QHDCourantNo.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
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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    You should have received a copy of the GNU General Public License
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Global
    QHDCourantNo

Description
    Calculates the mean and maximum wave speed based Courant Numbers.

\*---------------------------------------------------------------------------*/

if(runTime.controlDict().lookupOrDefault<bool>("adjustTimeStep", false))
{
    surfaceScalarField Unf
    (
        "Unf",
        Uf & mesh.Sf() / mesh.magSf()
    );
    
    surfaceScalarField Cof
    (
        "Cof",
        runTime.deltaT()*
        (
            mag(Unf)/hQGDf
        )
    );
    
    CoNum = max(Cof).value();
    
    Info << "Courant Number = " << CoNum << endl;
}



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