de66b1be68
providing the shear-stress term in the momentum equation for incompressible and compressible Newtonian, non-Newtonian and visco-elastic laminar flow as well as Reynolds averaged and large-eddy simulation of turbulent flow. The general deviatoric shear-stress term provided by the MomentumTransportModels library is named divDevTau for compressible flow and divDevSigma (sigma = tau/rho) for incompressible flow, the spherical part of the shear-stress is assumed to be either included in the pressure or handled separately. The corresponding stress function sigma is also provided which in the case of Reynolds stress closure returns the effective Reynolds stress (including the laminar contribution) or for other Reynolds averaged or large-eddy turbulence closures returns the modelled Reynolds stress or sub-grid stress respectively. For visco-elastic flow the sigma function returns the effective total stress including the visco-elastic and Newtonian contributions. For thermal flow the heat-flux generated by thermal diffusion is now handled by the separate ThermophysicalTransportModels library allowing independent run-time selection of the heat-flux model. During the development of the MomentumTransportModels library significant effort has been put into rationalising the components and supporting libraries, removing redundant code, updating names to provide a more logical, consistent and extensible interface and aid further development and maintenance. All solvers and tutorials have been updated correspondingly and backward compatibility of the input dictionaries provided. Henry G. Weller CFD Direct Ltd.
156 lines
4.4 KiB
C++
156 lines
4.4 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2011-2020 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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Class
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Foam::interfaceProperties
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Description
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Contains the interface properties.
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Properties to aid interFoam:
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-# Correct the alpha boundary condition for dynamic contact angle.
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-# Calculate interface curvature.
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SourceFiles
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interfaceProperties.C
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\*---------------------------------------------------------------------------*/
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#ifndef interfaceProperties_H
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#define interfaceProperties_H
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#include "IOdictionary.H"
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#include "surfaceTensionModel.H"
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#include "volFields.H"
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#include "surfaceFields.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class interfaceProperties Declaration
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\*---------------------------------------------------------------------------*/
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class interfaceProperties
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{
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// Private Data
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//- Keep a reference to the transportProperties dictionary
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const dictionary& transportPropertiesDict_;
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//- Compression coefficient
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scalar cAlpha_;
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//- Surface tension
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autoPtr<surfaceTensionModel> sigmaPtr_;
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//- Stabilisation for normalisation of the interface normal
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const dimensionedScalar deltaN_;
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const volScalarField& alpha1_;
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const volVectorField& U_;
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surfaceScalarField nHatf_;
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volScalarField K_;
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// Private Member Functions
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//- Correction for the boundary condition on the unit normal nHat on
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// walls to produce the correct contact dynamic angle
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// calculated from the component of U parallel to the wall
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void correctContactAngle
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(
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surfaceVectorField::Boundary& nHat,
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const surfaceVectorField::Boundary& gradAlphaf
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) const;
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//- Re-calculate the interface curvature
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void calculateK();
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public:
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// Constructors
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//- Construct from volume fraction field gamma and IOdictionary
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interfaceProperties
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(
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const volScalarField& alpha1,
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const volVectorField& U,
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const IOdictionary&
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);
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//- Disallow default bitwise copy construction
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interfaceProperties(const interfaceProperties&) = delete;
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// Member Functions
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scalar cAlpha() const
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{
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return cAlpha_;
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}
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const dimensionedScalar& deltaN() const
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{
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return deltaN_;
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}
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const surfaceScalarField& nHatf() const
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{
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return nHatf_;
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}
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tmp<volScalarField> sigmaK() const;
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tmp<surfaceScalarField> surfaceTensionForce() const;
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//- Indicator of the proximity of the interface
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// Field values are 1 near and 0 away for the interface.
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tmp<volScalarField> nearInterface() const;
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void correct();
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//- Read transportProperties dictionary
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bool read();
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// Member Operators
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//- Disallow default bitwise assignment
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void operator=(const interfaceProperties&) = delete;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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