mQGDCourantNo.H

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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2019 OpenCFD Ltd.
    Copyright (C) 2016-2019 ISP RAS (www.ispras.ru) UniCFD Group (www.unicfd.ru)
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License
    This file is part of QGDsolver, based on OpenFOAM library.

    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 3 of the License, or
    (at your option) any later version.

    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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    You should have received a copy of the GNU General Public License
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Global
    mQGDCourantNo

Group 
    grpQGDcommon

Description
    Calculates the maximum mass flux based Courant Number.

\*---------------------------------------------------------------------------*/
if(runTime.controlDict().lookupOrDefault<bool>("adjustTimeStep", false))
{
    if (mesh.nInternalFaces())
    {
        scalarField sumPhi
        (
            fvc::surfaceSum(mag(phiJm))().primitiveField()
            / rho.primitiveField()
        );
        
         CoNum = 0.5*gMax(sumPhi/mesh.V().field())*runTime.deltaTValue();
    }
    
    Info << "Courant Number = " << CoNum << endl;
}

// ************************************************************************* //