interRegionHeatTransferModel.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2020 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
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::fv::interRegionHeatTransferModel
 
Group
    grpFvOptionsSources
 
Description
    Intermediate class for handling inter-region heat exchanges.
 
    The derived classes must provide the heat transfer
    coefficients (htc) which is used as follows in the energy equation.
 
    \f[
        -htc*Tmapped + Sp(htc, T)
    \f]
 
Usage
    Minimal example by using \c constant/fvOptions:
    \verbatim
    <userDefinedName1>
    {
        // Mandatory/Optional (inherited) entries
        ...
 
        // Mandatory entries (unmodifiable)
        fields          (<field1> <field2> ... <fieldN>);
        nbrModel        <nbrModelName>;
        semiImplicit    true;
 
        // Optional entries (unmodifiable)
        T               <Tname>;
        Tnbr            <TnbrName>;
 
        // Mandatory/Optional (derived) entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property  | Description                             | Type  | Reqd | Dflt
      nbrModel  | Name of the model in the neighbour mesh | word  | yes  | -
      fields    | Names of operand fields              | wordList | yes  | -
      semiImplicit | Flag to activate semi-implicit coupling | bool | yes | -
      T         | Name of operand temperature field       | word  | no   | T
      Tnbr      | Name of operand neighbour temperature field | word | no | T
    \endtable
 
    The inherited entries are elaborated in:
     - \link interRegionOption.H \endlink
 
See also
  - Foam::fv::constantHeatTransfer
  - Foam::fv::tabulatedHeatTransfer
  - Foam::fv::tabulatedNTUHeatTransfer
  - Foam::fv::variableHeatTransfer
 
SourceFiles
    interRegionHeatTransferModel.C
    interRegionHeatTransferModelTemplates.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef interRegionHeatTransferModel_H
#define interRegionHeatTransferModel_H
 
#include "interRegionOption.H"
#include "volFields.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace fv
{
 
/*---------------------------------------------------------------------------*\
                Class interRegionHeatTransferModel Declaration
\*---------------------------------------------------------------------------*/
 
class interRegionHeatTransferModel
:
    public interRegionOption
{
protected:
 
    // Protected Data
 
        //- Name of the model in the neighbour mesh
        word nbrModelName_;
 
        //- Pointer to neighbour interRegionHeatTransferModel
        interRegionHeatTransferModel* nbrModel_;
 
        //- Flag to determine the first iteration
        bool firstIter_;
 
        //- Flag to activate semi-implicit coupling
        bool semiImplicit_;
 
        //- Time index - used for updating htc
        label timeIndex_;
 
        //- Heat transfer coefficient [W/m2/k] times area/volume [1/m]
        volScalarField htc_;
 
        //- Name of operand temperature field
        word TName_;
 
        //- Name of operand neighbour temperature field
        word TNbrName_;
 
 
    // Protected Member Functions
 
        //- Set the neighbour interRegionHeatTransferModel
        void setNbrModel();
 
        //- Inherit correct from interRegionOption
        using interRegionOption::correct;
 
        //- Correct to calculate the inter-region heat transfer coefficient
        void correct();
 
        //- Interpolate field with nbrModel specified
        template<class Type>
        tmp<Field<Type>> interpolate
        (
            const interRegionHeatTransferModel& nbrModel,
            const Field<Type>& field
        ) const;
 
        //- Interpolate field without nbrModel specified
        template<class Type>
        tmp<Field<Type>> interpolate
        (
            const Field<Type>& field
        ) const;
 
        //- Interpolate field with nbrModel specified
        template<class Type>
        void interpolate
        (
            const interRegionHeatTransferModel& nbrModel,
            const Field<Type>& field,
            Field<Type>& result
        ) const;
 
        //- Interpolate field without nbrModel specified
        template<class Type>
        void interpolate
        (
            const Field<Type>& field,
            Field<Type>& result
        ) const;
 
 
public:
 
    //- Runtime type information
    TypeName("interRegionHeatTransferModel");
 
 
    // Constructors
 
        //- Construct from dictionary
        interRegionHeatTransferModel
        (
            const word& name,
            const word& modelType,
            const dictionary& dict,
            const fvMesh& mesh
        );
 
 
    //- Destructor
    virtual ~interRegionHeatTransferModel() = default;
 
 
    // Member Functions
 
        // Access
 
            //- Return const access to the neighbour region name
            inline const word& nbrRegionName() const;
 
            //- Return const access to the mapToMap pointer
            inline const meshToMesh& meshInterp() const;
 
            //- Return the heat transfer coefficient
            inline const volScalarField& htc() const;
 
            //- Return const access to the neighbour model
            inline const interRegionHeatTransferModel& nbrModel() const;
 
            //- Return access to the neighbour model
            inline interRegionHeatTransferModel& nbrModel();
 
            //- Source term to energy equation
            virtual void addSup
            (
                fvMatrix<scalar>& eqn,
                const label fieldi
            );
 
            //- Source term to compressible energy equation
            virtual void addSup
            (
                const volScalarField& rho,
                fvMatrix<scalar>& eqn,
                const label fieldi
            );
 
            //- Calculate heat transfer coefficient
            virtual void calculateHtc() = 0;
 
 
        // IO
 
            //- Read source dictionary
            virtual bool read(const dictionary& dict);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fv
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "interRegionHeatTransferModelI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "interRegionHeatTransferModelTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //