sensitivitySurface.H

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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
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Class
    Foam::sensitivitySurface
 
Description
    Calculation of adjoint based sensitivities at wall faces
 
    Reference:
    \verbatim
        The computation of the sensitivity derivatives  follows the (E-)SI
        formulation of
 
            Kavvadias, I. S., Papoutsis-Kiachagias, E. M.,
            Giannakoglou, K. C. (2015).
            On the proper treatment of grid sensitivities in continuous adjoint
            methods for shape optimization.
            Journal of computational physics, 301, 1-18.
            https://doi.org/10.1016/j.jcp.2015.08.012
 
        whereas their smoothing based on the computation of the 'Sobolev
        gradient' is derived from
 
            Vassberg J. C., Jameson A. (2006).
            Aerodynamic Shape Optimization Part I: Theoretical Background.
            VKI Lecture Series, Introduction to Optimization and
            Multidisciplinary Design, Brussels, Belgium, 8 March, 2006.
    \endverbatim
 
SourceFiles
    sensitivitySurface.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef sensitivitySurfaceIncompressible_H
#define sensitivitySurfaceIncompressible_H
 
#include "sensitivitySurfacePoints.H"
#include "faMesh.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                  Class sensitivitySurface Declaration
\*---------------------------------------------------------------------------*/
 
class sensitivitySurface
:
    public sensitivitySurfacePoints
{
protected:
 
    // Protected data
 
        //- Smooth sensitivity derivatives based on a surface Laplace solver
        bool smoothSensitivities_;
 
        //- Return the complete vector of sensitivities
        bool returnVectorField_;
 
        //bool finalResultIncludesArea_;
 
 
    // Protected Member Functions
 
        //- Compute the size of the return field
        label computeFaceDerivativesSize(const bool computeVectorFieldSize);
 
        //- Smooth sensitivity derivatives based on the computation of the
        //- 'Sobolev gradient'
        void smoothSensitivities();
 
        //- Compute the physical smoothing radius based on the average boundary
        //- face 'length'
        scalar computeRadius(const faMesh& aMesh);
 
 
private:
 
    // Private Member Functions
 
        //- No copy construct
        sensitivitySurface(const sensitivitySurface&) = delete;
 
        //- No copy assignment
        void operator=(const sensitivitySurface&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("surface");
 
 
    // Constructors
 
        //- Construct from components
        sensitivitySurface
        (
            const fvMesh& mesh,
            const dictionary& dict,
            adjointSolver& adjointSolver
        );
 
 
    //- Destructor
    virtual ~sensitivitySurface() = default;
 
 
    // Member Functions
 
        //- Read controls and update solver pointers if necessary
        void read();
 
        //- Assemble sensitivities
        virtual void assembleSensitivities
        (
            autoPtr<designVariables>& designVars
        );
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //