PecletNo.C

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    Copyright (C) 2013-2016 OpenFOAM Foundation
    Copyright (C) 2015-2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
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    the Free Software Foundation, either version 3 of the License, or
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
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#include "PecletNo.H"
#include "turbulenceModel.H"
#include "surfaceInterpolate.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace functionObjects
{
    defineTypeNameAndDebug(PecletNo, 0);
    addToRunTimeSelectionTable(functionObject, PecletNo, dictionary);
}
}
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
Foam::tmp<Foam::surfaceScalarField> Foam::functionObjects::PecletNo::rhoScale
(
    const surfaceScalarField& phi
) const
{
    if (phi.dimensions() == dimMass/dimTime)
    {
        return phi/fvc::interpolate(lookupObject<volScalarField>(rhoName_));
    }
 
    return phi;
}
 
 
bool Foam::functionObjects::PecletNo::calc()
{
    if (foundObject<surfaceScalarField>(fieldName_))
    {
        tmp<volScalarField> nuEff;
        if (mesh_.foundObject<turbulenceModel>(turbulenceModel::propertiesName))
        {
            const turbulenceModel& model =
                lookupObject<turbulenceModel>
                (
                    turbulenceModel::propertiesName
                );
 
            nuEff = model.nuEff();
        }
        else if (mesh_.foundObject<dictionary>("transportProperties"))
        {
            const dictionary& model =
                mesh_.lookupObject<dictionary>("transportProperties");
 
            nuEff = tmp<volScalarField>::New
            (
                IOobject
                (
                    "nuEff",
                    mesh_.time().timeName(),
                    mesh_,
                    IOobject::NO_READ,
                    IOobject::NO_WRITE
                ),
                mesh_,
                dimensionedScalar("nu", dimViscosity, model)
            );
        }
        else
        {
            FatalErrorInFunction
                << "Unable to determine the viscosity"
                << exit(FatalError);
        }
 
 
        const surfaceScalarField& phi =
            mesh_.lookupObject<surfaceScalarField>(fieldName_);
 
        return store
        (
            resultName_,
            mag(rhoScale(phi))
           /(
                mesh_.magSf()
               *mesh_.surfaceInterpolation::deltaCoeffs()
               *fvc::interpolate(nuEff)
            )
        );
    }
 
    return false;
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::functionObjects::PecletNo::PecletNo
(
    const word& name,
    const Time& runTime,
    const dictionary& dict
)
:
    fieldExpression(name, runTime, dict, "phi"),
    rhoName_("rho")
{
    setResultName("Pe", "phi");
    read(dict);
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
bool Foam::functionObjects::PecletNo::read(const dictionary& dict)
{
    rhoName_ = dict.getOrDefault<word>("rho", "rho");
 
    return true;
}
 
 
// ************************************************************************* //