1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 2004-2010 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
11 OpenFOAM is free software: you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by
13 the Free Software Foundation, either version 3 of the License, or
14 (at your option) any later version.
16 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 You should have received a copy of the GNU General Public License
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28 Class with limiter function which returns the limiter for the
29 vanLeer differencing scheme based on r obtained from the LimiterFunc
32 Used in conjunction with the template class LimitedScheme.
37 \*---------------------------------------------------------------------------*/
44 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
49 /*---------------------------------------------------------------------------*\
50 Class vanLeerLimiter Declaration
51 \*---------------------------------------------------------------------------*/
53 template<class LimiterFunc>
61 vanLeerLimiter(Istream&)
67 const scalar faceFlux,
68 const typename LimiterFunc::phiType& phiP,
69 const typename LimiterFunc::phiType& phiN,
70 const typename LimiterFunc::gradPhiType& gradcP,
71 const typename LimiterFunc::gradPhiType& gradcN,
75 scalar r = LimiterFunc::r
77 faceFlux, phiP, phiN, gradcP, gradcN, d
80 return (r + mag(r))/(1 + mag(r));
85 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
87 } // End namespace Foam
89 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
93 // ************************************************************************* //