thermocapillaryForce.C

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2017 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

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#include "thermocapillaryForce.H"
#include "addToRunTimeSelectionTable.H"
#include "fvcGrad.H"

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

namespace Foam
{
namespace regionModels
{
namespace surfaceFilmModels
{

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

defineTypeNameAndDebug(thermocapillaryForce, 0);
addToRunTimeSelectionTable(force, thermocapillaryForce, dictionary);

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

thermocapillaryForce::thermocapillaryForce
(
    surfaceFilmRegionModel& film,
    const dictionary& dict
)
:
    force(film)
{}


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

thermocapillaryForce::~thermocapillaryForce()
{}


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

tmp<fvVectorMatrix> thermocapillaryForce::correct(volVectorField& U)
{
    const volScalarField& alpha = filmModel_.alpha();
    const volScalarField& sigma = filmModel_.sigma();

    tmp<fvVectorMatrix>
        tfvm(new fvVectorMatrix(U, dimForce/dimArea*dimVolume));

    tfvm.ref() += alpha*fvc::grad(sigma);

    return tfvm;
}


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

} // End namespace surfaceFilmModels
} // End namespace regionModels
} // End namespace Foam

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