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https://github.com/OpenFOAM/OpenFOAM-6.git
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5e6a7ea282
Avoids the clutter and maintenance effort associated with providing the function signature string.
125 lines
3.3 KiB
C
125 lines
3.3 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 (C) 2011-2015 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 "cubeRootVolDelta.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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namespace LESModels
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{
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defineTypeNameAndDebug(cubeRootVolDelta, 0);
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addToRunTimeSelectionTable(LESdelta, cubeRootVolDelta, dictionary);
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}
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}
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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void Foam::LESModels::cubeRootVolDelta::calcDelta()
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{
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const fvMesh& mesh = turbulenceModel_.mesh();
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label nD = mesh.nGeometricD();
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if (nD == 3)
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{
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delta_.internalField() = deltaCoeff_*pow(mesh.V(), 1.0/3.0);
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}
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else if (nD == 2)
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{
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WarningInFunction
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<< "Case is 2D, LES is not strictly applicable\n"
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<< endl;
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const Vector<label>& directions = mesh.geometricD();
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scalar thickness = 0.0;
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for (direction dir=0; dir<directions.nComponents; dir++)
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{
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if (directions[dir] == -1)
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{
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thickness = mesh.bounds().span()[dir];
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break;
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}
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}
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delta_.internalField() = deltaCoeff_*sqrt(mesh.V()/thickness);
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}
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else
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{
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FatalErrorInFunction
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<< "Case is not 3D or 2D, LES is not applicable"
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<< exit(FatalError);
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}
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::LESModels::cubeRootVolDelta::cubeRootVolDelta
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(
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const word& name,
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const turbulenceModel& turbulence,
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const dictionary& dict
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)
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:
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LESdelta(name, turbulence),
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deltaCoeff_
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(
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dict.subDict(type() + "Coeffs").lookupOrDefault<scalar>("deltaCoeff", 1)
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)
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{
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calcDelta();
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void Foam::LESModels::cubeRootVolDelta::read(const dictionary& dict)
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{
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dict.subDict(type() + "Coeffs").readIfPresent<scalar>
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(
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"deltaCoeff",
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deltaCoeff_
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);
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calcDelta();
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}
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void Foam::LESModels::cubeRootVolDelta::correct()
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{
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if (turbulenceModel_.mesh().changing())
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{
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calcDelta();
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}
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}
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// ************************************************************************* //
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