MachNo.C

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#include "MachNo.H"
#include "fluidThermo.H"
#include "addToRunTimeSelectionTable.H"

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

namespace Foam
{
namespace functionObjects
{
    defineTypeNameAndDebug(MachNo, 0);

    addToRunTimeSelectionTable
    (
        functionObject,
        MachNo,
        dictionary
    );
}
}


// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //

bool Foam::functionObjects::MachNo::calc()
{
    if
    (
        foundObject<volVectorField>(fieldName_)
     && mesh_.foundObject<fluidThermo>(fluidThermo::dictName)
    )
    {
        const fluidThermo& thermo =
            mesh_.lookupObject<fluidThermo>(fluidThermo::dictName);

        const volVectorField& U = lookupObject<volVectorField>(fieldName_);

        return store
        (
            resultName_,
            mag(U)/sqrt(thermo.gamma()*thermo.p()/thermo.rho())
        );
    }
    else
    {
        return false;
    }
}


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::functionObjects::MachNo::MachNo
(
    const word& name,
    const Time& runTime,
    const dictionary& dict
)
:
    fieldExpression(name, runTime, dict, "U")
{
    setResultName("Ma", "U");
}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::functionObjects::MachNo::~MachNo()
{}


// ************************************************************************* //