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00001 /*---------------------------------------------------------------------------*\ 00002 ========= | 00003 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 00004 \\ / O peration | 00005 \\ / A nd | Copyright (C) 1991-2005 OpenCFD Ltd. 00006 \\/ M anipulation | 00007 ------------------------------------------------------------------------------- 00008 License 00009 This file is part of OpenFOAM. 00010 00011 OpenFOAM is free software; you can redistribute it and/or modify it 00012 under the terms of the GNU General Public License as published by the 00013 Free Software Foundation; either version 2 of the License, or (at your 00014 option) any later version. 00015 00016 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT 00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00018 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 00019 for more details. 00020 00021 You should have received a copy of the GNU General Public License 00022 along with OpenFOAM; if not, write to the Free Software Foundation, 00023 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00024 00025 Class 00026 upwind 00027 00028 Description 00029 Upwind differencing scheme class. 00030 00031 SourceFiles 00032 upwind.C 00033 00034 \*---------------------------------------------------------------------------*/ 00035 00036 #ifndef upwind_H 00037 #define upwind_H 00038 00039 #include "limitedSurfaceInterpolationScheme.H" 00040 #include "volFields.H" 00041 #include "surfaceFields.H" 00042 00043 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00044 00045 namespace Foam 00046 { 00047 00048 /*---------------------------------------------------------------------------*\ 00049 Class upwind Declaration 00050 \*---------------------------------------------------------------------------*/ 00051 00052 template<class Type> 00053 class upwind 00054 : 00055 public limitedSurfaceInterpolationScheme<Type> 00056 { 00057 // Private Member Functions 00058 00059 //- Disallow default bitwise assignment 00060 void operator=(const upwind&); 00061 00062 00063 public: 00064 00065 //- Runtime type information 00066 TypeName("upwind"); 00067 00068 00069 // Constructors 00070 00071 //- Construct from faceFlux 00072 upwind 00073 ( 00074 const fvMesh& mesh, 00075 const surfaceScalarField& faceFlux 00076 ) 00077 : 00078 limitedSurfaceInterpolationScheme<Type>(mesh, faceFlux) 00079 {} 00080 00081 //- Construct from Istream. 00082 // The name of the flux field is read from the Istream and looked-up 00083 // from the mesh objectRegistry 00084 upwind 00085 ( 00086 const fvMesh& mesh, 00087 Istream& is 00088 ) 00089 : 00090 limitedSurfaceInterpolationScheme<Type>(mesh, is) 00091 {} 00092 00093 //- Construct from faceFlux and Istream 00094 upwind 00095 ( 00096 const fvMesh& mesh, 00097 const surfaceScalarField& faceFlux, 00098 Istream& 00099 ) 00100 : 00101 limitedSurfaceInterpolationScheme<Type>(mesh, faceFlux) 00102 {} 00103 00104 00105 // Member Functions 00106 00107 //- Return the interpolation limiter 00108 virtual tmp<surfaceScalarField> limiter 00109 ( 00110 const GeometricField<Type, fvPatchField, volMesh>& 00111 ) const 00112 { 00113 return tmp<surfaceScalarField> 00114 ( 00115 new surfaceScalarField 00116 ( 00117 IOobject 00118 ( 00119 "limiter", 00120 this->mesh().time().timeName(), 00121 this->mesh() 00122 ), 00123 this->mesh(), 00124 dimensionedScalar("limiter", dimless, 0.0) 00125 ) 00126 ); 00127 } 00128 00129 //- Return the interpolation weighting factors 00130 tmp<surfaceScalarField> weights() const 00131 { 00132 return pos(this->faceFlux_); 00133 } 00134 00135 //- Return the interpolation weighting factors 00136 virtual tmp<surfaceScalarField> weights 00137 ( 00138 const GeometricField<Type, fvPatchField, volMesh>& 00139 ) const 00140 { 00141 return weights(); 00142 } 00143 }; 00144 00145 00146 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00147 00148 } // End namespace Foam 00149 00150 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00151 00152 #endif 00153 00154 // ************************************************************************* //