centralCourantNo.H

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Global
    centralCourantNo
 
Description
    Calculates the mean and maximum wave speed based Courant Numbers.
 
\*---------------------------------------------------------------------------*/
 
if (mesh.nInternalFaces())
{
    scalarField sumAmaxSf(fvc::surfaceSum(amaxSf)().primitiveField());
 
    CoNum = 0.5*gMax(sumAmaxSf/mesh.V().field())*runTime.deltaTValue();
 
    meanCoNum =
        0.5*(gSum(sumAmaxSf)/gSum(mesh.V().field()))*runTime.deltaTValue();
}
 
Info<< "Mean and max Courant Numbers = "
    << meanCoNum << " " << CoNum << endl;
 
// ************************************************************************* //