immersedBoundaryCourantNo.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | foam-extend: Open Source CFD
   \\    /   O peration     | Version:     3.2
    \\  /    A nd           | Web:         http://www.foam-extend.org
     \\/     M anipulation  | For copyright notice see file Copyright
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License
    This file is part of foam-extend.
 
    foam-extend 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 3 of the License, or (at your
    option) any later version.
 
    foam-extend is distributed in the hope that it will be useful, but
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    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 foam-extend.  If not, see <http://www.gnu.org/licenses/>.
 
Global
    CourantNo
 
Description
    Calculates and outputs the mean and maximum Courant Numbers with
    immersed boundary correction.
 
\*---------------------------------------------------------------------------*/
 
scalar CoNum = 0.0;
scalar meanCoNum = 0.0;
scalar velMag = 0.0;
 
if (mesh.nInternalFaces())
{
    surfaceScalarField magPhi = mag(faceIbMask*phi);
 
    surfaceScalarField SfUfbyDelta =
        mesh.surfaceInterpolation::deltaCoeffs()*magPhi;
 
    CoNum = max(SfUfbyDelta/mesh.magSf())
        .value()*runTime.deltaT().value();
 
    meanCoNum = (sum(SfUfbyDelta)/sum(mesh.magSf()))
        .value()*runTime.deltaT().value();
 
    velMag = max(magPhi/mesh.magSf()).value();
}
 
Info<< "Courant Number mean: " << meanCoNum
    << " max: " << CoNum
    << " velocity magnitude: " << velMag
    << endl;
 
// ************************************************************************* //