Nektar++
LinearSWESolver.cpp
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1///////////////////////////////////////////////////////////////////////////////
2//
3// File: LinearSWESolver.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// Permission is hereby granted, free of charge, to any person obtaining a
14// copy of this software and associated documentation files (the "Software"),
15// to deal in the Software without restriction, including without limitation
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23// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
24// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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30//
31// Description: Linearized Shallow water Riemann solver.
32//
33///////////////////////////////////////////////////////////////////////////////
34
36
37namespace Nektar
38{
39
42 : RiemannSolver(pSession), m_pointSolve(true)
43{
44 m_requiresRotation = true;
45}
46
48 [[maybe_unused]] const int nDim,
49 const Array<OneD, const Array<OneD, NekDouble>> &Fwd,
50 const Array<OneD, const Array<OneD, NekDouble>> &Bwd,
52{
53 // extract the forward and backward trace of the depth
54 const Array<OneD, NekDouble> &dFwd = m_scalars["depthFwd"]();
55 const Array<OneD, NekDouble> &dBwd = m_scalars["depthBwd"]();
56
57 if (m_pointSolve)
58 {
59
60 int expDim = Fwd.size() - 1;
61 NekDouble vf;
62
63 if (expDim == 1)
64 {
65 for (int i = 0; i < Fwd[0].size(); ++i)
66 {
67 v_PointSolve(Fwd[0][i], Fwd[1][i], 0.0, dFwd[i], Bwd[0][i],
68 Bwd[1][i], 0.0, dBwd[i], flux[0][i], flux[1][i],
69 vf);
70 }
71 }
72 else if (expDim == 2)
73 {
74 for (int i = 0; i < Fwd[0].size(); ++i)
75 {
76 v_PointSolve(Fwd[0][i], Fwd[1][i], Fwd[2][i], dFwd[i],
77 Bwd[0][i], Bwd[1][i], Bwd[2][i], dBwd[i],
78 flux[0][i], flux[1][i], flux[2][i]);
79 }
80 }
81 else if (expDim == 3)
82 {
83 ASSERTL0(false, "No 3D Shallow water supported.");
84 }
85 }
86 else
87 {
88 v_ArraySolve(Fwd, Bwd, flux);
89 }
90}
91
92} // namespace Nektar
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:208
virtual void v_PointSolve(NekDouble etaL, NekDouble uL, NekDouble vL, NekDouble dL, NekDouble etaR, NekDouble uR, NekDouble vR, NekDouble dR, NekDouble &etaf, NekDouble &uf, NekDouble &vf)
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) override
LinearSWESolver(const LibUtilities::SessionReaderSharedPtr &pSession)
virtual void v_ArraySolve(const Array< OneD, const Array< OneD, NekDouble > > &Fwd, const Array< OneD, const Array< OneD, NekDouble > > &Bwd, Array< OneD, Array< OneD, NekDouble > > &flux)
The RiemannSolver class provides an abstract interface under which solvers for various Riemann proble...
Definition: RiemannSolver.h:58
bool m_requiresRotation
Indicates whether the Riemann solver requires a rotation to be applied to the velocity fields.
std::map< std::string, RSScalarFuncType > m_scalars
Map of scalar function types.
std::shared_ptr< SessionReader > SessionReaderSharedPtr
double NekDouble