149 lines
4.3 KiB
C++
149 lines
4.3 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) 2018 OpenCFD Ltd.
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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 "MappedField.H"
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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template<class Type>
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inline Foam::tmp<Foam::Field<Type>>
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Foam::PatchFunction1Types::MappedField<Type>::value
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(
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const scalar x
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) const
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{
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const polyMesh& mesh = this->patch_.boundaryMesh().mesh();
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checkTable();
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tmp<Field<Type>> tfld(new Field<Type>(this->patch_.size()));
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Field<Type>& fld = tfld.ref();
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Type wantedAverage;
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if (endSampleTime_ == -1)
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{
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// Only start value
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if (debug)
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{
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Pout<< "updateCoeffs : Sampled, non-interpolated values"
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<< " from start time:"
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<< sampleTimes_[startSampleTime_].name() << nl;
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}
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fld = startSampledValues_;
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wantedAverage = startAverage_;
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}
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else
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{
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scalar start = sampleTimes_[startSampleTime_].value();
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scalar end = sampleTimes_[endSampleTime_].value();
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scalar s = (mesh.time().value() - start)/(end - start);
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if (debug)
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{
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Pout<< "updateCoeffs : Sampled, interpolated values"
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<< " between start time:"
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<< sampleTimes_[startSampleTime_].name()
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<< " and end time:" << sampleTimes_[endSampleTime_].name()
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<< " with weight:" << s << endl;
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}
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fld = ((1 - s)*startSampledValues_ + s*endSampledValues_);
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wantedAverage = (1 - s)*startAverage_ + s*endAverage_;
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}
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// Enforce average. Either by scaling (if scaling factor > 0.5) or by
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// offsetting.
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if (setAverage_)
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{
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const scalarField magSf(mag(this->patch_.faceAreas()));
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Type averagePsi = gSum(magSf*fld)/gSum(magSf);
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if (debug)
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{
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Pout<< "updateCoeffs :"
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<< " actual average:" << averagePsi
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<< " wanted average:" << wantedAverage
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<< endl;
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}
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if (mag(averagePsi) < VSMALL)
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{
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// Field too small to scale. Offset instead.
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const Type offset = wantedAverage - averagePsi;
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if (debug)
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{
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Pout<< "updateCoeffs :"
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<< " offsetting with:" << offset << endl;
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}
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fld += offset;
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}
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else
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{
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const scalar scale = mag(wantedAverage)/mag(averagePsi);
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if (debug)
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{
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Pout<< "updateCoeffs :"
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<< " scaling with:" << scale << endl;
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}
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fld *= scale;
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}
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}
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// Apply offset to mapped values
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if (offset_.valid())
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{
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const scalar t = mesh.time().timeOutputValue();
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fld += offset_->value(t);
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}
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if (debug)
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{
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Pout<< "updateCoeffs : set fixedValue to min:" << gMin(fld)
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<< " max:" << gMax(fld)
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<< " avg:" << gAverage(fld) << endl;
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}
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return this->transform(tfld);
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}
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template<class Type>
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inline Foam::tmp<Foam::Field<Type>>
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Foam::PatchFunction1Types::MappedField<Type>::integrate
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(
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const scalar x1,
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const scalar x2
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) const
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{
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NotImplemented;
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return tmp<Field<Type>>(nullptr);
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}
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// ************************************************************************* //
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