randomiseTemplates.C

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#include "volFields.H"
#include "Random.H"

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

template<class Type>
bool Foam::functionObjects::randomise::calcRandomised()
{
    typedef GeometricField<Type, fvPatchField, volMesh> VolFieldType;

    if (foundObject<VolFieldType>(fieldName_))
    {
        const VolFieldType& field = lookupObject<VolFieldType>(fieldName_);

        tmp<VolFieldType> rfieldt(new VolFieldType(field));
        VolFieldType& rfield = rfieldt.ref();

        Random rand(1234567);

        forAll(field, celli)
        {
            Type rndPert = rand.sample01<Type>();
            rndPert = 2.0*rndPert - pTraits<Type>::one;
            rndPert /= mag(rndPert);
            rfield[celli] += magPerturbation_*rndPert;
        }

        return store(resultName_, rfieldt);
    }
    else
    {
        return false;
    }
}


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