Additional wall functions: k/epsilonNonEqWallFunctions
Non-equilibrium wall functions for k and epsilon. Author: Filip Sutalo, Merge: Vuko Vukcevic
This commit is contained in:
Vuko Vukcevic
Hrvoje Jasak
parent
3f9271f2be
commit
4b182a13ec
5 changed files with 949 additions and 0 deletions
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@ -37,6 +37,7 @@ $(nutWallFunctions)/nutMEWTWallFunction/nutMEWTWallFunctionFvPatchScalarField.C
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epsilonWallFunctions = $(wallFunctions)/epsilonWallFunctions
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epsilonWallFunctions = $(wallFunctions)/epsilonWallFunctions
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$(epsilonWallFunctions)/epsilonWallFunction/epsilonWallFunctionFvPatchScalarField.C
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$(epsilonWallFunctions)/epsilonWallFunction/epsilonWallFunctionFvPatchScalarField.C
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$(epsilonWallFunctions)/epsilonNonEqWallFunction/epsilonNonEqWallFunctionFvPatchScalarField.C
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omegaWallFunctions = $(wallFunctions)/omegaWallFunctions
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omegaWallFunctions = $(wallFunctions)/omegaWallFunctions
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$(omegaWallFunctions)/omegaWallFunction/omegaWallFunctionFvPatchScalarField.C
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$(omegaWallFunctions)/omegaWallFunction/omegaWallFunctionFvPatchScalarField.C
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@ -45,6 +46,7 @@ $(omegaWallFunctions)/omegaMEWTWallFunction/omegaMEWTWallFunctionFvPatchScalarFi
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kqRWallFunctions = $(wallFunctions)/kqRWallFunctions
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kqRWallFunctions = $(wallFunctions)/kqRWallFunctions
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$(kqRWallFunctions)/kqRWallFunction/kqRWallFunctionFvPatchFields.C
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$(kqRWallFunctions)/kqRWallFunction/kqRWallFunctionFvPatchFields.C
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$(kqRWallFunctions)/kNonEqWallFunction/kNonEqWallFunctionFvPatchScalarField.C
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RWallFunctions = $(wallFunctions)/RWallFunctions
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RWallFunctions = $(wallFunctions)/RWallFunctions
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$(RWallFunctions)/RWallFunction/RWallFunctionFvPatchSymmTensorField.C
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$(RWallFunctions)/RWallFunction/RWallFunctionFvPatchSymmTensorField.C
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@ -0,0 +1,245 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 4.0
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend 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 the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License 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 foam-extend. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "epsilonNonEqWallFunctionFvPatchScalarField.H"
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#include "RASModel.H"
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#include "fvPatchFieldMapper.H"
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#include "volFields.H"
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#include "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 RASModels
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{
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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void epsilonNonEqWallFunctionFvPatchScalarField::checkType()
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{
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if (!this->patch().isWall())
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{
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FatalErrorIn("epsilonNonEqWallFunctionFvPatchScalarField::checkType()")
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<< "Invalid wall function specification" << nl
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<< " Patch type for patch " << patch().name()
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<< " must be wall" << nl
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<< " Current patch type is " << patch().type() << nl << endl
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<< abort(FatalError);
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}
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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epsilonNonEqWallFunctionFvPatchScalarField::
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epsilonNonEqWallFunctionFvPatchScalarField
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(
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const fvPatch& p,
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const DimensionedField<scalar, volMesh>& iF
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)
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:
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fixedInternalValueFvPatchScalarField(p, iF),
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UName_("U"),
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kName_("k"),
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nuName_("nu"),
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nutName_("nut"),
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Cmu_(0.09),
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kappa_(0.41)
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{
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checkType();
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}
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epsilonNonEqWallFunctionFvPatchScalarField::
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epsilonNonEqWallFunctionFvPatchScalarField
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(
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const epsilonNonEqWallFunctionFvPatchScalarField& ptf,
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const fvPatch& p,
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const DimensionedField<scalar, volMesh>& iF,
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const fvPatchFieldMapper& mapper
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)
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:
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fixedInternalValueFvPatchScalarField(ptf, p, iF, mapper),
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UName_(ptf.UName_),
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kName_(ptf.kName_),
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nuName_(ptf.nuName_),
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nutName_(ptf.nutName_),
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Cmu_(ptf.Cmu_),
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kappa_(ptf.kappa_)
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{
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checkType();
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}
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epsilonNonEqWallFunctionFvPatchScalarField::
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epsilonNonEqWallFunctionFvPatchScalarField
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(
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const fvPatch& p,
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const DimensionedField<scalar, volMesh>& iF,
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const dictionary& dict
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)
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:
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fixedInternalValueFvPatchScalarField(p, iF, dict),
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UName_(dict.lookupOrDefault<word>("U", "U")),
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kName_(dict.lookupOrDefault<word>("k", "k")),
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nuName_(dict.lookupOrDefault<word>("nu", "nu")),
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nutName_(dict.lookupOrDefault<word>("nut", "nut")),
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Cmu_(dict.lookupOrDefault<scalar>("Cmu", 0.09)),
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kappa_(dict.lookupOrDefault<scalar>("kappa", 0.41))
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{
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checkType();
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}
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epsilonNonEqWallFunctionFvPatchScalarField::
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epsilonNonEqWallFunctionFvPatchScalarField
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(
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const epsilonNonEqWallFunctionFvPatchScalarField& ewfpsf
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)
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:
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fixedInternalValueFvPatchScalarField(ewfpsf),
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UName_(ewfpsf.UName_),
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kName_(ewfpsf.kName_),
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nuName_(ewfpsf.nuName_),
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nutName_(ewfpsf.nutName_),
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Cmu_(ewfpsf.Cmu_),
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kappa_(ewfpsf.kappa_)
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{
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checkType();
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}
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epsilonNonEqWallFunctionFvPatchScalarField::
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epsilonNonEqWallFunctionFvPatchScalarField
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(
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const epsilonNonEqWallFunctionFvPatchScalarField& ewfpsf,
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const DimensionedField<scalar, volMesh>& iF
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)
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:
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fixedInternalValueFvPatchScalarField(ewfpsf, iF),
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UName_(ewfpsf.UName_),
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kName_(ewfpsf.kName_),
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nuName_(ewfpsf.nuName_),
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nutName_(ewfpsf.nutName_),
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Cmu_(ewfpsf.Cmu_),
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kappa_(ewfpsf.kappa_)
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{
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checkType();
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void epsilonNonEqWallFunctionFvPatchScalarField::updateCoeffs()
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{
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if (updated())
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{
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return;
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}
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const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
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const scalarField& y = rasModel.y()[patch().index()];
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const scalar Cmu25 = pow(Cmu_, 0.25);
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const scalar Cmu75 = pow(Cmu_, 0.75);
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// Epsilon is now a refValue (derived from fixedInternalValueFvPatchField)
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scalarField& epsilon = refValue();
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const volScalarField& k = db().lookupObject<volScalarField>(kName_);
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const scalarField& nuw =
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lookupPatchField<volScalarField, scalar>(nuName_);
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const scalarField& nutw =
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lookupPatchField<volScalarField, scalar>(nutName_);
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// Get face cells
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const unallocLabelList& fc = patch().faceCells();
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// Set epsilon
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forAll(nutw, faceI)
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{
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const label faceCellI = fc[faceI];
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// Viscous sublayer thickness
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const scalar yVis = nuw[faceI]*11.225/(Cmu25*sqrt(k[faceCellI]));
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if (y[faceI] > yVis)
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{
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epsilon[faceI] = Cmu75*pow(k[faceCellI], 1.5)/(kappa_*y[faceI]);
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}
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else
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{
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epsilon[faceI] = 2.0*nuw[faceI]*k[faceCellI]/sqr(y[faceI]);
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}
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}
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// TODO: perform averaging for cells sharing more than one boundary face
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fixedInternalValueFvPatchScalarField::updateCoeffs();
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}
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void epsilonNonEqWallFunctionFvPatchScalarField::evaluate
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(
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const Pstream::commsTypes commsType
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)
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{
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fixedInternalValueFvPatchScalarField::evaluate(commsType);
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}
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void epsilonNonEqWallFunctionFvPatchScalarField::write(Ostream& os) const
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{
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fixedInternalValueFvPatchScalarField::write(os);
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writeEntryIfDifferent<word>(os, "U", "U", UName_);
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writeEntryIfDifferent<word>(os, "k", "k", kName_);
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writeEntryIfDifferent<word>(os, "G", "RASModel::G", GName_);
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writeEntryIfDifferent<word>(os, "nu", "nu", nuName_);
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writeEntryIfDifferent<word>(os, "nut", "nut", nutName_);
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os.writeKeyword("Cmu") << Cmu_ << token::END_STATEMENT << nl;
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os.writeKeyword("kappa") << kappa_ << token::END_STATEMENT << nl;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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makePatchTypeField
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(
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fvPatchScalarField,
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epsilonNonEqWallFunctionFvPatchScalarField
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);
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace RASModels
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} // End namespace incompressible
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} // End namespace Foam
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// ************************************************************************* //
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@ -0,0 +1,207 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 4.0
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend 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 the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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|
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|
You should have received a copy of the GNU General Public License
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|
along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::incompressible::RASModels::epsilonNonEqWallFunctionFvPatchScalarField
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Description
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Boundary condition for epsilon when using wall functions
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- calculates epsilon and G
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- epsilon values added directly into the matrix to act as a constraint
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Takes into acount non-equilibrium effects
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Reference (bibtex entry):
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@article{sutaloThesis2017,
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author = {\v{S}utalo, F.}
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title = {{Evaluation of Variants of Enhanced Wall Treatment Wall
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Function in Turbulent Flow Simulations}},
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school = {Faculty of Mechanical Engineering and Naval Architecture,
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University of Zagreb},
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year = {2017},
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}
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Author
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Filip Sutalo, FMENA Zagreb. All rights reserved.
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SourceFiles
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epsilonNonEqWallFunctionFvPatchScalarField.C
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\*---------------------------------------------------------------------------*/
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#ifndef epsilonNonEqWallFunctionFvPatchScalarField_H
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#define epsilonNonEqWallFunctionFvPatchScalarField_H
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#include "fixedInternalValueFvPatchFields.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 RASModels
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{
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/*---------------------------------------------------------------------------*\
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Class epsilonNonEqWallFunctionFvPatchScalarField Declaration
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\*---------------------------------------------------------------------------*/
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class epsilonNonEqWallFunctionFvPatchScalarField
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:
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public fixedInternalValueFvPatchScalarField
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{
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// Private data
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//- Name of velocity field
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word UName_;
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//- Name of turbulence kinetic energy field
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word kName_;
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//- Name of turbulence generation field
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word GName_;
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//- Name of laminar viscosity field
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word nuName_;
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//- Name of turbulent viscosity field
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word nutName_;
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//- Cmu coefficient
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scalar Cmu_;
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//- Von Karman constant
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scalar kappa_;
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//- E coefficient
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scalar E_;
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// Private member functions
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//- Check the type of the patch
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void checkType();
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public:
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//- Runtime type information
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TypeName("epsilonNonEqWallFunction");
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// Constructors
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//- Construct from patch and internal field
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epsilonNonEqWallFunctionFvPatchScalarField
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(
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const fvPatch&,
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const DimensionedField<scalar, volMesh>&
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);
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//- Construct from patch, internal field and dictionary
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epsilonNonEqWallFunctionFvPatchScalarField
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(
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const fvPatch&,
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const DimensionedField<scalar, volMesh>&,
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const dictionary&
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);
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//- Construct by mapping given
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// epsilonNonEqWallFunctionFvPatchScalarField
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// onto a new patch
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epsilonNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const epsilonNonEqWallFunctionFvPatchScalarField&,
|
||||||
|
const fvPatch&,
|
||||||
|
const DimensionedField<scalar, volMesh>&,
|
||||||
|
const fvPatchFieldMapper&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct as copy
|
||||||
|
epsilonNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const epsilonNonEqWallFunctionFvPatchScalarField&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct and return a clone
|
||||||
|
virtual tmp<fvPatchScalarField> clone() const
|
||||||
|
{
|
||||||
|
return tmp<fvPatchScalarField>
|
||||||
|
(
|
||||||
|
new epsilonNonEqWallFunctionFvPatchScalarField(*this)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
//- Construct as copy setting internal field reference
|
||||||
|
epsilonNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const epsilonNonEqWallFunctionFvPatchScalarField&,
|
||||||
|
const DimensionedField<scalar, volMesh>&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct and return a clone setting internal field reference
|
||||||
|
virtual tmp<fvPatchScalarField> clone
|
||||||
|
(
|
||||||
|
const DimensionedField<scalar, volMesh>& iF
|
||||||
|
) const
|
||||||
|
{
|
||||||
|
return tmp<fvPatchScalarField>
|
||||||
|
(
|
||||||
|
new epsilonNonEqWallFunctionFvPatchScalarField(*this, iF)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// Member functions
|
||||||
|
|
||||||
|
// Evaluation functions
|
||||||
|
|
||||||
|
//- Update the coefficients associated with the patch field
|
||||||
|
virtual void updateCoeffs();
|
||||||
|
|
||||||
|
//- Evaluate the patchField
|
||||||
|
virtual void evaluate
|
||||||
|
(
|
||||||
|
const Pstream::commsTypes = Pstream::blocking
|
||||||
|
);
|
||||||
|
|
||||||
|
|
||||||
|
// I-O
|
||||||
|
|
||||||
|
//- Write
|
||||||
|
void write(Ostream&) const;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
} // End namespace RASModels
|
||||||
|
} // End namespace incompressible
|
||||||
|
} // End namespace Foam
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// ************************************************************************* //
|
||||||
|
|
@ -0,0 +1,292 @@
|
||||||
|
/*---------------------------------------------------------------------------*\
|
||||||
|
========= |
|
||||||
|
\\ / F ield | foam-extend: Open Source CFD
|
||||||
|
\\ / O peration | Version: 3.2
|
||||||
|
\\ / A nd | Web: http://www.foam-extend.org
|
||||||
|
\\/ M anipulation | For copyright notice see file Copyright
|
||||||
|
-------------------------------------------------------------------------------
|
||||||
|
License
|
||||||
|
This file is part of foam-extend.
|
||||||
|
|
||||||
|
foam-extend 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.
|
||||||
|
|
||||||
|
foam-extend 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 foam-extend. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
\*---------------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
#include "kNonEqWallFunctionFvPatchScalarField.H"
|
||||||
|
#include "fvPatchFieldMapper.H"
|
||||||
|
#include "addToRunTimeSelectionTable.H"
|
||||||
|
#include "wallFvPatch.H"
|
||||||
|
#include "RASModel.H"
|
||||||
|
#include "volFields.H"
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
namespace Foam
|
||||||
|
{
|
||||||
|
namespace incompressible
|
||||||
|
{
|
||||||
|
namespace RASModels
|
||||||
|
{
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
|
||||||
|
|
||||||
|
|
||||||
|
void kNonEqWallFunctionFvPatchScalarField::checkType()
|
||||||
|
{
|
||||||
|
if (!this->patch().isWall())
|
||||||
|
{
|
||||||
|
FatalErrorIn("kNonEqWallFunctionFvPatchScalarField::checkType()")
|
||||||
|
<< "Invalid wall function specification" << nl
|
||||||
|
<< " Patch type for patch " << this->patch().name()
|
||||||
|
<< " must be wall" << nl
|
||||||
|
<< " Current patch type is " << this->patch().type()
|
||||||
|
<< nl << endl
|
||||||
|
<< abort(FatalError);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
kNonEqWallFunctionFvPatchScalarField::kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const fvPatch& p,
|
||||||
|
const DimensionedField<scalar, volMesh>& iF
|
||||||
|
|
||||||
|
)
|
||||||
|
:
|
||||||
|
zeroGradientFvPatchScalarField(p, iF),
|
||||||
|
UName_("U"),
|
||||||
|
kName_("k"),
|
||||||
|
epsilonName_("epsilon"),
|
||||||
|
GName_("RASModel::G"),
|
||||||
|
nuName_("nu"),
|
||||||
|
nutName_("nut"),
|
||||||
|
Cmu_(0.09),
|
||||||
|
kappa_(0.41)
|
||||||
|
{
|
||||||
|
checkType();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
kNonEqWallFunctionFvPatchScalarField::kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const kNonEqWallFunctionFvPatchScalarField& ptf,
|
||||||
|
const fvPatch& p,
|
||||||
|
const DimensionedField<scalar, volMesh>& iF,
|
||||||
|
const fvPatchFieldMapper& mapper
|
||||||
|
|
||||||
|
)
|
||||||
|
:
|
||||||
|
zeroGradientFvPatchScalarField(ptf, p, iF, mapper),
|
||||||
|
UName_(ptf.UName_),
|
||||||
|
kName_(ptf.kName_),
|
||||||
|
epsilonName_(ptf.epsilonName_),
|
||||||
|
GName_(ptf.GName_),
|
||||||
|
nuName_(ptf.nuName_),
|
||||||
|
nutName_(ptf.nutName_),
|
||||||
|
Cmu_(ptf.Cmu_),
|
||||||
|
kappa_(ptf.kappa_)
|
||||||
|
|
||||||
|
{
|
||||||
|
checkType();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
kNonEqWallFunctionFvPatchScalarField::kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const fvPatch& p,
|
||||||
|
const DimensionedField<scalar, volMesh>& iF,
|
||||||
|
const dictionary& dict
|
||||||
|
)
|
||||||
|
:
|
||||||
|
zeroGradientFvPatchScalarField(p, iF, dict),
|
||||||
|
UName_(dict.lookupOrDefault<word>("U", "U")),
|
||||||
|
kName_(dict.lookupOrDefault<word>("k", "k")),
|
||||||
|
epsilonName_(dict.lookupOrDefault<word>("epsilon", "epsilon")),
|
||||||
|
GName_(dict.lookupOrDefault<word>("G", "RASModel::G")),
|
||||||
|
nuName_(dict.lookupOrDefault<word>("nu", "nu")),
|
||||||
|
nutName_(dict.lookupOrDefault<word>("nut", "nut")),
|
||||||
|
Cmu_(dict.lookupOrDefault<scalar>("Cmu", 0.09)),
|
||||||
|
kappa_(dict.lookupOrDefault<scalar>("kappa", 0.41))
|
||||||
|
|
||||||
|
{
|
||||||
|
checkType();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
kNonEqWallFunctionFvPatchScalarField::kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const kNonEqWallFunctionFvPatchScalarField& tkqrwfpf
|
||||||
|
)
|
||||||
|
:
|
||||||
|
zeroGradientFvPatchScalarField(tkqrwfpf),
|
||||||
|
UName_(tkqrwfpf.UName_),
|
||||||
|
kName_(tkqrwfpf.kName_),
|
||||||
|
epsilonName_(tkqrwfpf.epsilonName_),
|
||||||
|
GName_(tkqrwfpf.GName_),
|
||||||
|
nuName_(tkqrwfpf.nuName_),
|
||||||
|
nutName_(tkqrwfpf.nutName_),
|
||||||
|
Cmu_(tkqrwfpf.Cmu_),
|
||||||
|
kappa_(tkqrwfpf.kappa_)
|
||||||
|
{
|
||||||
|
checkType();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
kNonEqWallFunctionFvPatchScalarField::kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const kNonEqWallFunctionFvPatchScalarField& tkqrwfpf,
|
||||||
|
const DimensionedField<scalar, volMesh>& iF
|
||||||
|
)
|
||||||
|
:
|
||||||
|
zeroGradientFvPatchScalarField(tkqrwfpf, iF),
|
||||||
|
UName_(tkqrwfpf.UName_),
|
||||||
|
kName_(tkqrwfpf.kName_),
|
||||||
|
epsilonName_(tkqrwfpf.epsilonName_),
|
||||||
|
GName_(tkqrwfpf.GName_),
|
||||||
|
nuName_(tkqrwfpf.nuName_),
|
||||||
|
nutName_(tkqrwfpf.nutName_),
|
||||||
|
Cmu_(tkqrwfpf.Cmu_),
|
||||||
|
kappa_(tkqrwfpf.kappa_)
|
||||||
|
{
|
||||||
|
checkType();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void kNonEqWallFunctionFvPatchScalarField::updateCoeffs()
|
||||||
|
{
|
||||||
|
if (this->updated())
|
||||||
|
{
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// If G field is not present, execute zero gradient evaluation
|
||||||
|
// HJ, 20/Mar/2011
|
||||||
|
if ( !db().foundObject<volScalarField>(GName_) )
|
||||||
|
|
||||||
|
{
|
||||||
|
InfoIn("void kNonEqWallFunctionFvPatchScalarField::updateCoeffs()")
|
||||||
|
<< "Cannot access " << GName_ << " field for patch "
|
||||||
|
<< patch().name() << ". Evaluating as zeroGradient"
|
||||||
|
<< endl;
|
||||||
|
|
||||||
|
fvPatchScalarField::updateCoeffs();
|
||||||
|
|
||||||
|
zeroGradientFvPatchScalarField::evaluate();
|
||||||
|
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
|
||||||
|
const scalarField& y = rasModel.y()[patch().index()];
|
||||||
|
|
||||||
|
const scalar Cmu25 = pow(Cmu_, 0.25);
|
||||||
|
const scalar Cmu75 = pow(Cmu_, 0.75);
|
||||||
|
|
||||||
|
volScalarField& G = const_cast<volScalarField&>
|
||||||
|
(db().lookupObject<volScalarField>(GName_));
|
||||||
|
scalarField& GIn = G.internalField();
|
||||||
|
|
||||||
|
volScalarField& epsilon = const_cast<volScalarField&>
|
||||||
|
(db().lookupObject<volScalarField>(epsilonName_));
|
||||||
|
scalarField& epsilonIn = epsilon.internalField();
|
||||||
|
|
||||||
|
const volScalarField& k = db().lookupObject<volScalarField>(kName_);
|
||||||
|
const scalarField& kIn = k.internalField();
|
||||||
|
|
||||||
|
const scalarField& nuw =
|
||||||
|
lookupPatchField<volScalarField, scalar>(nuName_);
|
||||||
|
|
||||||
|
const scalarField& nutw =
|
||||||
|
lookupPatchField<volScalarField, scalar>(nutName_);
|
||||||
|
|
||||||
|
const fvPatchVectorField& Uw =
|
||||||
|
lookupPatchField<volVectorField, vector>(UName_);
|
||||||
|
|
||||||
|
const scalarField magGradUw = mag(Uw.snGrad());
|
||||||
|
|
||||||
|
// Get face cells
|
||||||
|
const unallocLabelList& fc = patch().faceCells();
|
||||||
|
|
||||||
|
// Averaged G and epsilon
|
||||||
|
forAll (nutw, faceI)
|
||||||
|
{
|
||||||
|
const label faceCellI = fc[faceI];
|
||||||
|
|
||||||
|
// Viscous sublayer thickness
|
||||||
|
const scalar yVis = nuw[faceI]*11.225/(Cmu25*sqrt(k[faceCellI]));
|
||||||
|
|
||||||
|
// Height of the wall adjacent volume
|
||||||
|
const scalar yn = 2.0*y[faceI];
|
||||||
|
|
||||||
|
if (y[faceI] > yVis)
|
||||||
|
{
|
||||||
|
GIn[faceCellI] =
|
||||||
|
sqr
|
||||||
|
(
|
||||||
|
(nutw[faceI] + nuw[faceI])*magGradUw[faceI]
|
||||||
|
)
|
||||||
|
*log(yn/yVis)
|
||||||
|
/(Cmu25*sqrt(kIn[faceCellI])*kappa_*yn);
|
||||||
|
|
||||||
|
epsilonIn[faceCellI] =
|
||||||
|
(
|
||||||
|
2.0*nuw[faceI]*kIn[faceCellI]/yVis+pow(kIn[faceCellI], 1.5)
|
||||||
|
*Cmu75*log(yn/yVis)/kappa_
|
||||||
|
)/yn;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
GIn[faceCellI] = 0.0;
|
||||||
|
epsilonIn[faceCellI] = 2.0*nuw[faceI]*kIn[faceCellI]/sqr(yVis);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// TODO: perform averaging for cells sharing more than one boundary face
|
||||||
|
|
||||||
|
zeroGradientFvPatchScalarField::updateCoeffs();
|
||||||
|
}
|
||||||
|
|
||||||
|
void kNonEqWallFunctionFvPatchScalarField::write(Ostream& os) const
|
||||||
|
{
|
||||||
|
zeroGradientFvPatchScalarField::write(os);
|
||||||
|
this->writeEntry("value", os);
|
||||||
|
writeEntryIfDifferent<word>(os, "U", "U", UName_);
|
||||||
|
writeEntryIfDifferent<word>(os, "k", "k", kName_);
|
||||||
|
writeEntryIfDifferent<word>(os, "epsilon", "epsilon", epsilonName_);
|
||||||
|
writeEntryIfDifferent<word>(os, "G", "RASModel::G", GName_);
|
||||||
|
writeEntryIfDifferent<word>(os, "nu", "nu", nuName_);
|
||||||
|
writeEntryIfDifferent<word>(os, "nut", "nut", nutName_);
|
||||||
|
os.writeKeyword("Cmu") << Cmu_ << token::END_STATEMENT << nl;
|
||||||
|
os.writeKeyword("kappa") << kappa_ << token::END_STATEMENT << nl;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
makePatchTypeField
|
||||||
|
(
|
||||||
|
fvPatchScalarField,
|
||||||
|
kNonEqWallFunctionFvPatchScalarField
|
||||||
|
);
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
} // End namespace RASModels
|
||||||
|
} // End namespace incompressible
|
||||||
|
} // End namespace Foam
|
||||||
|
|
||||||
|
// ************************************************************************* //
|
||||||
|
|
@ -0,0 +1,203 @@
|
||||||
|
/*---------------------------------------------------------------------------*\
|
||||||
|
========= |
|
||||||
|
\\ / F ield | foam-extend: Open Source CFD
|
||||||
|
\\ / O peration | Version: 4.0
|
||||||
|
\\ / A nd | Web: http://www.foam-extend.org
|
||||||
|
\\/ M anipulation | For copyright notice see file Copyright
|
||||||
|
-------------------------------------------------------------------------------
|
||||||
|
License
|
||||||
|
This file is part of foam-extend.
|
||||||
|
|
||||||
|
foam-extend 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.
|
||||||
|
|
||||||
|
foam-extend 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 foam-extend. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
Class
|
||||||
|
Foam::incompressible::RASModels::kNonEqWallFunctionFvPatchScalarField
|
||||||
|
|
||||||
|
Description
|
||||||
|
Boundary condition for turbulence k, Q, and R when using wall functions.
|
||||||
|
Acts as a zero gradient condition and takes into account non equilibrium
|
||||||
|
effects.
|
||||||
|
|
||||||
|
Reference (bibtex entry):
|
||||||
|
|
||||||
|
@article{sutaloThesis2017,
|
||||||
|
author = {\v{S}utalo, F.}
|
||||||
|
title = {{Evaluation of Variants of Enhanced Wall Treatment Wall
|
||||||
|
Function in Turbulent Flow Simulations}},
|
||||||
|
school = {Faculty of Mechanical Engineering and Naval Architecture,
|
||||||
|
University of Zagreb},
|
||||||
|
year = {2017},
|
||||||
|
}
|
||||||
|
|
||||||
|
SourceFiles
|
||||||
|
kNonEqWallFunctionFvPatchScalarField.C
|
||||||
|
|
||||||
|
Author
|
||||||
|
Filip Sutalo, FMENA Zagreb. All rights reserved.
|
||||||
|
|
||||||
|
\*---------------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
#ifndef kNonEqWallFunctionFvPatchScalarField_H
|
||||||
|
#define kNonEqWallFunctionFvPatchScalarField_H
|
||||||
|
|
||||||
|
#include "zeroGradientFvPatchFields.H"
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
namespace Foam
|
||||||
|
{
|
||||||
|
namespace incompressible
|
||||||
|
{
|
||||||
|
namespace RASModels
|
||||||
|
{
|
||||||
|
|
||||||
|
/*---------------------------------------------------------------------------*\
|
||||||
|
Class kNonEqWallFunctionFvPatchScalarField Declaration
|
||||||
|
\*---------------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
class kNonEqWallFunctionFvPatchScalarField
|
||||||
|
:
|
||||||
|
public zeroGradientFvPatchScalarField
|
||||||
|
{
|
||||||
|
// Private data
|
||||||
|
|
||||||
|
//- Name of velocity field
|
||||||
|
word UName_;
|
||||||
|
|
||||||
|
//- Name of turbulence kinetic energy field
|
||||||
|
word kName_;
|
||||||
|
|
||||||
|
//- Name of dissipation rate field
|
||||||
|
word epsilonName_;
|
||||||
|
|
||||||
|
//- Name of turbulence generation field
|
||||||
|
word GName_;
|
||||||
|
|
||||||
|
//- Name of laminar viscosity field
|
||||||
|
word nuName_;
|
||||||
|
|
||||||
|
//- Name of turbulent viscosity field
|
||||||
|
word nutName_;
|
||||||
|
|
||||||
|
//- Cmu coefficient
|
||||||
|
scalar Cmu_;
|
||||||
|
|
||||||
|
//- Von Karman constant
|
||||||
|
scalar kappa_;
|
||||||
|
|
||||||
|
//- E coefficient
|
||||||
|
scalar E_;
|
||||||
|
|
||||||
|
|
||||||
|
// Private member functions
|
||||||
|
|
||||||
|
//- Check the type of the patch
|
||||||
|
void checkType();
|
||||||
|
|
||||||
|
|
||||||
|
public:
|
||||||
|
|
||||||
|
//- Runtime type information
|
||||||
|
TypeName("kNonEqWallFunction");
|
||||||
|
|
||||||
|
|
||||||
|
// Constructors
|
||||||
|
|
||||||
|
//- Construct from patch and internal field
|
||||||
|
kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const fvPatch&,
|
||||||
|
const DimensionedField<scalar, volMesh>&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct from patch, internal field and dictionary
|
||||||
|
kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const fvPatch&,
|
||||||
|
const DimensionedField<scalar, volMesh>&,
|
||||||
|
const dictionary&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct by mapping given
|
||||||
|
// kNonEqWallFunctionFvPatchScalarField
|
||||||
|
// onto a new patch
|
||||||
|
kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const kNonEqWallFunctionFvPatchScalarField&,
|
||||||
|
const fvPatch&,
|
||||||
|
const DimensionedField<scalar, volMesh>&,
|
||||||
|
const fvPatchFieldMapper&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct as copy
|
||||||
|
kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const kNonEqWallFunctionFvPatchScalarField&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct and return a clone
|
||||||
|
virtual tmp<fvPatchScalarField> clone() const
|
||||||
|
{
|
||||||
|
return tmp<fvPatchScalarField>
|
||||||
|
(
|
||||||
|
new kNonEqWallFunctionFvPatchScalarField(*this)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
//- Construct as copy setting internal field reference
|
||||||
|
kNonEqWallFunctionFvPatchScalarField
|
||||||
|
(
|
||||||
|
const kNonEqWallFunctionFvPatchScalarField&,
|
||||||
|
const DimensionedField<scalar, volMesh>&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct and return a clone setting internal field reference
|
||||||
|
virtual tmp<fvPatchScalarField> clone
|
||||||
|
(
|
||||||
|
const DimensionedField<scalar, volMesh>& iF
|
||||||
|
) const
|
||||||
|
{
|
||||||
|
return tmp<fvPatchScalarField>
|
||||||
|
(
|
||||||
|
new kNonEqWallFunctionFvPatchScalarField(*this, iF)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// Member functions
|
||||||
|
|
||||||
|
// Evaluation functions
|
||||||
|
|
||||||
|
//- Update the coefficients associated with the patch field
|
||||||
|
virtual void updateCoeffs();
|
||||||
|
|
||||||
|
// I-O
|
||||||
|
|
||||||
|
//- Write
|
||||||
|
void write(Ostream&) const;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
} // End namespace RASModels
|
||||||
|
} // End namespace incompressible
|
||||||
|
} // End namespace Foam
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// ************************************************************************* //
|
||||||
Reference in a new issue