions:
20 //
21 // The above copyright notice and this permission notice shall be included
22 // in all copies or substantial portions of the Software.
23 //
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
25 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
27 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
29 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
30 // DEALINGS IN THE SOFTWARE.
31 //
32 // Description: Shallow water Riemann solver.
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
37 
38 namespace Nektar
39 {
41  m_pointSolve(true)
42  {
43  m_requiresRotation = true;
44  }
45 
47  const int nDim,
48  const Array<OneD, const Array<OneD, NekDouble> > &Fwd,
49  const Array<OneD, const Array<OneD, NekDouble> > &Bwd,
50  Array<OneD, Array<OneD, NekDouble> > &flux)
51  {
52  if (m_pointSolve)
53  {
54  int expDim = Fwd.num_elements()-1;
55  NekDouble hvf;
56 
57  if (expDim == 1)
58  {
59  for (int i = 0; i < Fwd[0].num_elements(); ++i)
60  {
62  Fwd [0][i], Fwd [1][i], 0.0,
63  Bwd [0][i], Bwd [1][i], 0.0,
64  flux[0][i], flux[1][i], hvf);
65  }
66  }
67  else if (expDim == 2)
68  {
69  for (int i = 0; i < Fwd[0].num_elements(); ++i)
70  {
72  Fwd [0][i], Fwd [1][i], Fwd [2][i],
73  Bwd [0][i], Bwd [1][i], Bwd [2][i],
74  flux[0][i], flux[1][i], flux[2][i]);
75  }
76  }
77  else if (expDim == 3)
78  {
79  ASSERTL0(false, "No 3D Shallow water supported.");
80  }
81  }
82  else
83  {
84  v_ArraySolve(Fwd, Bwd, flux);
85  }
86  }
87 }