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midPoint.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     midPoint
00027 
00028 Description
00029     Mid-point interpolation (weighting factors = 0.5) scheme class.
00030 
00031 SourceFiles
00032     midPoint.C
00033 
00034 \*---------------------------------------------------------------------------*/
00035 
00036 #ifndef midPoint_H
00037 #define midPoint_H
00038 
00039 #include "surfaceInterpolationScheme.H"
00040 #include "volFields.H"
00041 
00042 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00043 
00044 namespace Foam
00045 {
00046 
00047 /*---------------------------------------------------------------------------*\
00048                            Class midPoint Declaration
00049 \*---------------------------------------------------------------------------*/
00050 
00051 template<class Type>
00052 class midPoint
00053 :
00054     public surfaceInterpolationScheme<Type>
00055 {
00056     // Private Member Functions
00057 
00058         //- Disallow default bitwise assignment
00059         void operator=(const midPoint&);
00060 
00061 
00062 public:
00063 
00064     //- Runtime type information
00065     TypeName("midPoint");
00066 
00067 
00068     // Constructors
00069 
00070         //- Construct from mesh
00071         midPoint(const fvMesh& mesh)
00072         :
00073             surfaceInterpolationScheme<Type>(mesh)
00074         {}
00075 
00076         //- Construct from Istream
00077         midPoint(const fvMesh& mesh, Istream&)
00078         :
00079             surfaceInterpolationScheme<Type>(mesh)
00080         {}
00081 
00082         //- Construct from faceFlux and Istream
00083         midPoint
00084         (
00085             const fvMesh& mesh,
00086             const surfaceScalarField&,
00087             Istream&
00088         )
00089         :
00090             surfaceInterpolationScheme<Type>(mesh)
00091         {}
00092 
00093 
00094     // Member Functions
00095 
00096         //- Return the interpolation weighting factors
00097         tmp<surfaceScalarField> weights
00098         (
00099             const GeometricField<Type, fvPatchField, volMesh>&
00100         ) const
00101         {
00102             tmp<surfaceScalarField> taw
00103             (
00104                 new surfaceScalarField
00105                 (
00106                     IOobject
00107                     (
00108                         "midPointWeights",
00109                         this->mesh().time().timeName(),
00110                         this->mesh()
00111                     ),
00112                     this->mesh(),
00113                     dimensionedScalar("0.5", dimless, 0.5)
00114                 )
00115             );
00116 
00117             surfaceScalarField::GeometricBoundaryField& awbf =
00118                 taw().boundaryField();
00119 
00120             forAll(awbf, patchi)
00121             {
00122                 if (!awbf[patchi].coupled())
00123                 {
00124                     awbf[patchi] = 1.0;
00125                 }
00126             }
00127 
00128             return taw;
00129         }
00130 };
00131 
00132 
00133 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00134 
00135 } // End namespace Foam
00136 
00137 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00138 
00139 #endif
00140 
00141 // ************************************************************************* //
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