constantRadiation.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2012-2013 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    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
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
\*---------------------------------------------------------------------------*/
 
#include "constantRadiation.H"
#include "volFields.H"
#include "zeroGradientFvPatchFields.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace regionModels
{
namespace surfaceFilmModels
{
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
defineTypeNameAndDebug(constantRadiation, 0);
 
addToRunTimeSelectionTable
(
    filmRadiationModel,
    constantRadiation,
    dictionary
);
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
constantRadiation::constantRadiation
(
    surfaceFilmModel& owner,
    const dictionary& dict
)
:
    filmRadiationModel(typeName, owner, dict),
    QrConst_
    (
        IOobject
        (
            typeName + ":QrConst",
            owner.time().timeName(),
            owner.regionMesh(),
            IOobject::MUST_READ,
            IOobject::AUTO_WRITE
        ),
        owner.regionMesh()
    ),
    mask_
    (
        IOobject
        (
            typeName + ":mask",
            owner.time().timeName(),
            owner.regionMesh(),
            IOobject::READ_IF_PRESENT,
            IOobject::AUTO_WRITE
        ),
        owner.regionMesh(),
        dimensionedScalar("one", dimless, 1.0)
    ),
    absorptivity_(readScalar(coeffDict_.lookup("absorptivity"))),
    timeStart_(readScalar(coeffDict_.lookup("timeStart"))),
    duration_(readScalar(coeffDict_.lookup("duration")))
{
    mask_ = pos(mask_);
}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
constantRadiation::~constantRadiation()
{}
 
 
// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
void constantRadiation::correct()
{}
 
 
tmp<volScalarField> constantRadiation::Shs()
{
    tmp<volScalarField> tShs
    (
        new volScalarField
        (
            IOobject
            (
                typeName + ":Shs",
                owner().time().timeName(),
                owner().regionMesh(),
                IOobject::NO_READ,
                IOobject::NO_WRITE
            ),
            owner().regionMesh(),
            dimensionedScalar("zero", dimMass/pow3(dimTime), 0.0),
            zeroGradientFvPatchScalarField::typeName
        )
    );
 
    const scalar time = owner().time().value();
 
    if ((time >= timeStart_) && (time <= timeStart_ + duration_))
    {
        scalarField& Shs = tShs();
        const scalarField& Qr = QrConst_.internalField();
        const scalarField& alpha = owner_.alpha().internalField();
 
        Shs = mask_*Qr*alpha*absorptivity_;
    }
 
    return tShs;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace surfaceFilmModels
} // End namespace regionModels
} // End namespace Foam
 
// ************************************************************************* //