InjectionModel.H

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    Copyright (C) 2018 OpenCFD Ltd.
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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.
 
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    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
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Class
    Foam::InjectionModel
 
Group
    grpLagrangianIntermediateInjectionSubModels
 
Description
    Templated injection model class.
 
    The injection model nominally describes the parcel:
    - position
    - diameter
    - velocity
    In this case, the fullyDescribed() flag should be set to 0 (false). When
    the parcel is then added to the cloud, the remaining properties are
    populated using values supplied in the constant properties.
 
    If, however, all of a parcel's properties are described in the model, the
    fullDescribed() flag should be set to 1 (true).
 
 
SourceFiles
    InjectionModel.C
    InjectionModelNew.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef InjectionModel_H
#define InjectionModel_H
 
#include "IOdictionary.H"
#include "autoPtr.H"
#include "runTimeSelectionTables.H"
#include "CloudSubModelBase.H"
#include "vector.H"
#include "TimeFunction1.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                       Class InjectionModel Declaration
\*---------------------------------------------------------------------------*/
 
template<class CloudType>
class InjectionModel
:
    public CloudSubModelBase<CloudType>
{
public:
 
    //- Convenience typedef for parcelType
    typedef typename CloudType::parcelType parcelType;
 
 
    // Enumerations
 
        //- Parcel basis representation options
        //- i.e constant number of particles OR constant mass per parcel
        enum parcelBasis
        {
            pbNumber,
            pbMass,
            pbFixed
        };
 
 
protected:
 
    // Protected data
 
        // Global injection properties
 
            //- Start of injection [s]
            scalar SOI_;
 
            //- Total volume of particles introduced by this injector [m^3]
            //- Note: scaled to ensure massTotal is achieved
            scalar volumeTotal_;
 
            //- Total mass to inject [kg]
            scalar massTotal_;
 
            //- Mass flow rate profile for steady calculations
            TimeFunction1<scalar> massFlowRate_;
 
            //- Total mass injected to date [kg]
            scalar massInjected_;
 
 
        // Counters
 
            //- Number of injections counter
            label nInjections_;
 
            //- Running counter of total number of parcels added
            label parcelsAddedTotal_;
 
 
        // Injection properties per Lagrangian time step
 
            //- Parcel basis enumeration
            parcelBasis parcelBasis_;
 
            //- nParticle to assign to parcels when the 'fixed' basis
            //- is selected
            scalar nParticleFixed_;
 
            //- Continuous phase time at start of injection time step [s]
            scalar time0_;
 
            //- Time at start of injection time step [s]
            scalar timeStep0_;
 
            //- Minimum number of particles used to represent each parcel
            //- default = 1
            scalar minParticlesPerParcel_;
 
            //- Volume that should have been injected, but would lead to
            //- less than minParticlesPerParcel_ particle per parcel
            scalar delayedVolume_;
 
            //- Optional injector ID
            label injectorID_;
 
 
    // Protected Member Functions
 
        //- Additional flag to identify whether or not injection of parcelI is
        //  permitted
        virtual bool validInjection(const label parcelI) = 0;
 
        //- Determine properties for next time step/injection interval
        virtual bool prepareForNextTimeStep
        (
            const scalar time,
            label& newParcels,
            scalar& newVolumeFraction
        );
 
        //- Find the cell that contains the supplied position
        //  Will modify position slightly towards the owner cell centroid to
        //  ensure that it lies in a cell and not edge/face
        virtual bool findCellAtPosition
        (
            label& celli,
            label& tetFacei,
            label& tetPti,
            vector& position,
            bool errorOnNotFound = true
        );
 
        //- Set number of particles to inject given parcel properties
        virtual scalar setNumberOfParticles
        (
            const label parcels,
            const scalar volumeFraction,
            const scalar diameter,
            const scalar rho
        );
 
        //- Post injection checks
        virtual void postInjectCheck
        (
            const label parcelsAdded,
            const scalar massAdded
        );
 
 
public:
 
    //- Runtime type information
    TypeName("injectionModel");
 
    //- Declare runtime constructor selection table
    declareRunTimeSelectionTable
    (
        autoPtr,
        InjectionModel,
        dictionary,
        (
            const dictionary& dict,
            CloudType& owner,
            const word& modelType
        ),
        (dict, owner, modelType)
    );
 
 
    // Constructors
 
        //- Construct null from owner
        InjectionModel(CloudType& owner);
 
