CourantNo.H

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Global
    CourantNo
 
Description
    Calculates and outputs the maximum Courant Number.
 
\*---------------------------------------------------------------------------*/
 
{
    const scalarField sumPhi
    (
        fvc::surfaceSum(mag(phi))().primitiveField()
       /h.primitiveField()
    );
 
    const scalar CoNum =
        0.5*gMax(sumPhi/mesh.V().field())*runTime.deltaTValue();
 
    const scalar meanCoNum =
        0.5*(gSum(sumPhi)/gSum(mesh.V().field()))*runTime.deltaTValue();
 
    // Gravity wave Courant number
    const scalar waveCoNum = 0.25*gMax
    (
        fvc::surfaceSum
        (
            fvc::interpolate(sqrt(h))*mesh.magSf()
        )().primitiveField()/mesh.V().field()
    )*sqrt(magg).value()*runTime.deltaTValue();
 
    Info<< "Courant number mean: " << meanCoNum
        << " max: " << CoNum << endl;
 
    Info<< "Gravity wave Courant number max: " << waveCoNum
        << endl;
}
 
// ************************************************************************* //