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66 lines
2.1 KiB
C
66 lines
2.1 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) 2016 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
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "volFields.H"
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#include "Random.H"
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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template<class Type>
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bool Foam::functionObjects::randomise::calcRandomised()
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{
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typedef GeometricField<Type, fvPatchField, volMesh> VolFieldType;
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if (foundObject<VolFieldType>(fieldName_))
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{
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const VolFieldType& field = lookupObject<VolFieldType>(fieldName_);
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resultName_ = fieldName_ + "Random";
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tmp<VolFieldType> rfieldt(new VolFieldType(field));
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VolFieldType& rfield = rfieldt.ref();
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Random rand(1234567);
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forAll(field, celli)
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{
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Type rndPert;
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rand.randomise(rndPert);
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rndPert = 2.0*rndPert - pTraits<Type>::one;
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rndPert /= mag(rndPert);
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rfield[celli] += magPerturbation_*rndPert;
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}
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return store(resultName_, rfieldt);
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}
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else
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{
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return false;
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}
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}
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// ************************************************************************* //
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