compressibleCourantNo.C

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#include "compressibleCourantNo.H"
#include "fvc.H"

Foam::scalar Foam::compressibleCourantNo
(
    const fvMesh& mesh,
    const Time& runTime,
    const volScalarField& rho,
    const surfaceScalarField& phi
)
{
    scalarField sumPhi
    (
        fvc::surfaceSum(mag(phi))().primitiveField()
      / rho.primitiveField()
    );

    scalar CoNum = 0.5*gMax(sumPhi/mesh.V().field())*runTime.deltaTValue();

    scalar meanCoNum =
        0.5*(gSum(sumPhi)/gSum(mesh.V().field()))*runTime.deltaTValue();

    Info<< "Region: " << mesh.name() << " Courant Number mean: " << meanCoNum
        << " max: " << CoNum << endl;

    return CoNum;
}


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