timeVaryingMappedFixedValuePointPatchField.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2022 OpenCFD Ltd.
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    This file is part of OpenFOAM.

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Class
    Foam::timeVaryingMappedFixedValuePointPatchField

Description
    A time-varying form of a mapped fixed value boundary condition.

Usage
    \table
        Property     | Description                      | Required | Default
        setAverage   | Use average value                | no | false
        perturb      | Perturb points for regular geometries | no | 1e-5
        points       | Name of points file              | no | points
        fieldTable   | Alternative field name to sample | no | this field name
        mapMethod    | Type of mapping                  | no | planar
        offset       | Offset to mapped values          | no | Zero
    \endtable

See also
    Foam::timeVaryingMappedFixedValueFvPatchField

SourceFiles
    timeVaryingMappedFixedValuePointPatchField.C

\*---------------------------------------------------------------------------*/

#ifndef Foam_timeVaryingMappedFixedValuePointPatchField_H
#define Foam_timeVaryingMappedFixedValuePointPatchField_H

#include "fixedValuePointPatchField.H"
#include "Function1.H"
#include "Pair.H"
#include "instantList.H"
#include "pointToPointPlanarInterpolation.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

/*---------------------------------------------------------------------------*\
        Class timeVaryingMappedFixedValuePointPatchField Declaration
\*---------------------------------------------------------------------------*/

template<class Type>
class timeVaryingMappedFixedValuePointPatchField
:
    public fixedValuePointPatchField<Type>
{
    // Private Data

        //- If true adjust the mapped field to maintain average value
        bool setAverage_;

        //- Fraction of perturbation (fraction of bounding box) to add
        scalar perturb_;

        //- Name of the field data table, defaults to the name of the field
        word fieldTableName_;

        //- Name of points file (default: "points")
        word pointsName_;

        //- Interpolation scheme to use (default is empty == "planar")
        word mapMethod_;

        //- 2D interpolation (for 'planar' mapMethod)
        autoPtr<pointToPointPlanarInterpolation> mapperPtr_;

        //- List of boundaryData time directories
        instantList sampleTimes_;

        //- The first/second sample indices in sampleTimes
        labelPair sampleIndex_;

        //- The average values at first/second sampleIndex_ (if setAverage)
        Pair<Type> sampleAverage_;

        //- The interpolated values at first/second sampleIndex_
        Pair<Field<Type>> sampleValues_;

        //- Time varying offset values to interpolated data
        autoPtr<Function1<Type>> offset_;


    // Private Member Functions

        //- Find boundary data between time 't' and interpolate
        void checkTable(const scalar t);

        //- Update field and average value using interpolation at
        //- given instant index
        void updateSampledValues
        (
            const label sampleIndex,
            Field<Type>& field,
            Type& avg
        ) const;


public:

    //- Runtime type information
    TypeName("timeVaryingMappedFixedValue");


    // Constructors

        //- Construct from patch and internal field
        timeVaryingMappedFixedValuePointPatchField
        (
            const pointPatch&,
            const DimensionedField<Type, pointMesh>&
        );

        //- Construct from patch, internal field and dictionary
        timeVaryingMappedFixedValuePointPatchField
        (
            const pointPatch&,
            const DimensionedField<Type, pointMesh>&,
            const dictionary&
        );

        //- Construct by mapping given patch field onto a new patch
        timeVaryingMappedFixedValuePointPatchField
        (
            const timeVaryingMappedFixedValuePointPatchField<Type>&,
            const pointPatch&,
            const DimensionedField<Type, pointMesh>&,
            const pointPatchFieldMapper&
        );

        //- Construct as copy
        timeVaryingMappedFixedValuePointPatchField
        (
            const timeVaryingMappedFixedValuePointPatchField<Type>&
        );

        //- Construct and return a clone
        virtual autoPtr<pointPatchField<Type>> clone() const
        {
            return autoPtr<pointPatchField<Type>>
            (
                new timeVaryingMappedFixedValuePointPatchField<Type>(*this)
            );
        }

        //- Construct as copy setting internal field reference
        timeVaryingMappedFixedValuePointPatchField
        (
            const timeVaryingMappedFixedValuePointPatchField<Type>&,
            const DimensionedField<Type, pointMesh>&
        );

        //- Construct and return a clone setting internal field reference
        virtual autoPtr<pointPatchField<Type>> clone
        (
            const DimensionedField<Type, pointMesh>& iF
        ) const
        {
            return autoPtr<pointPatchField<Type>>
            (
                new timeVaryingMappedFixedValuePointPatchField<Type>(*this, iF)
            );
        }


    // Member Functions

        // Mapping functions

            //- Map (and resize as needed) from self given a mapping object
            virtual void autoMap
            (
                const pointPatchFieldMapper&
            );

            //- Reverse map the given PointPatchField onto
            //  this PointPatchField
            virtual void rmap
            (
                const pointPatchField<Type>&,
                const labelList&
            );


        // Evaluation functions

            //- Update the coefficients associated with the patch field
            virtual void updateCoeffs();


        //- Write
        virtual void write(Ostream&) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#ifdef NoRepository
    #include "timeVaryingMappedFixedValuePointPatchField.C"
#endif

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //