turbulenceModels/laminar/Giesekus: Giesekus model for visco-elasticity
Implementation of the Giesekus model for visco-elasticity, derived from the new
generalised form of the Maxwell model which now support additional sources.
Giesekus, H., 1982.
A simple constitutive equation for polymer fluids based on the
concept of deformation-dependent tensional mobility.
J. Non-Newton. Fluid. 11, 69–109.
This implementation is instantiated for incompressible, compressible and VoF
two-phase flow.
This commit is contained in:
@ -2,7 +2,7 @@
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2017-2018 OpenFOAM Foundation
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\\ / A nd | Copyright (C) 2017-2019 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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@ -75,6 +75,9 @@ makeLaminarModel(Stokes);
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#include "Maxwell.H"
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makeLaminarModel(Maxwell);
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#include "Giesekus.H"
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makeLaminarModel(Giesekus);
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#include "kEpsilon.H"
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makeRASModel(kEpsilon);
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@ -2,7 +2,7 @@
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2013-2018 OpenFOAM Foundation
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\\ / A nd | Copyright (C) 2013-2019 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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@ -51,6 +51,9 @@ makeLaminarModel(generalizedNewtonian);
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#include "Maxwell.H"
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makeLaminarModel(Maxwell);
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#include "Giesekus.H"
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makeLaminarModel(Giesekus);
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// -------------------------------------------------------------------------- //
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// RAS models
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@ -2,7 +2,7 @@
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2013-2018 OpenFOAM Foundation
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\\ / A nd | Copyright (C) 2013-2019 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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@ -50,6 +50,9 @@ makeLaminarModel(generalizedNewtonian);
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#include "Maxwell.H"
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makeLaminarModel(Maxwell);
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#include "Giesekus.H"
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makeLaminarModel(Giesekus);
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// -------------------------------------------------------------------------- //
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// RAS models
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@ -0,0 +1,107 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2019 OpenFOAM Foundation
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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
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the Free Software Foundation, either version 3 of the License, or
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(at your 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, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "Giesekus.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace laminarModels
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{
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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template<class BasicTurbulenceModel>
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Giesekus<BasicTurbulenceModel>::Giesekus
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(
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const alphaField& alpha,
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const rhoField& rho,
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const volVectorField& U,
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const surfaceScalarField& alphaRhoPhi,
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const surfaceScalarField& phi,
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const transportModel& transport,
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const word& propertiesName,
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const word& type
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)
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:
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Maxwell<BasicTurbulenceModel>
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(
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alpha,
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rho,
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U,
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alphaRhoPhi,
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phi,
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transport,
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propertiesName,
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type
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),
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alphaG_("alphaG", dimless, this->coeffDict_)
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{
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if (type == typeName)
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{
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this->printCoeffs(type);
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}
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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template<class BasicTurbulenceModel>
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bool Giesekus<BasicTurbulenceModel>::read()
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{
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if (Maxwell<BasicTurbulenceModel>::read())
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{
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alphaG_.read(this->coeffDict());
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return true;
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}
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else
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{
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return false;
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}
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}
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template<class BasicTurbulenceModel>
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tmp<fvSymmTensorMatrix>
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Giesekus<BasicTurbulenceModel>::sigmaSource() const
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{
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return fvm::Su
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(
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this->alpha_*this->rho_
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*alphaG_*innerSqr(this->sigma_)/this->nuM_, this->sigma_
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);
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace laminarModels
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} // End namespace Foam
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// ************************************************************************* //
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@ -0,0 +1,141 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2019 OpenFOAM Foundation
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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
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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||||
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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, see <http://www.gnu.org/licenses/>.
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Class
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Foam::laminarModels::Giesekus
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Description
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Giesekus model for viscoelasticity.
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Reference:
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\verbatim
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Giesekus, H., 1982.
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A simple constitutive equation for polymer fluids based on the
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concept of deformation-dependent tensional mobility.
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J. Non-Newton. Fluid. 11, 69–109.
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\endverbatim
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See also
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Foam::laminarModels::Maxwell
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SourceFiles
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Giesekus.C
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\*---------------------------------------------------------------------------*/
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#ifndef Giesekus_H
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#define Giesekus_H
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#include "Maxwell.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace laminarModels
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{
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/*---------------------------------------------------------------------------*\
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Class Giesekus Declaration
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\*---------------------------------------------------------------------------*/
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template<class BasicTurbulenceModel>
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class Giesekus
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:
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public Maxwell<BasicTurbulenceModel>
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{
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// Private Member Functions
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// Disallow default bitwise copy construct and assignment
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Giesekus(const Giesekus&);
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void operator=(const Giesekus&);
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protected:
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// Protected data
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// Model coefficients
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dimensionedScalar alphaG_;
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// Protected Member Functions
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virtual tmp<fvSymmTensorMatrix> sigmaSource() const;
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public:
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typedef typename BasicTurbulenceModel::alphaField alphaField;
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typedef typename BasicTurbulenceModel::rhoField rhoField;
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typedef typename BasicTurbulenceModel::transportModel transportModel;
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//- Runtime type information
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TypeName("Giesekus");
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// Constructors
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//- Construct from components
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Giesekus
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(
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const alphaField& alpha,
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const rhoField& rho,
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const volVectorField& U,
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const surfaceScalarField& alphaRhoPhi,
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const surfaceScalarField& phi,
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const transportModel& transport,
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const word& propertiesName = turbulenceModel::propertiesName,
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const word& type = typeName
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);
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//- Destructor
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virtual ~Giesekus()
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{}
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// Member Functions
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//- Re-read model coefficients if they have changed
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virtual bool read();
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace laminarModels
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#ifdef NoRepository
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#include "Giesekus.C"
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#endif
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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@ -2,7 +2,7 @@
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2016-2018 OpenFOAM Foundation
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\\ / A nd | Copyright (C) 2016-2019 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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@ -34,6 +34,22 @@ namespace Foam
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namespace laminarModels
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{
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// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
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template<class BasicTurbulenceModel>
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tmp<fvSymmTensorMatrix> Maxwell<BasicTurbulenceModel>::sigmaSource() const
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{
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return tmp<fvSymmTensorMatrix>
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(
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new fvSymmTensorMatrix
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(
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sigma_,
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dimVolume*this->rho_.dimensions()*sigma_.dimensions()/dimTime
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)
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);
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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template<class BasicTurbulenceModel>
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@ -223,6 +239,7 @@ void Maxwell<BasicTurbulenceModel>::correct()
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+ fvm::Sp(alpha*rho*rLambda, sigma)
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==
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alpha*rho*P
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+ sigmaSource()
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+ fvOptions(alpha, rho, sigma)
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);
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@ -2,7 +2,7 @@
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2016-2018 OpenFOAM Foundation
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\\ / A nd | Copyright (C) 2016-2019 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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@ -93,6 +93,8 @@ protected:
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return this->nu() + nuM_;
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}
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virtual tmp<fvSymmTensorMatrix> sigmaSource() const;
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public:
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@ -18,7 +18,7 @@ simulationType laminar;
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laminar
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{
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laminarModel Maxwell;
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laminarModel Maxwell; // Giesekus;
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MaxwellCoeffs
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{
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@ -26,6 +26,13 @@ laminar
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lambda 0.03;
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}
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GiesekusCoeffs
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{
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nuM 0.002;
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lambda 0.03;
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alphaG 0.1;
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}
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printCoeffs on;
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}
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@ -16,7 +16,7 @@ FoamFile
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application pimpleFoam;
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startFrom latestTime;
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startFrom startTime;
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startTime 0;
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@ -19,10 +19,13 @@ simulationType laminar;
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laminar
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{
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laminarModel Maxwell;
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laminarModel Maxwell; // Giesekus;
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nuM 0.01476;
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lambda 0.018225;
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// Giesekus coefficient
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alphaG 0.1;
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}
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