113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration |
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\\ / A nd | For copyright notice see file Copyright
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend 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 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License 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 foam-extend. If not, see <http://www.gnu.org/licenses/>.
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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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