externalFileSource.H

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/*---------------------------------------------------------------------------*\
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-------------------------------------------------------------------------------
    Copyright (C) 2019-2025 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.
 
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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::fa::externalFileSource
 
Group
    grpFaOptionsSources
 
Description
    Applies sources on a specified field within a specified region
    by using an external table file.
 
Usage
    Minimal example by using \c constant/faOptions:
    \verbatim
    externalFileSource1
    {
        // Mandatory entries (unmodifiable)
        type                externalFileSource;
        fieldName           <fieldName>;
        tableName           <tableFileName.dat>;
 
        // Mandatory/Optional (inherited) entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property  | Description                    | Type  | Reqd | Dflt
      type      | Type name: externalFileSource  | word  | yes  | -
      fieldName | Name of operand field          | word  | yes  | -
      tableName | Name of operand table file     | word  | yes  | -
      store     | Register external field 'pExt' | bool  | no   | false
    \endtable
 
    The inherited entries are elaborated in:
     - \link faOption.H \endlink
     - \link faceSetOption.H \endlink
 
See also
  - Foam::PatchFunction1Types
 
SourceFiles
    externalFileSource.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_fa_externalFileSource_H
#define Foam_fa_externalFileSource_H
 
#include "areaFields.H"
#include "MappedFile.H"
#include "faceSetOption.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace fa
{
 
/*---------------------------------------------------------------------------*\
                        Class externalFileSource Declaration
\*---------------------------------------------------------------------------*/
 
class externalFileSource
:
    public fa::faceSetOption
{
    // Private Data
 
        //- Name of the field to apply this source
        word fieldName_;
 
        //- Name of the table
        word tableName_;
 
        //- External pressure field
        DimensionedField<scalar, areaMesh> pExt_;
 
        //- Current time index (used for updating)
        label curTimeIndex_;
 
        //- Mapped data from file
        PtrList<PatchFunction1Types::MappedFile<scalar>> mapping_;
 
 
    // Private Member Functions
 
        //- Update the pExt_ mapping
        void updateMapping();
 
 
public:
 
    //- Runtime type information
    TypeName("externalFileSource");
 
 
    // Constructors
 
        //- Construct from explicit source name and mesh
        externalFileSource
        (
            const word& sourceName,
            const word& modelType,
            const dictionary& dict,
            const fvMesh& mesh,
            const word& defaultAreaName = word()
        );
 
        //- No copy construct
        externalFileSource(const externalFileSource&) = delete;
 
        //- No copy assignment
        void operator=(const externalFileSource&) = delete;
 
 
    //- Destructor
    virtual ~externalFileSource() = default;
 
 
    // Member Functions
 
        // Evaluation
 
            //- Add explicit contribution to compressible momentum equation
            virtual void addSup
            (
                const areaScalarField& rho,
                faMatrix<scalar>& eqn,
                const label fieldi
            );
 
 
        // IO
 
            //- Read source dictionary
            virtual bool read(const dictionary& dict);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fa
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //