ArdenBuck.C

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    Copyright (C) 2015-2018 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "ArdenBuck.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace saturationModels
{
    defineTypeNameAndDebug(ArdenBuck, 0);
    addToRunTimeSelectionTable(saturationModel, ArdenBuck, dictionary);
}
}
 
static const Foam::dimensionedScalar zeroC("", Foam::dimTemperature, 273.15);
static const Foam::dimensionedScalar A("", Foam::dimPressure, 611.21);
static const Foam::dimensionedScalar B("", Foam::dimless, 18.678);
static const Foam::dimensionedScalar C("", Foam::dimTemperature, 234.5);
static const Foam::dimensionedScalar D("", Foam::dimTemperature, 257.14);
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
Foam::tmp<Foam::volScalarField>
Foam::saturationModels::ArdenBuck::xByTC
(
    const volScalarField& TC
) const
{
    return (B - TC/C)/(D + TC);
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::saturationModels::ArdenBuck::ArdenBuck
(
    const dictionary& dict,
    const objectRegistry& db
)
:
    saturationModel(db)
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::saturationModels::ArdenBuck::~ArdenBuck()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::volScalarField>
Foam::saturationModels::ArdenBuck::pSat
(
    const volScalarField& T
) const
{
    volScalarField TC(T - zeroC);
 
    return A*exp(TC*xByTC(TC));
}
 
 
Foam::tmp<Foam::volScalarField>
Foam::saturationModels::ArdenBuck::pSatPrime
(
    const volScalarField& T
) const
{
    volScalarField TC(T - zeroC);
 
    volScalarField x(xByTC(TC));
 
    return A*exp(TC*x)*(D*x - TC/C)/(D + TC);
}
 
 
Foam::tmp<Foam::volScalarField>
Foam::saturationModels::ArdenBuck::lnPSat
(
    const volScalarField& T
) const
{
    volScalarField TC(T - zeroC);
 
    return log(A.value()) + TC*xByTC(TC);
}
 
 
Foam::tmp<Foam::volScalarField>
Foam::saturationModels::ArdenBuck::Tsat
(
    const volScalarField& p
) const
{
    NotImplemented;
 
    return volScalarField::null();
}
 
 
// ************************************************************************* //