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src
turbulenceModels
incompressible
LES
GenEddyVisc
GenEddyVisc.C
Go to the documentation of this file.
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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 |
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\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
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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 <
incompressibleLESModels/GenEddyVisc.H
>
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace
Foam
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{
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namespace
incompressible
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{
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namespace
LESModels
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{
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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GenEddyVisc::GenEddyVisc
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(
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const
volVectorField
&
U
,
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const
surfaceScalarField
&
phi
,
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transportModel
& transport
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)
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:
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LESModel(
word
(
"GenEddyVisc"
), U, phi, transport),
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ce_
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(
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dimensioned<scalar>::lookupOrAddToDict
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(
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"ce"
,
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coeffDict_,
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1.048
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)
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),
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nuSgs_
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(
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IOobject
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(
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"nuSgs"
,
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runTime_.timeName(),
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mesh_,
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IOobject::MUST_READ
,
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IOobject::AUTO_WRITE
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),
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mesh_
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)
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{
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// printCoeffs();
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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tmp<volSymmTensorField>
GenEddyVisc::B
()
const
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{
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return
((2.0/3.0)*
I
)*
k
() -
nuSgs_
*
twoSymm
(
fvc::grad
(
U
()));
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}
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tmp<volSymmTensorField>
GenEddyVisc::devBeff
()
const
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{
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return
-
nuEff
()*
dev
(
twoSymm
(
fvc::grad
(
U
())));
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}
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tmp<fvVectorMatrix>
GenEddyVisc::divDevBeff
(
volVectorField
& U)
const
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{
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return
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(
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-
fvm::laplacian
(
nuEff
(), U) -
fvc::div
(
nuEff
()*
dev
(
fvc::grad
(U)().
T
()))
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);
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}
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void
GenEddyVisc::correct
(
const
tmp<volTensorField>
& gradU)
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{
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LESModel::correct
(gradU);
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}
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bool
GenEddyVisc::read
()
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{
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if
(LESModel::read())
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{
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ce_
.
readIfPresent
(
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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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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}
// End namespace LESModels
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}
// End namespace incompressible
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}
// End namespace Foam
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// ************************ vim: set sw=4 sts=4 et: ************************ //