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[OpenFOAM-2.0.x.git] / applications / solvers / multiphase / interFoam / alphaCourantNo.H
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1 /*---------------------------------------------------------------------------*\
2   =========                 |
3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
4    \\    /   O peration     |
5     \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
6      \\/     M anipulation  |
7 -------------------------------------------------------------------------------
8 License
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
17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
19     for more details.
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/>.
24 Global
25     alphaCourantNo
27 Description
28     Calculates and outputs the mean and maximum Courant Numbers.
30 \*---------------------------------------------------------------------------*/
32 scalar maxAlphaCo
34     readScalar(runTime.controlDict().lookup("maxAlphaCo"))
37 scalar alphaCoNum = 0.0;
38 scalar meanAlphaCoNum = 0.0;
40 if (mesh.nInternalFaces())
42     scalarField sumPhi
43     (
44         pos(alpha1 - 0.01)*pos(0.99 - alpha1)
45        *fvc::surfaceSum(mag(phi))().internalField()
46     );
48     alphaCoNum = 0.5*gMax(sumPhi/mesh.V().field())*runTime.deltaTValue();
50     meanAlphaCoNum =
51         0.5*(gSum(sumPhi)/gSum(mesh.V().field()))*runTime.deltaTValue();
54 Info<< "Interface Courant Number mean: " << meanAlphaCoNum
55     << " max: " << alphaCoNum << endl;
57 // ************************************************************************* //