cellPoint_LagrangianAverage.H

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License
    This file is part of OpenFOAM.
 
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    the Free Software Foundation, either version 3 of the License, or
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Class
    Foam::LagrangianAverage
 
Description
    Lagrangian averaging process in which values are averaged onto the mesh
    cell-centres and points using the basis functions associated with the
    tetrahedral decomposition. Interpolation back to the Lagrangian points is
    then done with the same basis functions.
 
SourceFiles
    cellPoint_LagrangianAverage.C
    cellPoint_LagrangianAverages.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef cellPoint_LagrangianAverage_H
#define cellPoint_LagrangianAverage_H
 
#include "LagrangianAverage.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class polyMesh;
 
namespace LagrangianAverages
{
 
/*---------------------------------------------------------------------------*\
                      Class LagrangianAverage Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class cellPoint
:
    public LagrangianAverage<Type>
{
private:
 
    // Private Classes
 
        //- Data structure for an average
        struct data
        {
            //- Map from the cell to the cell average
            List<label> cellCellAvg_;
 
            //- Map from the point to the point average
            List<label> pointPointAvg_;
 
            //- Map from the cell average to the cell
            DynamicList<label> cellAvgCell_;
 
            //- Map from the point average to the point
            DynamicList<label> pointAvgPoint_;
 
            //- Number of samples in each cell average
            DynamicList<label> cellAvgCount_;
 
            //- Number of samples in each point average
            DynamicList<label> pointAvgCount_;
 
            //- Weight sums for each cell average
            autoPtr<DynamicList<scalar>> cellAvgWeightSumPtr_;
 
            //- Weight sums for each point average
            autoPtr<DynamicList<scalar>> pointAvgWeightSumPtr_;
 
            //- Value sums for each cell average
            DynamicList<Type> cellAvgSum_;
 
            //- Value sums for each point average
            DynamicList<Type> pointAvgSum_;
 
            //- Construct given a number of cells and points and a flag to
            //  specify whether or not weight sums need to be stored
            data
            (
                const label nCells,
                const label nPoints,
                const bool hasWeightSum
            );
        };
 
 
    // Private Data
 
        //- Constant cell weight sums. E.g., the volume of the cell basis
        //  function. Might be empty.
        const autoPtr<Field<scalar>> cellWeightSumPtr_;
 
        //- Constant point weight sums. E.g., the volume of the point basis
        //  function. Might be empty.
        const autoPtr<Field<scalar>> pointWeightSumPtr_;
 
        //- Base data
        data data_;
 
        //- Flag to indicate whether or not difference data is available
        bool dDataIsValid_;
 
        //- Difference data for correction later
        data dData_;
 
 
    // Private Member Functions
 
        //-  Calculate a volume-weighted sum over the cells
        template<class CellWeight>
        static tmp<Field<scalar>> cellVolumeWeightedSum
        (
            const polyMesh& pMesh,
            const CellWeight& cellWeight
        );
 
        //-  Calculate a volume-weighted sum over the points
        static tmp<Field<scalar>> cellWeightSum
        (
            const polyMesh& pMesh,
            const Field<scalar>& weightSum
        );
 
        //-  Calculate the cell constant weight sum
        template<class CellWeight>
        static tmp<Field<scalar>> pointVolumeWeightedSum
        (
            const polyMesh& pMesh,
            const CellWeight& cellWeight
        );
 
        //-  Calculate the point constant weight sum
        static tmp<Field<scalar>> pointWeightSum
        (
            const polyMesh& pMesh,
            const Field<scalar>& weightSum
        );
 
        //- Remove all values from the average data
        static void clear(data& d);
 
        //- Remove values from the cell average data
        static void removeFromCells
        (
            const LagrangianSubSubField<scalar>& weight,
            const LagrangianSubSubField<Type>& psi,
            data& d
        );
 
        //- Add values to the cell average data
        static void addToCells
        (
            const LagrangianSubSubField<scalar>& weight,
            const LagrangianSubSubField<Type>& psi,
            data& d
        );
 
        //- Add values to the point average data
        static void addToPoints
        (
            const LagrangianSubSubField<scalar>& weight,
            const LagrangianSubSubField<Type>& psi,
            data& d
        );
 
        //- Remove values from the point average data
        static void removeFromPoints(const data& dd, data& d);
 
        //- Add values to the point average data
        static void addToPoints(const data& dd, data& d);
 
        //- Interpolate into a sub-field, where possible. Calling code deals
        //  with default values where no elements are available to interpolate.
        virtual void interpolate(LagrangianSubField<Type>& result) const;
 
 
public:
 
    //- Runtime type information
    TypeName("cellPoint");
 
 
    // Constructors
 
        //- Construct with a name, for a mesh and with given dimensions
        cellPoint
        (
            const word& name,
            const LagrangianMesh& mesh,
            const dimensionSet& dimensions,
            const Field<scalar>& weightSum
        );
 
 
    //- Destructor
    virtual ~cellPoint();
 
 
    // Member Functions
 
        //- Remove weighted values from the average
        virtual void remove
        (
            const LagrangianSubSubField<scalar>& weight,
            const LagrangianSubSubField<Type>& psi
        );
 
        //- Add weighted values to the average
        virtual void add
        (
            const LagrangianSubSubField<scalar>& weight,
            const LagrangianSubSubField<Type>& psi,
            const bool cache
        );
 
        //- Correct weighted values in the average
        virtual void correct
        (
            const LagrangianSubSubField<scalar>& weight,
            const LagrangianSubSubField<Type>& psi,
            const bool cache
        );
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace LagrangianAverages
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "cellPoint_LagrangianAverage.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //