particleDistribution.H

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/*---------------------------------------------------------------------------*\
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-------------------------------------------------------------------------------
    Copyright (C) 2016-2022 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.
 
    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/>.
 
Class
    Foam::functionObjects::particleDistribution
 
Group
    grpFieldFunctionObjects
 
Description
    Generates a particle distribution for lagrangian data at a given time.
 
    Operands:
    \table
      Operand        | Type | Location
      input          | -    | -
      output file    | dat  | postProcessing/<FO>/<time>/file
      output field   | -    | -
    \endtable
 
Usage
    Minimal example by using \c system/controlDict.functions:
    \verbatim
    particleDistributionFO
    {
        // Mandatory entries
        type            particleDistribution;
        libs            (fieldFunctionObjects);
        cloud           <word>;
        nameVsBinWidth
        (
            (d 0.1)
            (U 10)
        );
        setFormat   <word>;          // ensight, vtk, raw
 
        // Optional entries
        tagField    <word>;
 
        // Inherited entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property     | Description                        | Type | Reqd  | Deflt
      type         | Type name: particleDistribution    | word |  yes  | -
      libs         | Library name: fieldFunctionObjects | word |  yes  | -
      cloud        | Name of cloud to process           | word |  yes  | -
      nameVsBinWidth | List of cloud field-bin width | wordHashTable | yes | -
      setFormat      | Output format                 | word          |  yes  | -
      tagField | Name of cloud field to use group particles | word | no | none
    \endtable
 
    The inherited entries are elaborated in:
      - \link functionObject.H \endlink
      - \link writeFile.H \endlink
 
SourceFiles
    particleDistribution.C
    particleDistributionTemplates.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_functionObjects_particleDistribution_H
#define Foam_functionObjects_particleDistribution_H
 
#include "fvMeshFunctionObject.H"
#include "writeFile.H"
#include "scalarField.H"
#include "Random.H"
#include "Tuple2.H"
#include "coordSetWriter.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace functionObjects
{
 
/*---------------------------------------------------------------------------*\
                    Class particleDistribution Declaration
\*---------------------------------------------------------------------------*/
 
class particleDistribution
:
    public functionObjects::fvMeshFunctionObject,
    public writeFile
{
protected:
 
    // Protected Data
 
        //- Cloud name
        word cloudName_;
 
        //- Tag field name - used to filter the particles into groups
        word tagFieldName_;
 
        //- Random number generator - used by distribution models
        Random rndGen_;
 
        //- List of field name vs. bin width
        List<Tuple2<word, scalar>> nameVsBinWidth_;
 
        //- Writer
        mutable autoPtr<coordSetWriter> writerPtr_;
 
 
    // Protected Member Functions
 
        //- Generate the distribution
        void generateDistribution
        (
            const word& fieldName,
            const scalarField& field,
            const scalar binWidth,
            const label tag = -1
        );
 
        // Helper function to retrieve the particle data
        template<class Type>
        bool processField
        (
            const objectRegistry& obr,
            const label fieldi,
            const List<DynamicList<label>>& addr
        );
 
 
public:
 
    //- Runtime type information
    TypeName("particleDistribution");
 
 
    // Constructors
 
        //- Construct from name, Time and dictionary
        particleDistribution
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );
 
        //- No copy construct
        particleDistribution(const particleDistribution&) = delete;
 
        //- No copy assignment
        void operator=(const particleDistribution&) = delete;
 
 
    //- Destructor
    virtual ~particleDistribution() = default;
 
 
    // Member Functions
 
        //- Read the function-object dictionary
        virtual bool read(const dictionary& dict);
 
        //- Execute the function-object operations
        virtual bool execute();
 
        //- Write the function-object results
        virtual bool write();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace functionObjects
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "particleDistributionTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //