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ENH: adding swirlFanVelocity BC for jumpCyclic types
It creates a swirling velocity across a baffle using jumpCyclic for vectors
This commit is contained in:
sergio
@ -3,7 +3,7 @@
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / O peration |
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||||||
\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
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\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
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\\/ M anipulation |
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\\/ M anipulation | Copyright (C) 2018 OpenCFD Ltd.
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-------------------------------------------------------------------------------
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-------------------------------------------------------------------------------
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License
|
License
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||||||
This file is part of OpenFOAM.
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This file is part of OpenFOAM.
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@ -159,6 +159,18 @@ void jumpCyclicFvPatchField<scalar>::updateInterfaceMatrix
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) const;
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) const;
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template<>
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void jumpCyclicFvPatchField<vector>::updateInterfaceMatrix
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(
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scalarField& result,
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const bool add,
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const scalarField& psiInternal,
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const scalarField& coeffs,
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const direction cmpt,
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const Pstream::commsTypes commsType
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) const;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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} // End namespace Foam
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@ -3,7 +3,7 @@
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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||||||
\\ / O peration |
|
\\ / O peration |
|
||||||
\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
|
\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
|
||||||
\\/ M anipulation |
|
\\/ M anipulation | Copyright (C) 2018 OpenCFD Ltd.
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||||||
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
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||||||
License
|
License
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||||||
This file is part of OpenFOAM.
|
This file is part of OpenFOAM.
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@ -83,4 +83,54 @@ void Foam::jumpCyclicFvPatchField<Foam::scalar>::updateInterfaceMatrix
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}
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}
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template<>
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void Foam::jumpCyclicFvPatchField<Foam::vector>::updateInterfaceMatrix
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(
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scalarField& result,
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const bool add,
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const scalarField& psiInternal,
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const scalarField& coeffs,
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const direction cmpt,
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const Pstream::commsTypes
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) const
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{
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scalarField pnf(this->size());
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const labelUList& nbrFaceCells =
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this->cyclicPatch().neighbFvPatch().faceCells();
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const Field<vector>& iField = this->primitiveField();
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// only apply jump to original field
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if (&psiInternal == &(iField.component(cmpt).ref()))
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{
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Field<vector> jf(this->jump());
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if (!this->cyclicPatch().owner())
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{
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jf *= -1.0;
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}
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forAll(*this, facei)
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{
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pnf[facei] =
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psiInternal[nbrFaceCells[facei]]
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- jf[facei].component(cmpt);
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}
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}
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else
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{
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forAll(*this, facei)
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{
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pnf[facei] = psiInternal[nbrFaceCells[facei]];
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}
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}
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// Transform according to the transformation tensors
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this->transformCoupleField(pnf, cmpt);
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// Multiply the field by coefficients and add into the result
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this->addToInternalField(result, !add, coeffs, pnf);
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}
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// ************************************************************************* //
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// ************************************************************************* //
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@ -0,0 +1,275 @@
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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) 2018 OpenCFD Ltd.
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||||||
|
\\/ M anipulation |
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||||||
|
-------------------------------------------------------------------------------
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||||||
|
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/>.
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|
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\*---------------------------------------------------------------------------*/
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#include "swirlFanVelocityFvPatchField.H"
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#include "addToRunTimeSelectionTable.H"
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#include "fvPatchFieldMapper.H"
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#include "volFields.H"
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#include "surfaceFields.H"
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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void Foam::swirlFanVelocityFvPatchField::calcFanJump()
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{
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if (this->cyclicPatch().owner())
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{
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const surfaceScalarField& phi =
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db().lookupObject<surfaceScalarField>(phiName_);
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const fvPatchField<scalar>& pOwner =
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patch().lookupPatchField<volScalarField, scalar>(pName_);
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const label nbrIndex = this->cyclicPatch().neighbPatchID();
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const fvPatch& nbrPatch = patch().boundaryMesh()[nbrIndex];
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const fvPatchField<scalar>& pSlave =
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nbrPatch.lookupPatchField<volScalarField, scalar>(pName_);
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scalarField deltaP(mag(pOwner - pSlave));
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if (phi.dimensions() == dimMass/dimTime)
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{
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deltaP /=
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patch().lookupPatchField<volScalarField, scalar>(rhoName_);
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}
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const vector axisHat =
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gSum(patch().nf()*patch().magSf())/gSum(patch().magSf());
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vectorField tanDir
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(
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axisHat ^ (patch().Cf() - origin_)
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);
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tanDir /= (mag(tanDir) + SMALL);
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scalarField magTangU(patch().size(), 0.0);
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if (useRealRadius_)
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{
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const scalarField rMag(mag(patch().Cf() - origin_));
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forAll (rMag, i)
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{
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if (rMag[i] > rInner_ && rMag[i] < rOuter_)
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{
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magTangU =
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deltaP
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/rMag[i]
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/fanEff_
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/rpm_*constant::mathematical::pi/30.0;
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}
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}
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}
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else
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{
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magTangU =
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deltaP/rEff_/fanEff_/rpm_*constant::mathematical::pi/30.0;
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}
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// U upstream from fan
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const vectorField Uup(this->patchInternalField());
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// U normal to fan
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const vectorField Un((Uup & patch().nf())*patch().nf());
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// U tangential into fan
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const vectorField UtanIn(Uup - Un);
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// Calculate the tangential velocity
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const vectorField tangentialVelocity(magTangU*tanDir);
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this->jump_ = tangentialVelocity + UtanIn;
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}
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::swirlFanVelocityFvPatchField::swirlFanVelocityFvPatchField
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(
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const fvPatch& p,
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const DimensionedField<vector, volMesh>& iF
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)
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:
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fixedJumpFvPatchField<vector>(p, iF),
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phiName_("phi"),
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pName_("p"),
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rhoName_("rho"),
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origin_(),
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rpm_(0.0),
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rEff_(0.0),
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fanEff_(1.0),
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useRealRadius_(false),
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rInner_(0.0),
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rOuter_(0.0)
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{}
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Foam::swirlFanVelocityFvPatchField::swirlFanVelocityFvPatchField
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(
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const fvPatch& p,
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const DimensionedField<vector, volMesh>& iF,
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const dictionary& dict
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)
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:
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fixedJumpFvPatchField<vector>(p, iF, dict),
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phiName_(dict.lookupOrDefault<word>("phi", "phi")),
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pName_(dict.lookupOrDefault<word>("p", "p")),
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rhoName_(dict.lookupOrDefault<word>("rho", "rho")),
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origin_
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(
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dict.lookupOrDefault
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|
(
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"origin",
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patch().size()
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? gSum(patch().Cf()*patch().magSf())/gSum(patch().magSf())
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: Zero
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)
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),
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rpm_(dict.lookupOrDefault<scalar>("rpm", 0.0)),
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rEff_(dict.lookupOrDefault<scalar>("rEff", 0.0)),
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fanEff_(dict.lookupOrDefault<scalar>("fanEff", 1.0)),
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useRealRadius_(dict.lookupOrDefault<Switch>("useRealRadius", false)),
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rInner_(dict.lookupOrDefault<scalar>("rInner", 0.0)),
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rOuter_(dict.lookupOrDefault<scalar>("rOuter", 0.0))
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|
{
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if (dict.found("value"))
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|
{
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|
fvPatchVectorField::operator=
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|
(
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|
vectorField("value", dict, p.size())
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|
);
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|
}
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|
else
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|
{
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this->evaluate(Pstream::commsTypes::blocking);
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}
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}
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Foam::swirlFanVelocityFvPatchField::swirlFanVelocityFvPatchField
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|
(
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const swirlFanVelocityFvPatchField& ptf,
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const fvPatch& p,
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const DimensionedField<vector, volMesh>& iF,
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const fvPatchFieldMapper& mapper
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|
)
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|
:
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fixedJumpFvPatchField<vector>(ptf, p, iF, mapper),
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phiName_(ptf.phiName_),
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pName_(ptf.pName_),
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|
rhoName_(ptf.rhoName_),
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|
origin_(ptf.origin_),
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|
rpm_(ptf.rpm_),
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|
rEff_(ptf.rEff_),
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|
fanEff_(ptf.fanEff_),
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|
useRealRadius_(ptf.useRealRadius_),
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|
rInner_(ptf.rInner_),
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|
rOuter_(ptf.rOuter_)
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|
{}
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|
|
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|
|
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|
Foam::swirlFanVelocityFvPatchField::swirlFanVelocityFvPatchField
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|
(
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|
const swirlFanVelocityFvPatchField& ptf
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|
)
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|
:
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|
fixedJumpFvPatchField<vector>(ptf),
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|
phiName_(ptf.phiName_),
|
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|
rhoName_(ptf.rhoName_),
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|
origin_(ptf.origin_),
|
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|
rpm_(ptf.rpm_),
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|
rEff_(ptf.rEff_),
|
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|
useRealRadius_(ptf.useRealRadius_),
|
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|
rInner_(ptf.rInner_),
|
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|
rOuter_(ptf.rOuter_)
|
||||||
|
{}
|
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|
|
||||||
|
|
||||||
|
Foam::swirlFanVelocityFvPatchField::swirlFanVelocityFvPatchField
|
||||||
|
(
|
||||||
|
const swirlFanVelocityFvPatchField& ptf,
|
||||||
|
const DimensionedField<vector, volMesh>& iF
|
||||||
|
)
|
||||||
|
:
|
||||||
|
fixedJumpFvPatchField<vector>(ptf, iF),
|
||||||
|
phiName_(ptf.phiName_),
|
||||||
|
rhoName_(ptf.rhoName_),
|
||||||
|
origin_(ptf.origin_),
|
||||||
|
rpm_(ptf.rpm_),
|
||||||
|
rEff_(ptf.rEff_),
|
||||||
|
useRealRadius_(ptf.useRealRadius_),
|
||||||
|
rInner_(ptf.rInner_),
|
||||||
|
rOuter_(ptf.rOuter_)
|
||||||
|
{}
|
||||||
|
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
void Foam::swirlFanVelocityFvPatchField::updateCoeffs()
|
||||||
|
{
|
||||||
|
if (this->updated())
|
||||||
|
{
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
calcFanJump();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void Foam::swirlFanVelocityFvPatchField::write(Ostream& os) const
|
||||||
|
{
|
||||||
|
fixedJumpFvPatchField<vector>::write(os);
|
||||||
|
|
||||||
|
if (this->cyclicPatch().owner())
|
||||||
|
{
|
||||||
|
os.writeEntryIfDifferent<word>("phi", "phi", phiName_);
|
||||||
|
os.writeEntryIfDifferent<word>("p", "p", pName_);
|
||||||
|
os.writeEntryIfDifferent<word>("rho", "rho", rhoName_);
|
||||||
|
os.writeEntry("origin", origin_);
|
||||||
|
os.writeEntry("rpm", rpm_);
|
||||||
|
|
||||||
|
os.writeEntryIfDifferent<scalar>("rEff", 0.0, rEff_);
|
||||||
|
os.writeEntryIfDifferent<bool>("useRealRadius", false, useRealRadius_);
|
||||||
|
os.writeEntryIfDifferent<scalar>("rInner", 0.0, rInner_);
|
||||||
|
os.writeEntryIfDifferent<scalar>("rOuter", 0.0, rOuter_);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
namespace Foam
|
||||||
|
{
|
||||||
|
makePatchTypeField
|
||||||
|
(
|
||||||
|
fvPatchVectorField,
|
||||||
|
swirlFanVelocityFvPatchField
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// ************************************************************************* //
|
||||||
@ -0,0 +1,241 @@
|
|||||||
|
/*---------------------------------------------------------------------------*\
|
||||||
|
========= |
|
||||||
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||||
|
\\ / O peration |
|
||||||
|
\\ / A nd | Copyright (C) 2018 OpenCFD Ltd.
|
||||||
|
\\/ 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/>.
|
||||||
|
|
||||||
|
Class
|
||||||
|
Foam::swirlFanVelocityFvPatchField
|
||||||
|
|
||||||
|
Group
|
||||||
|
grpCoupledBoundaryConditions
|
||||||
|
|
||||||
|
Description
|
||||||
|
This boundary condition provides a jump condition for U across a
|
||||||
|
cyclic pressure jump condition and applies a transformation to U.
|
||||||
|
|
||||||
|
The U-jump is specified with a swirl component as follows:
|
||||||
|
|
||||||
|
Utan = deltaP/rEff/fanEff/rpm/pi/30.0;
|
||||||
|
|
||||||
|
where:
|
||||||
|
|
||||||
|
deltaP : pressure drop across the cyclic.
|
||||||
|
rEff : effective radius
|
||||||
|
fanEff : fan efficiency coefficient
|
||||||
|
rmp : RPM of the fan
|
||||||
|
|
||||||
|
Alternatively an inner and outer radii can be used instead of rEff. The
|
||||||
|
Utan is as follow for r > rInner and r < rOuter
|
||||||
|
|
||||||
|
Utan = deltaP/r/fanEff/rpm/pi/30.0;
|
||||||
|
|
||||||
|
where:
|
||||||
|
|
||||||
|
r : p - origin, p is the face center
|
||||||
|
|
||||||
|
Outside rInner and rOuter, Utan = 0. The input for this mode is:
|
||||||
|
|
||||||
|
useRealRadius true;
|
||||||
|
rInner 0.005;
|
||||||
|
rOuter 0.01;
|
||||||
|
|
||||||
|
The radial velocity is zero in the present model.
|
||||||
|
|
||||||
|
Usage
|
||||||
|
\table
|
||||||
|
Property | Description | Required | Default value
|
||||||
|
patchType | underlying patch type should be \c cyclic| yes |
|
||||||
|
phi | flux field name | no | phi
|
||||||
|
rho | density field name | no | rho
|
||||||
|
p | pressure field name | no | p
|
||||||
|
origin | fan centre | no | calculated
|
||||||
|
rpm | RPM of the fan | yes
|
||||||
|
rEff | Effective radius | no | 0.0
|
||||||
|
fanEff | Fan efficiency | no | 1.0
|
||||||
|
useRealRadius| Use inner/outer radii | no | false
|
||||||
|
rInner | Inner radius | no | 0.0
|
||||||
|
rOuter | Outer radius | no | 0.0
|
||||||
|
\endtable
|
||||||
|
|
||||||
|
Example of the boundary condition specification:
|
||||||
|
\verbatim
|
||||||
|
<patchName>
|
||||||
|
{
|
||||||
|
cyclicFaces_master
|
||||||
|
{
|
||||||
|
type swirlFanVelocity;
|
||||||
|
patchType cyclic;
|
||||||
|
jump uniform (0 0 0);
|
||||||
|
value uniform (0 0 0);
|
||||||
|
rpm 1000;
|
||||||
|
rEff 0.01;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
\endverbatim
|
||||||
|
|
||||||
|
|
||||||
|
SourceFiles
|
||||||
|
swirlFanVelocityFvPatchField.C
|
||||||
|
|
||||||
|
\*---------------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
#ifndef swirlFanVelocityFvPatchField_H
|
||||||
|
#define swirlFanVelocityFvPatchField_H
|
||||||
|
|
||||||
|
#include "fixedJumpFvPatchField.H"
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
namespace Foam
|
||||||
|
{
|
||||||
|
|
||||||
|
/*---------------------------------------------------------------------------*\
|
||||||
|
Class swirlFanVelocityFvPatchField Declaration
|
||||||
|
\*---------------------------------------------------------------------------*/
|
||||||
|
|
||||||
|
class swirlFanVelocityFvPatchField
|
||||||
|
:
|
||||||
|
public fixedJumpFvPatchField<vector>
|
||||||
|
{
|
||||||
|
// Private data
|
||||||
|
|
||||||
|
|
||||||
|
//- Name of the flux field
|
||||||
|
const word phiName_;
|
||||||
|
|
||||||
|
//- Name of the pressure field
|
||||||
|
const word pName_;
|
||||||
|
|
||||||
|
//- Name of the rho field
|
||||||
|
const word rhoName_;
|
||||||
|
|
||||||
|
//- Origin of the rotation
|
||||||
|
const vector origin_;
|
||||||
|
|
||||||
|
//- Fan rpm
|
||||||
|
scalar rpm_;
|
||||||
|
|
||||||
|
//- Effective fan radius
|
||||||
|
scalar rEff_;
|
||||||
|
|
||||||
|
//- Fan efficiency
|
||||||
|
scalar fanEff_;
|
||||||
|
|
||||||
|
//- Switch to use effective radius or inner and outer radius
|
||||||
|
Switch useRealRadius_;
|
||||||
|
|
||||||
|
//- Inner radius
|
||||||
|
scalar rInner_;
|
||||||
|
|
||||||
|
//- Outer radius
|
||||||
|
scalar rOuter_;
|
||||||
|
|
||||||
|
|
||||||
|
// Private Member Functions
|
||||||
|
|
||||||
|
//- Calculate the fan pressure jump
|
||||||
|
void calcFanJump();
|
||||||
|
|
||||||
|
|
||||||
|
public:
|
||||||
|
|
||||||
|
//- Runtime type information
|
||||||
|
TypeName("swirlFanVelocity");
|
||||||
|
|
||||||
|
|
||||||
|
// Constructors
|
||||||
|
|
||||||
|
//- Construct from patch and internal field
|
||||||
|
swirlFanVelocityFvPatchField
|
||||||
|
(
|
||||||
|
const fvPatch&,
|
||||||
|
const DimensionedField<vector, volMesh>&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct from patch, internal field and dictionary
|
||||||
|
swirlFanVelocityFvPatchField
|
||||||
|
(
|
||||||
|
const fvPatch&,
|
||||||
|
const DimensionedField<vector, volMesh>&,
|
||||||
|
const dictionary&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct by mapping given swirlFanVelocityFvPatchField onto a new patch
|
||||||
|
swirlFanVelocityFvPatchField
|
||||||
|
(
|
||||||
|
const swirlFanVelocityFvPatchField&,
|
||||||
|
const fvPatch&,
|
||||||
|
const DimensionedField<vector, volMesh>&,
|
||||||
|
const fvPatchFieldMapper&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct as copy
|
||||||
|
swirlFanVelocityFvPatchField
|
||||||
|
(
|
||||||
|
const swirlFanVelocityFvPatchField&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct and return a clone
|
||||||
|
virtual tmp<fvPatchField<vector>> clone() const
|
||||||
|
{
|
||||||
|
return tmp<fvPatchField<vector>>
|
||||||
|
(
|
||||||
|
new swirlFanVelocityFvPatchField(*this)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
//- Construct as copy setting internal field reference
|
||||||
|
swirlFanVelocityFvPatchField
|
||||||
|
(
|
||||||
|
const swirlFanVelocityFvPatchField&,
|
||||||
|
const DimensionedField<vector, volMesh>&
|
||||||
|
);
|
||||||
|
|
||||||
|
//- Construct and return a clone setting internal field reference
|
||||||
|
virtual tmp<fvPatchField<vector>> clone
|
||||||
|
(
|
||||||
|
const DimensionedField<vector, volMesh>& iF
|
||||||
|
) const
|
||||||
|
{
|
||||||
|
return tmp<fvPatchField<vector>>
|
||||||
|
(
|
||||||
|
new swirlFanVelocityFvPatchField(*this, iF)
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// Member functions
|
||||||
|
|
||||||
|
//- Update the coefficients associated with the patch field
|
||||||
|
virtual void updateCoeffs();
|
||||||
|
|
||||||
|
//- Write
|
||||||
|
virtual void write(Ostream&) const;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||||
|
|
||||||
|
} // End namespace Foam
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// ************************************************************************* //
|
||||||
Reference in New Issue
Block a user