1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2008 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 the
13 Free Software Foundation; either version 2 of the License, or (at your
14 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
21 You should have received a copy of the GNU General Public License
22 along with OpenFOAM; if not, write to the Free Software Foundation,
23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 Calculates and outputs the mean and maximum Courant Numbers.
31 \*---------------------------------------------------------------------------*/
34 scalar meanStCoNum = 0.0;
36 if (mesh.nInternalFaces())
38 surfaceScalarField SfUfbyDelta =
39 mesh.surfaceInterpolation::deltaCoeffs()
40 *mag(phiSt/fvc::interpolate(rho));
42 StCoNum = max(SfUfbyDelta/mesh.magSf())
43 .value()*runTime.deltaT().value();
45 meanStCoNum = (sum(SfUfbyDelta)/sum(mesh.magSf()))
46 .value()*runTime.deltaT().value();
49 Info<< "St courant Number mean: " << meanStCoNum
50 << " max: " << StCoNum << endl;
53 // ************************************************************************* //