QGDCourantNo.H

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Global
    QGDCourantNo

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",
        max(mag(Unf + cf), mag(Unf - cf)) * runTime.deltaT() / hQGDf
    );

    CoNum = max(Cof).value();

    Info << "Courant Number = " << CoNum << endl;
}



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