421 lines
12 KiB
C
421 lines
12 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 held by original author
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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 2 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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Author
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Hrvoje Jasak, Wikki Ltd. All rights reserved
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\*----------------------------------------------------------------------------*/
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#include "bubbleHistory.H"
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#include "addToRunTimeSelectionTable.H"
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#include "volFields.H"
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#include "boundBox.H"
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#include "freeSurface.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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defineTypeNameAndDebug(bubbleHistory, 0);
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addToRunTimeSelectionTable
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(
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functionObject,
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bubbleHistory,
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dictionary
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);
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}
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::bubbleHistory::bubbleHistory
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(
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const word& name,
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const Time& t,
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const dictionary& dict
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)
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:
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functionObject(name),
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name_(name),
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time_(t),
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regionName_(polyMesh::defaultRegion),
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V0_(SMALL),
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historyFilePtr_(NULL)
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{
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if (dict.found("region"))
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{
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dict.lookup("region") >> regionName_;
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}
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if (Pstream::master())
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{
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if (!time_.processorCase())
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{
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mkDir
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(
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time_.path()
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/"history"
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/time_.timeName()
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);
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historyFilePtr_ =
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new OFstream
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(
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time_.path()
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/"history"
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/time_.timeName()
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/"history.dat"
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);
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}
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else
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{
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mkDir
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(
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time_.path()/".."/"history"
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/time_.timeName()
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);
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historyFilePtr_ =
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new OFstream
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(
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time_.path()/".."
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/"history"
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/time_.timeName()
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/"history.dat"
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);
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}
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(*historyFilePtr_)
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<< "Time" << tab
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<< "Cx" << tab
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<< "Cy" << tab
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<< "Cz" << tab
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<< "Ux" << tab
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<< "Uy" << tab
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<< "Uz" << tab
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<< "ax" << tab
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<< "ay" << tab
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<< "az" << tab
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<< "Fx" << tab
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<< "Fy" << tab
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<< "Fz" << tab
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<< "D" << tab
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<< "Lx" << tab
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<< "Ly" << tab
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<< "Lz" << tab
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<< "CD" << tab
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<< "CVM" << tab
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<< "RE" << tab
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<< "WE" << tab
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<< "V/V0" << tab
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<< "A" << tab
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<< "B" << tab
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<< "C" << endl;
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}
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const fvMesh& mesh = time_.lookupObject<fvMesh>(regionName_);
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const volScalarField& fluidIndicator =
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mesh.lookupObject<volScalarField>("fluidIndicator");
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V0_ = gSum((1 - fluidIndicator.internalField())*mesh.V().field());
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const freeSurface& fs =
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mesh.lookupObject<freeSurface>("freeSurfaceProperties");
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if (!fs.twoFluids())
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{
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V0_ =
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- gSum
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(
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mesh.Cf().boundaryField()[fs.aPatchID()]
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& mesh.Sf().boundaryField()[fs.aPatchID()]
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)/3;
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if (mesh.nGeometricD() != 3)
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{
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FatalErrorIn("bubbleHistory::")
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<< "One-fluid bubble centroid calc "
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<< "is not implemented for 2d mesh"
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<< abort(FatalError);
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}
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}
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::bubbleHistory::start()
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{
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const fvMesh& mesh =
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time_.lookupObject<fvMesh>(regionName_);
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const volScalarField& fluidIndicator =
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mesh.lookupObject<volScalarField>("fluidIndicator");
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const freeSurface& fs =
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mesh.lookupObject<freeSurface>("freeSurfaceProperties");
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scalar V = gSum((1 - fluidIndicator.internalField())*mesh.V().field());
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if (!fs.twoFluids())
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{
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V =
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- gSum
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(
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mesh.Cf().boundaryField()[fs.aPatchID()]
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& mesh.Sf().boundaryField()[fs.aPatchID()]
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)/3;
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if (mesh.nGeometricD() != 3)
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{
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FatalErrorIn("bubbleHistory::")
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<< "One-fluid bubble centroid calc "
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<< "is not implemented for 2d mesh"
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<< abort(FatalError);
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}
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}
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const IOdictionary& mrf =
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mesh.lookupObject<IOdictionary>("movingReferenceFrame");
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dimensionedVector C(mrf.lookup("XF"));
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dimensionedVector U(mrf.lookup("UF"));
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dimensionedVector a(mrf.lookup("aF"));
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vector F = fs.totalViscousForce() + fs.totalPressureForce();
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vector dragDir;
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scalar Uref;
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if(mag(U.value()) > SMALL)
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{
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dragDir = -U.value()/mag(U.value());
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Uref = mag(U.value());
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}
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else
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{
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dragDir = fs.g().value()/(mag(fs.g().value()) + SMALL);
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Uref = SMALL;
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}
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scalar dragForce = (dragDir&F);
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vector liftForce = transform(I - dragDir*dragDir, F);
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scalar Deq = 2*pow(3*V/(4*M_PI), 1.0/3.0);
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scalar Ug = -(U.value()&(fs.g().value()/(mag(fs.g().value()) + SMALL)));
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scalar CD =
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(4.0/3.0)*(fs.rhoFluidA().value() - fs.rhoFluidB().value())
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*mag(fs.g().value())*Deq
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/(fs.rhoFluidA().value()*mag(U.value())*Ug + SMALL);
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scalar ag = -(a.value()&(fs.g().value()/(mag(fs.g().value()) + SMALL)));
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scalar CVM =
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(fs.rhoFluidA().value() - fs.rhoFluidB().value())*mag(fs.g().value())
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/(fs.rhoFluidA().value()*ag + SMALL)
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- (fs.rhoFluidB().value()/(fs.rhoFluidA().value() + SMALL));
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scalar RE = Ug*Deq*fs.rhoFluidA().value()/(fs.muFluidA().value() + SMALL);
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scalar WE = fs.rhoFluidA().value()*sqr(Ug)*Deq
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/(fs.cleanInterfaceSurfTension().value() + SMALL);
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boundBox box(mesh.C().boundaryField()[fs.aPatchID()]);
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if (Pstream::master())
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{
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historyFilePtr_->precision(12);
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(*historyFilePtr_) << time_.value() << tab
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<< C.value().x() << tab
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<< C.value().y() << tab
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<< C.value().z() << tab
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<< U.value().x() << tab
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<< U.value().y() << tab
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<< U.value().z() << tab
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<< a.value().x() << tab
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<< a.value().y() << tab
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<< a.value().z() << tab
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<< F.x() << tab
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<< F.y() << tab
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<< F.z() << tab
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<< dragForce << tab
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<< liftForce.x() << tab
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<< liftForce.y() << tab
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<< liftForce.z() << tab
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<< CD << tab
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<< CVM << tab
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<< RE << tab
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<< WE << tab
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<< mag(1.0 - V/V0_) << tab
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<< (box.max().x()-box.min().x())/2 << tab
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<< (box.max().y()-box.min().y())/2 << tab
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<< (box.max().z()-box.min().z())/2 << endl;
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return true;
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}
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return false;
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}
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bool Foam::bubbleHistory::execute()
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{
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const fvMesh& mesh =
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time_.lookupObject<fvMesh>(regionName_);
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const volScalarField& fluidIndicator =
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mesh.lookupObject<volScalarField>("fluidIndicator");
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const freeSurface& fs =
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mesh.lookupObject<freeSurface>("freeSurfaceProperties");
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scalar V = gSum((1 - fluidIndicator.internalField())*mesh.V().field());
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if (!fs.twoFluids())
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{
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V =
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- gSum
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(
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mesh.Cf().boundaryField()[fs.aPatchID()]
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& mesh.Sf().boundaryField()[fs.aPatchID()]
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)/3;
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if (mesh.nGeometricD() != 3)
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{
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FatalErrorIn("bubbleHistory")
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<< "One-fluid bubble centroid calc "
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<< "is not implemented for 2d mesh"
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<< abort(FatalError);
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}
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}
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const IOdictionary& mrf =
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mesh.lookupObject<IOdictionary>("movingReferenceFrame");
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dimensionedVector C(mrf.lookup("XF"));
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dimensionedVector U(mrf.lookup("UF"));
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dimensionedVector a(mrf.lookup("aF"));
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vector F = fs.totalViscousForce() + fs.totalPressureForce();
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vector dragDir;
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scalar Uref;
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if(mag(U.value()) > SMALL)
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{
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dragDir = -U.value()/mag(U.value());
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Uref = mag(U.value());
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}
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else
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{
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dragDir = fs.g().value()/(mag(fs.g().value()) + SMALL);
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Uref = SMALL;
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}
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scalar dragForce = (dragDir&F);
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vector liftForce = transform(I - dragDir*dragDir, F);
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scalar Deq = pow(3*V/(4*M_PI), 1.0/3.0);
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scalar Ug = -(U.value()&(fs.g().value()/(mag(fs.g().value()) + SMALL)));
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scalar CD =
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(4.0/3.0)*(fs.rhoFluidA().value() - fs.rhoFluidB().value())
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*mag(fs.g().value())*Deq
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/(fs.rhoFluidA().value()*mag(U.value())*Ug + SMALL);
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scalar ag = -(a.value()&(fs.g().value()/(mag(fs.g().value()) + SMALL)));
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scalar CVM =
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(fs.rhoFluidA().value() - fs.rhoFluidB().value())*mag(fs.g().value())
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/(fs.rhoFluidA().value()*ag + SMALL)
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- (fs.rhoFluidB().value()/(fs.rhoFluidA().value() + SMALL));
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scalar RE = Ug*Deq*fs.rhoFluidA().value()/(fs.muFluidA().value() + SMALL);
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scalar WE = fs.rhoFluidA().value()*sqr(Ug)*Deq
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/(fs.cleanInterfaceSurfTension().value() + SMALL);
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boundBox box(mesh.C().boundaryField()[fs.aPatchID()]);
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if (Pstream::master())
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{
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historyFilePtr_->precision(12);
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(*historyFilePtr_) << time_.value() << tab
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<< C.value().x() << tab
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<< C.value().y() << tab
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<< C.value().z() << tab
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<< U.value().x() << tab
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<< U.value().y() << tab
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<< U.value().z() << tab
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<< a.value().x() << tab
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<< a.value().y() << tab
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<< a.value().z() << tab
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<< F.x() << tab
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<< F.y() << tab
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<< F.z() << tab
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<< dragForce << tab
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<< liftForce.x() << tab
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<< liftForce.y() << tab
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<< liftForce.z() << tab
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<< CD << tab
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<< CVM << tab
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<< RE << tab
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<< WE << tab
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<< mag(1.0 - V/V0_) << tab
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<< (box.max().x()-box.min().x())/2 << tab
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<< (box.max().y()-box.min().y())/2 << tab
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<< (box.max().z()-box.min().z())/2 << endl;
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return true;
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}
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return false;
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}
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bool Foam::bubbleHistory::read(const dictionary& dict)
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{
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if (dict.found("region"))
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{
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dict.lookup("region") >> regionName_;
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}
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return true;
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}
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// ************************************************************************* //
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