BezierDesignVariables.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2007-2023 PCOpt/NTUA
    Copyright (C) 2013-2023 FOSS GP
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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.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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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
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Class
    Foam::BezierDesignVariables
 
Description
    Bezier design variables for shape optimisation
 
SourceFiles
    BezierDesignVariables.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef BezierDesignVariables_H
#define BezierDesignVariables_H
 
#include "shapeDesignVariables.H"
#include "Bezier.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                    Class BezierDesignVariables Decleration
\*---------------------------------------------------------------------------*/
 
class BezierDesignVariables
:
    public shapeDesignVariables
{
protected:
 
    // Protected Data Members
 
        //- The Bezier control points and auxiliary functions
        Bezier bezier_;
 
        //- Boundary movement due to the change in Bezier control points
        pointVectorField dx_;
 
 
    // Protected Member Functions
 
        //- Read bounds for design variables, if present
        void readBounds
        (
            autoPtr<scalar> lowerBoundPtr = nullptr,
            autoPtr<scalar> upperBoundPtr = nullptr
        );
 
        //- Set uniform bounds for all control points
        void setBounds(autoPtr<scalarField>& bounds, const vector& cpBounds);
 
        //- Transform the correction of design variables to control points'
        //- movement
        tmp<vectorField> computeBoundaryDisplacement
        (
            const scalarField& correction
        );
 
        //- Decompose varID to cpID and direction
        void decomposeVarID(label& cpI, label& dir, const label varID) const;
 
 
private:
 
    // Private Member Functions
 
        //- No copy construct
        BezierDesignVariables(const BezierDesignVariables&) = delete;
 
        //- No copy assignment
        void operator=(const BezierDesignVariables&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("Bezier");
 
 
    // Constructors
 
        //- Construct from components
        BezierDesignVariables
        (
            fvMesh& mesh,
            const dictionary& dict
        );
 
 
    //- Destructor
    virtual ~BezierDesignVariables() = default;
 
 
    // Member Functions
 
        //- Update design variables based on a given correction
        virtual void update(scalarField& correction);
 
        //- Compute eta if not set in the first step
        virtual scalar computeEta(scalarField& correction);
 
        //- Whether to use global sum when computing matrix-vector products
        //  in update methods
        virtual bool globalSum() const;
 
 
        // Fields related to sensitivity computations
 
            //- Get dxdb for given design variable and patch
            virtual tmp<vectorField> dxdbFace
            (
                const label patchI,
                const label varID
            ) const;
 
            //- Get dndb for given design variable and patch
            virtual tmp<vectorField> dndb
            (
                const label patchI,
                const label varID
            ) const;
 
            //- Get dSdb for given design variable and patch
            virtual tmp<vectorField> dSdb
            (
                const label patchI,
                const label varID
            ) const;
 
            //- Get dCdb for given design variable.
            //  Used for FI-based sensitivities
            virtual tmp<volVectorField> dCdb(const label varID) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //