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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2013-2026 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
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 "Explicit.H"
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
template<class CloudType>
Foam::PackingModels::Explicit<CloudType>::Explicit
(
const dictionary& dict,
CloudType& owner
)
:
PackingModel<CloudType>(dict, owner, typeName),
stressAverage_(nullptr),
correctionLimiting_
(
CorrectionLimitingMethod::New
(
this->typeDict().subDict(CorrectionLimitingMethod::typeName)
)
)
{}
template<class CloudType>
Foam::PackingModels::Explicit<CloudType>::Explicit
(
const Explicit<CloudType>& cm
)
:
PackingModel<CloudType>(cm),
stressAverage_(cm.stressAverage_, false),
correctionLimiting_(cm.correctionLimiting_, false)
{}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
template<class CloudType>
Foam::PackingModels::Explicit<CloudType>::~Explicit()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
template<class CloudType>
void Foam::PackingModels::Explicit<CloudType>::cacheFields(const bool store)
{
PackingModel<CloudType>::cacheFields(store);
if (store)
{
const fvMesh& mesh = this->owner().mesh();
const word& cloudName = this->owner().name();
const AveragingMethod<scalar>& volumeAverage =
mesh.lookupObject<AveragingMethod<scalar>>
(
cloudName + ":volumeAverage"
);
const AveragingMethod<scalar>& rhoAverage =
mesh.lookupObject<AveragingMethod<scalar>>
(
cloudName + ":rhoAverage"
);
const AveragingMethod<vector>& uAverage =
mesh.lookupObject<AveragingMethod<vector>>
(
cloudName + ":uAverage"
);
const AveragingMethod<scalar>& uSqrAverage =
mesh.lookupObject<AveragingMethod<scalar>>
(
cloudName + ":uSqrAverage"
);
volumeAverage_ = &volumeAverage;
uAverage_ = &uAverage;
stressAverage_.reset
(
AveragingMethod<scalar>::New
(
IOobject
(
cloudName + ":stressAverage",
this->owner().time().name(),
mesh
),
this->owner().solution().dict(),
mesh
).ptr()
);
stressAverage_() =
this->particleStressModel_->tau
(
*volumeAverage_,
rhoAverage,
uSqrAverage
)();
}
else
{
volumeAverage_ = nullptr;
uAverage_ = nullptr;
stressAverage_.clear();
}
}
template<class CloudType>
Foam::vector Foam::PackingModels::Explicit<CloudType>::velocityCorrection
(
typename CloudType::parcelType& p,
const scalar deltaT
) const
{
const tetIndices tetIs(p.currentTetIndices(this->owner().mesh()));
// interpolated quantities
const scalar alpha =
this->volumeAverage_->interpolate(p.coordinates(), tetIs);
const vector alphaGrad =
this->volumeAverage_->interpolateGrad(p.coordinates(), tetIs);
const vector uMean =
this->uAverage_->interpolate(p.coordinates(), tetIs);
// stress gradient
const vector tauGrad =
stressAverage_->interpolateGrad(p.coordinates(), tetIs);
// parcel relative velocity
const vector uRelative = p.U() - uMean;
// correction velocity
vector dU = Zero;
//// existing forces
// const scalar Re = p.Re(td);
// const typename CloudType::forceType& forces = this->owner().forces();
// const forceSuSp F =
// forces.calcCoupled(p, td, deltaT, p.mass(), Re, td.muc())
// + forces.calcNonCoupled(p, td, deltaT, p.mass(), Re, td.muc());
// correction velocity
if ((uRelative & alphaGrad) > 0)
{
dU = - deltaT*tauGrad/(p.rho()*alpha/* + deltaT*F.Sp()*/);
}
// apply the velocity limiters
return
correctionLimiting_->limitedVelocity
(
p.U(),
dU,
uMean
);
}
// ************************************************************************* //
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