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