        //- Construct from dictionary
        InjectionModel
        (
            const dictionary& dict,
            CloudType& owner,
            const word& modelName,
            const word& modelType
        );
 
        //- Construct copy
        InjectionModel(const InjectionModel<CloudType>& im);
 
        //- Construct and return a clone
        virtual autoPtr<InjectionModel<CloudType>> clone() const = 0;
 
 
    //- Destructor
    virtual ~InjectionModel();
 
 
    // Selectors
 
        //- Selector with lookup from dictionary
        static autoPtr<InjectionModel<CloudType>> New
        (
            const dictionary& dict,
            CloudType& owner
        );
 
        //- Selector with name and type
        static autoPtr<InjectionModel<CloudType>> New
        (
            const dictionary& dict,
            const word& modelName,
            const word& modelType,
            CloudType& owner
        );
 
 
    // Member Functions
 
        // Mapping
 
            //- Update mesh
            virtual void updateMesh();
 
 
        // Global information
 
            //- Return the start-of-injection time
            inline scalar timeStart() const;
 
            //- Return the total volume to be injected across the event
            inline scalar volumeTotal() const;
 
            //- Return mass of particles to introduce
            inline scalar massTotal() const;
 
            //- Return mass of particles injected (cumulative)
            inline scalar massInjected() const;
 
            //- Return injectorID
            inline label injectorID() const;
 
            //- Return the end-of-injection time
            virtual scalar timeEnd() const = 0;
 
            //- Number of parcels to introduce relative to SOI
            virtual label parcelsToInject
            (
                const scalar time0,
                const scalar time1
            ) = 0;
 
            //- Volume of parcels to introduce relative to SOI
            virtual scalar volumeToInject
            (
                const scalar time0,
                const scalar time1
            ) = 0;
 
            //- Return the average parcel mass over the injection period
            virtual scalar averageParcelMass();
 
 
            // Counters
 
                //- Return the number of injections
                inline label nInjections() const;
 
                //- Return the total number parcels added
                inline label parcelsAddedTotal() const;
 
 
        // Per-injection event functions
 
            //- Main injection loop
            template<class TrackCloudType>
            void inject
            (
                TrackCloudType& cloud,
                typename CloudType::parcelType::trackingData& td
            );
 
            //- Main injection loop - steady-state
            template<class TrackCloudType>
            void injectSteadyState
            (
                TrackCloudType& cloud,
                typename CloudType::parcelType::trackingData& td,
                const scalar trackTime
            );
 
 
        // Injection geometry
 
            //- Set the injection position and owner cell, tetFace and tetPt
            virtual void setPositionAndCell
            (
                const label parcelI,
                const label nParcels,
                const scalar time,
                vector& position,
                label& cellOwner,
                label& tetFacei,
                label& tetPti
            ) = 0;
 
            //- Set the parcel properties
            virtual void setProperties
            (
                const label parcelI,
                const label nParcels,
                const scalar time,
                parcelType& parcel
            ) = 0;
 
            //- Flag to identify whether model fully describes the parcel
            virtual bool fullyDescribed() const = 0;
 
 
        // I-O
 
            //- Write injection info to stream
            virtual void info(Ostream& os);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#define makeInjectionModel(CloudType)                                          \
                                                                               \
    typedef Foam::CloudType::kinematicCloudType kinematicCloudType;            \
    defineNamedTemplateTypeNameAndDebug                                        \
    (                                                                          \
        Foam::InjectionModel<kinematicCloudType>,                              \
        0                                                                      \
    );                                                                         \
                                                                               \
    namespace Foam                                                             \
    {                                                                          \
        defineTemplateRunTimeSelectionTable                                    \
        (                                                                      \
            InjectionModel<kinematicCloudType>,                                \
            dictionary                                                         \
        );                                                                     \
    }
 
 
#define makeInjectionModelType(SS, CloudType)                                  \
                                                                               \
    typedef Foam::CloudType::kinematicCloudType kinematicCloudType;            \
    defineNamedTemplateTypeNameAndDebug(Foam::SS<kinematicCloudType>, 0);      \
                                                                               \
    Foam::InjectionModel<kinematicCloudType>::                                 \
        adddictionaryConstructorToTable<Foam::SS<kinematicCloudType>>          \
            add##SS##CloudType##kinematicCloudType##ConstructorToTable_;
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "InjectionModelI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "InjectionModel.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //