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fvcCurl.C

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00001 /*---------------------------------------------------------------------------*\
00002   =========                 |
00003   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
00004    \\    /   O peration     |
00005     \\  /    A nd           | Copyright (C) 1991-2010 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
00013     the Free Software Foundation, either version 3 of the License, or
00014     (at your 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, see <http://www.gnu.org/licenses/>.
00023 
00024 Description
00025     
00026 
00027 \*---------------------------------------------------------------------------*/
00028 
00029 #include "fvcCurl.H"
00030 #include "fvcGrad.H"
00031 #include <finiteVolume/fvMesh.H>
00032 
00033 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00034 
00035 namespace Foam
00036 {
00037 
00038 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00039 
00040 namespace fvc
00041 {
00042 
00043 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00044 
00045 template<class Type>
00046 tmp<GeometricField<Type, fvPatchField, volMesh> >
00047 curl
00048 (
00049     const GeometricField<Type, fvPatchField, volMesh>& vf
00050 )
00051 {
00052     word nameCurlVf = "curl(" + vf.name() + ')';
00053 
00054     // Gausses theorem curl
00055     // tmp<GeometricField<Type, fvPatchField, volMesh> > tcurlVf = 
00056     //     fvc::surfaceIntegrate(vf.mesh().Sf() ^ fvc::interpolate(vf));
00057 
00058     // Calculate curl as the Hodge dual of the skew-symmetric part of grad
00059     tmp<GeometricField<Type, fvPatchField, volMesh> > tcurlVf = 
00060         2.0*(*skew(fvc::grad(vf, nameCurlVf)));
00061 
00062     tcurlVf().rename(nameCurlVf);
00063 
00064     return tcurlVf;
00065 }
00066 
00067 
00068 template<class Type>
00069 tmp<GeometricField<Type, fvPatchField, volMesh> >
00070 curl
00071 (
00072     const tmp<GeometricField<Type, fvPatchField, volMesh> >& tvf
00073 )
00074 {
00075     tmp<GeometricField<Type, fvPatchField, volMesh> > Curl(fvc::curl(tvf()));
00076     tvf.clear();
00077     return Curl;
00078 }
00079 
00080 
00081 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00082 
00083 } // End namespace fvc
00084 
00085 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00086 
00087 } // End namespace Foam
00088 
00089 // ************************ vim: set sw=4 sts=4 et: ************************ //
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