thermocapillaryForce.C

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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();
 
    auto tfvm = tmp<fvVectorMatrix>::New(U, dimForce/dimArea*dimVolume);
 
    tfvm.ref() += alpha*fvc::grad(sigma);
 
    return tfvm;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace surfaceFilmModels
} // End namespace regionModels
} // End namespace Foam
 
// ************************************************************************* //