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src
turbulenceModels
incompressible
LES
oneEqEddy
oneEqEddy.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 "
oneEqEddy.H
"
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#include <
OpenFOAM/addToRunTimeSelectionTable.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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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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defineTypeNameAndDebug
(oneEqEddy, 0);
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addToRunTimeSelectionTable
(LESModel, oneEqEddy, dictionary);
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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void
oneEqEddy::updateSubGridScaleFields()
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{
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nuSgs_
= ck_*
sqrt
(k_)*
delta
();
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nuSgs_
.
correctBoundaryConditions
();
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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oneEqEddy::oneEqEddy
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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(typeName, U, phi, transport),
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GenEddyVisc
(U, phi, transport),
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k_
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(
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IOobject
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(
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"k"
,
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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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ck_
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(
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dimensioned<scalar>::lookupOrAddToDict
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(
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"ck"
,
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coeffDict_,
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0.094
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)
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)
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{
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updateSubGridScaleFields();
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printCoeffs();
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void
oneEqEddy::correct
(
const
tmp<volTensorField>
& gradU)
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{
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GenEddyVisc::correct
(gradU);
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volScalarField
G = 2.0*
nuSgs_
*
magSqr
(
symm
(gradU));
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fvScalarMatrix
kEqn
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(
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fvm::ddt
(k_)
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+
fvm::div
(
phi
(), k_)
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-
fvm::laplacian
(
DkEff
(), k_)
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==
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G
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-
fvm::Sp
(
ce_
*
sqrt
(k_)/
delta
(), k_)
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);
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kEqn.
relax
();
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kEqn.
solve
();
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bound
(k_,
k0
());
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updateSubGridScaleFields();
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}
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bool
oneEqEddy::read
()
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{
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if
(
GenEddyVisc::read
())
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{
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ck_.
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: ************************ //