/
cubeRootVolDelta.C
128 lines (102 loc) · 3.36 KB
/
cubeRootVolDelta.C
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2017 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "cubeRootVolDelta.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace LESModels
{
defineTypeNameAndDebug(cubeRootVolDelta, 0);
addToRunTimeSelectionTable(LESdelta, cubeRootVolDelta, dictionary);
}
}
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::LESModels::cubeRootVolDelta::calcDelta()
{
const fvMesh& mesh = turbulenceModel_.mesh();
label nD = mesh.nGeometricD();
if (nD == 3)
{
delta_.primitiveFieldRef() = deltaCoeff_*pow(mesh.V(), 1.0/3.0);
}
else if (nD == 2)
{
WarningInFunction
<< "Case is 2D, LES is not strictly applicable\n"
<< endl;
const Vector<label>& directions = mesh.geometricD();
scalar thickness = 0.0;
for (direction dir=0; dir<directions.nComponents; dir++)
{
if (directions[dir] == -1)
{
thickness = mesh.bounds().span()[dir];
break;
}
}
delta_.primitiveFieldRef() = deltaCoeff_*sqrt(mesh.V()/thickness);
}
else
{
FatalErrorInFunction
<< "Case is not 3D or 2D, LES is not applicable"
<< exit(FatalError);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::LESModels::cubeRootVolDelta::cubeRootVolDelta
(
const word& name,
const turbulenceModel& turbulence,
const dictionary& dict
)
:
LESdelta(name, turbulence),
deltaCoeff_
(
dict.optionalSubDict(type() + "Coeffs").lookupOrDefault<scalar>
(
"deltaCoeff",
1
)
)
{
calcDelta();
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::LESModels::cubeRootVolDelta::read(const dictionary& dict)
{
dict.optionalSubDict(type() + "Coeffs").readIfPresent<scalar>
(
"deltaCoeff",
deltaCoeff_
);
calcDelta();
}
void Foam::LESModels::cubeRootVolDelta::correct()
{
if (turbulenceModel_.mesh().changing())
{
calcDelta();
}
}
// ************************************************************************* //