1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
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.
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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
22 along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
28 Class with limiter function which returns the limiter for the
29 van Leer's MUSCL differencing scheme.
31 Used in conjunction with the template class LimitedScheme.
36 \*---------------------------------------------------------------------------*/
43 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
48 /*---------------------------------------------------------------------------*\
49 Class MUSCLLimiter Declaration
50 \*---------------------------------------------------------------------------*/
52 template<class LimiterFunc>
60 MUSCLLimiter(Istream&)
65 const scalar cdWeight,
66 const scalar faceFlux,
67 const typename LimiterFunc::phiType& phiP,
68 const typename LimiterFunc::phiType& phiN,
69 const typename LimiterFunc::gradPhiType& gradcP,
70 const typename LimiterFunc::gradPhiType& gradcN,
74 scalar r = LimiterFunc::r
76 faceFlux, phiP, phiN, gradcP, gradcN, d
79 return max(min(min(2*r, 0.5*r + 0.5), 2), 0);
84 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
86 } // End namespace Foam
88 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
92 // ************************************************************************* //