PatchInjection.C

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    Copyright (C) 2015-2019 OpenCFD Ltd.
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    This file is part of OpenFOAM.
 
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#include "PatchInjection.H"
#include "TimeFunction1.H"
#include "distributionModel.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class CloudType>
Foam::PatchInjection<CloudType>::PatchInjection
(
    const dictionary& dict,
    CloudType& owner,
    const word& modelName
)
:
    InjectionModel<CloudType>(dict, owner, modelName, typeName),
    patchInjectionBase(owner.mesh(), this->coeffDict().getWord("patch")),
    duration_(this->coeffDict().getScalar("duration")),
    parcelsPerSecond_
    (
        this->coeffDict().getScalar("parcelsPerSecond")
    ),
    U0_(this->coeffDict().lookup("U0")),
    flowRateProfile_
    (
        TimeFunction1<scalar>
        (
            owner.db().time(),
            "flowRateProfile",
            this->coeffDict()
        )
    ),
    sizeDistribution_
    (
        distributionModel::New
        (
            this->coeffDict().subDict("sizeDistribution"),
            owner.rndGen()
        )
    )
{
    duration_ = owner.db().time().userTimeToTime(duration_);
 
    patchInjectionBase::updateMesh(owner.mesh());
 
    // Set total volume/mass to inject
    this->volumeTotal_ = flowRateProfile_.integrate(0.0, duration_);
}
 
 
template<class CloudType>
Foam::PatchInjection<CloudType>::PatchInjection
(
    const PatchInjection<CloudType>& im
)
:
    InjectionModel<CloudType>(im),
    patchInjectionBase(im),
    duration_(im.duration_),
    parcelsPerSecond_(im.parcelsPerSecond_),
    U0_(im.U0_),
    flowRateProfile_(im.flowRateProfile_),
    sizeDistribution_(im.sizeDistribution_.clone())
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
template<class CloudType>
Foam::PatchInjection<CloudType>::~PatchInjection()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class CloudType>
void Foam::PatchInjection<CloudType>::updateMesh()
{
    patchInjectionBase::updateMesh(this->owner().mesh());
}
 
 
template<class CloudType>
Foam::scalar Foam::PatchInjection<CloudType>::timeEnd() const
{
    return this->SOI_ + duration_;
}
 
 
template<class CloudType>
Foam::label Foam::PatchInjection<CloudType>::parcelsToInject
(
    const scalar time0,
    const scalar time1
)
{
    if ((time0 >= 0.0) && (time0 < duration_))
    {
        scalar nParcels = (time1 - time0)*parcelsPerSecond_;
        Random& rnd = this->owner().rndGen();
        scalar rndPos = rnd.globalPosition(scalar(0), scalar(1));
        label nParcelsToInject = floor(nParcels);
 
        // Inject an additional parcel with a probability based on the
        // remainder after the floor function
        if
        (
            nParcelsToInject > 0
         && (nParcels - scalar(nParcelsToInject) > rndPos)
        )
        {
            ++nParcelsToInject;
        }
 
        return nParcelsToInject;
    }
 
    return 0;
}
 
 
template<class CloudType>
Foam::scalar Foam::PatchInjection<CloudType>::volumeToInject
(
    const scalar time0,
    const scalar time1
)
{
    if ((time0 >= 0.0) && (time0 < duration_))
    {
        return flowRateProfile_.integrate(time0, time1);
    }
 
    return 0.0;
}
 
 
template<class CloudType>
void Foam::PatchInjection<CloudType>::setPositionAndCell
(
    const label,
    const label,
    const scalar,
    vector& position,
    label& cellOwner,
    label& tetFacei,
    label& tetPti
)
{
    patchInjectionBase::setPositionAndCell
    (
        this->owner().mesh(),
        this->owner().rndGen(),
        position,
        cellOwner,
        tetFacei,
        tetPti
    );
}
 
 
template<class CloudType>
void Foam::PatchInjection<CloudType>::setProperties
(
    const label,
    const label,
    const scalar,
    typename CloudType::parcelType& parcel
)
{
    // set particle velocity
    parcel.U() = U0_;
 
    // set particle diameter
    parcel.d() = sizeDistribution_->sample();
}
 
 
template<class CloudType>
bool Foam::PatchInjection<CloudType>::fullyDescribed() const
{
    return false;
}
 
 
template<class CloudType>
bool Foam::PatchInjection<CloudType>::validInjection(const label)
{
    return true;
}
 
 
// ************************************************************************* //