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CourantNo.H

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00001 /*---------------------------------------------------------------------------*\
00002   =========                 |
00003   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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00005     \\  /    A nd           | Copyright (C) 1991-2005 OpenCFD Ltd.
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00008 License
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00010 
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00020 
00021     You should have received a copy of the GNU General Public License
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00023     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
00024 
00025 Global
00026     CourantNo
00027 
00028 Description
00029     Calculates and outputs the mean and maximum Courant Numbers.
00030 
00031 \*---------------------------------------------------------------------------*/
00032 
00033 scalar CoNum = 0.0;
00034 scalar meanCoNum = 0.0;
00035 
00036 if (mesh.nInternalFaces())
00037 {
00038     surfaceScalarField SfUfbyDelta = 
00039         mesh.surfaceInterpolation::deltaCoeffs()*mag(phi);
00040 
00041     CoNum = max(SfUfbyDelta/mesh.magSf())
00042         .value()*runTime.deltaT().value();
00043 
00044     meanCoNum = (sum(SfUfbyDelta)/sum(mesh.magSf()))
00045         .value()*runTime.deltaT().value();
00046 }
00047 
00048 Info<< "Mean and max Courant Numbers = "
00049     << meanCoNum << " " << CoNum << endl;
00050 
00051 // ************************************************************************* //
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