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foam-extend4.1-coherent-io/applications/solvers/multiphase/cavitatingFoam/CourantNo.H
2010-09-30 23:04:53 +01:00

65 lines
2.2 KiB
C

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright held by original author
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Global
CourantNo
Description
Calculates and outputs the mean and maximum Courant Numbers.
\*---------------------------------------------------------------------------*/
scalar CoNum = 0.0;
scalar meanCoNum = 0.0;
scalar acousticCoNum = 0.0;
scalar velMag = 0.0;
if (mesh.nInternalFaces())
{
surfaceScalarField magPhiv = mag(phiv);
surfaceScalarField SfUfbyDelta =
mesh.surfaceInterpolation::deltaCoeffs()*magPhiv;
CoNum = max(SfUfbyDelta/mesh.magSf())
.value()*runTime.deltaT().value();
meanCoNum = (sum(SfUfbyDelta)/sum(mesh.magSf()))
.value()*runTime.deltaT().value();
velMag = max(magPhiv/mesh.magSf()).value();
acousticCoNum = max
(
mesh.surfaceInterpolation::deltaCoeffs()/sqrt(fvc::interpolate(psi))
).value()*runTime.deltaT().value();
}
Info<< "phiv Courant Number mean: " << meanCoNum
<< " max: " << CoNum
<< " acoustic max: " << acousticCoNum
<< " velocity magnitude: " << velMag
<< endl;
// ************************************************************************* //