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finiteVolume
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limitedSchemes
LimitedScheme
NVDTVD.H
Go to the documentation of this file.
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::NVDTVD
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Description
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Foam::NVDTVD
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\*---------------------------------------------------------------------------*/
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#ifndef NVDTVD_H
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#define NVDTVD_H
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace
Foam
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{
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/*---------------------------------------------------------------------------*\
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Class LimitedScheme Declaration
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\*---------------------------------------------------------------------------*/
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class
NVDTVD
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{
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public
:
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typedef
scalar
phiType
;
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typedef
vector
gradPhiType
;
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// Null Constructor
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NVDTVD
()
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{}
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// Member Functions
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scalar
phict
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(
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const
scalar faceFlux,
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const
scalar phiP,
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const
scalar phiN,
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const
vector
& gradcP,
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const
vector
& gradcN,
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const
vector
&
d
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)
const
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{
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scalar gradf = phiN - phiP;
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scalar gradcf;
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if
(faceFlux > 0)
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{
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gradcf = d & gradcP;
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}
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else
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{
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gradcf = d & gradcN;
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}
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// Stabilise for division
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gradcf =
stabilise
(gradcf, VSMALL);
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return
1 - 0.5*gradf/gradcf;
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}
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scalar
r
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(
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const
scalar faceFlux,
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const
scalar phiP,
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const
scalar phiN,
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const
vector
& gradcP,
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const
vector
& gradcN,
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const
vector
& d
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)
const
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{
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scalar gradf = phiN - phiP;
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scalar gradcf;
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if
(faceFlux > 0)
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{
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gradcf = d & gradcP;
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}
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else
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{
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gradcf = d & gradcN;
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}
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// Stabilise for division
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gradf =
stabilise
(gradf, VSMALL);
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return
2*(gradcf/gradf) - 1;
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}
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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}
// End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************ vim: set sw=4 sts=4 et: ************************ //