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LimitFuncs.H

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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     LimitFuncs
00027 
00028 Description
00029 
00030     Class to create NVD/TVD limited weighting-factors.
00031     The particular differencing scheme class is supplied as a template argument,
00032     the weight function of which is called by the weight function of this class
00033     for the internal faces as well as faces of coupled patches
00034     (e.g. processor-processor patches). The weight function is supplied the
00035     central-differencing weighting factor, the face-flux, the cell and face
00036     gradients (from which the normalised variable distribution may be created)
00037     and the cell centre distance.
00038 
00039     This code organisation is both neat and efficient, allowing for convenient
00040     implementation of new schemes to run on parallelised cases.
00041 
00042 SourceFiles
00043     LimitFuncs.C
00044 
00045 \*---------------------------------------------------------------------------*/
00046 
00047 #ifndef LimitFuncs_H
00048 #define LimitFuncs_H
00049 
00050 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00051 
00052 namespace Foam
00053 {
00054 
00055 namespace limitFuncs
00056 {
00057 
00058 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00059 
00060 template<class Type>
00061 class null
00062 {
00063 public:
00064 
00065     null()
00066     {}
00067 
00068     inline tmp<GeometricField<Type, fvPatchField, volMesh> > operator()
00069     (
00070         const GeometricField<Type, fvPatchField, volMesh>& phi
00071     ) const
00072     {
00073         return phi;
00074     }
00075 };
00076 
00077 
00078 template<class Type>
00079 class magSqr
00080 {
00081 public:
00082 
00083     magSqr()
00084     {}
00085 
00086     inline tmp<volScalarField> operator()
00087     (
00088         const GeometricField<Type, fvPatchField, volMesh>&
00089     ) const;
00090 };
00091 
00092 
00093 template<class Type>
00094 class rhoMagSqr
00095 {
00096 public:
00097 
00098     rhoMagSqr()
00099     {}
00100 
00101     inline tmp<volScalarField> operator()
00102     (
00103         const GeometricField<Type, fvPatchField, volMesh>&
00104     ) const;
00105 };
00106 
00107 
00108 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00109 
00110 } // End namespace limitFuncs
00111 } // End namespace Foam
00112 
00113 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00114 
00115 #ifdef NoRepository
00116 #   include "LimitFuncs.C"
00117 #endif
00118 
00119 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00120 
00121 #endif
00122 
00123 // ************************************************************************* //
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