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95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/*---------------------------------------------------------------------------*\
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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) 2011 OpenFOAM Foundation
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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 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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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, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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\*----------------------------------------------------------------------------*/
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#include "radialActuationDiskSource.H"
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#include "volFields.H"
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#include "fvMatrix.H"
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#include "fvm.H"
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#include "mathematicalConstants.H"
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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template<class RhoFieldType>
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void Foam::radialActuationDiskSource::
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addRadialActuationDiskAxialInertialResistance
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(
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vectorField& Usource,
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const labelList& cells,
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const scalarField& Vcells,
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const RhoFieldType& rho,
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const vectorField& U
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) const
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{
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scalar a = 1.0 - Cp_/Ct_;
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scalarField T(cells.size());
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scalarField Tr(cells.size());
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const vector uniDiskDir = diskDir_/mag(diskDir_);
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tensor E(tensor::zero);
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E.xx() = uniDiskDir.x();
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E.yy() = uniDiskDir.y();
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E.zz() = uniDiskDir.z();
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const Field<vector> zoneCellCentres(mesh().cellCentres(), cells);
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const Field<scalar> zoneCellVolumes(mesh().cellVolumes(), cells);
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const vector avgCentre = gSum(zoneCellVolumes*zoneCellCentres)/V();
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const scalar maxR = gMax(mag(zoneCellCentres - avgCentre));
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scalar intCoeffs =
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radialCoeffs_[0]
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+ radialCoeffs_[1]*sqr(maxR)/2.0
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+ radialCoeffs_[2]*pow4(maxR)/3.0;
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forAll(cells, i)
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{
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T[i] = 2.0*rho[cells[i]]*diskArea_*mag(U[cells[i]])*a/(1.0 - a);
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scalar r2 = magSqr(mesh().cellCentres()[cells[i]] - avgCentre);
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Tr[i] =
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T[i]
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*(radialCoeffs_[0] + radialCoeffs_[1]*r2 + radialCoeffs_[2]*sqr(r2))
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/intCoeffs;
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}
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forAll(cells, i)
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{
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Usource[cells[i]] += ((Vcells[cells[i]]/V_)*Tr[i]*E) & U[cells[i]];
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}
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if (debug)
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{
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Info<< "Source name: " << name() << nl
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<< "Average centre: " << avgCentre << nl
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<< "Maximum radius: " << maxR << endl;
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}
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}
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// ************************************************************************* //
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