114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright held by original author
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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\*---------------------------------------------------------------------------*/
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#include "JohnsonJacksonFrictionalStress.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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defineTypeNameAndDebug(JohnsonJacksonFrictionalStress, 0);
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addToRunTimeSelectionTable
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(
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frictionalStressModel,
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JohnsonJacksonFrictionalStress,
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dictionary
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);
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::JohnsonJacksonFrictionalStress::JohnsonJacksonFrictionalStress
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(
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const dictionary& dict
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)
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:
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frictionalStressModel(dict)
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{}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::JohnsonJacksonFrictionalStress::~JohnsonJacksonFrictionalStress()
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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Foam::tmp<Foam::volScalarField> Foam::JohnsonJacksonFrictionalStress::
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frictionalPressure
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(
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const volScalarField& alpha,
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const dimensionedScalar& alphaMinFriction,
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const dimensionedScalar& alphaMax,
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const dimensionedScalar& Fr,
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const dimensionedScalar& eta,
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const dimensionedScalar& p
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) const
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{
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return
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Fr*pow(max(alpha - alphaMinFriction, scalar(0)), eta)
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/pow(max(alphaMax - alpha, scalar(5.0e-2)), p);
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}
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Foam::tmp<Foam::volScalarField> Foam::JohnsonJacksonFrictionalStress::
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frictionalPressurePrime
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(
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const volScalarField& alpha,
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const dimensionedScalar& alphaMinFriction,
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const dimensionedScalar& alphaMax,
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const dimensionedScalar& Fr,
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const dimensionedScalar& eta,
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const dimensionedScalar& p
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) const
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{
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return Fr*
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(
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eta*pow(max(alpha - alphaMinFriction, scalar(0)), eta - 1.0)
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*(alphaMax-alpha) + p*pow(max(alpha - alphaMinFriction, scalar(0)), eta)
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)/pow(max(alphaMax - alpha, scalar(5.0e-2)), p + 1.0);
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}
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Foam::tmp<Foam::volScalarField> Foam::JohnsonJacksonFrictionalStress::muf
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(
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const volScalarField& alpha,
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const dimensionedScalar& alphaMax,
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const volScalarField& pf,
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const volTensorField& D,
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const dimensionedScalar& phi
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) const
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{
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return dimensionedScalar("0.5", dimTime, 0.5)*pf*sin(phi);
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}
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// ************************************************************************* //
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