objectiveMoment.H

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    Copyright (C) 2013-2019, 2022 FOSS GP
    Copyright (C) 2019 OpenCFD Ltd.
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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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Class
    Foam::objectives::objectiveMoment
 
Description
 
SourceFiles
    objectiveMoment.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef objectiveMoment_H
#define objectiveMoment_H
 
#include "objectiveIncompressible.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
namespace objectives
{
 
/*---------------------------------------------------------------------------*\
                       Class objectiveMoment Declaration
\*---------------------------------------------------------------------------*/
 
class objectiveMoment
:
    public objectiveIncompressible
{
    // Private data
 
        labelHashSet momentPatches_;
        vector momentDirection_;
        vector rotationCentre_;
        scalar Aref_;
        scalar lRef_;
        scalar rhoInf_;
        scalar UInf_;
        scalar invDenom_;
 
        // Store this in order to computed only once per objective call
        volSymmTensorField devReff_;
 
 
public:
 
    //- Runtime type information
    TypeName("moment");
 
 
    // Constructors
 
        //- from components
        objectiveMoment
        (
            const fvMesh& mesh,
            const dictionary& dict,
            const word& adjointSolverName,
            const word& primalSolverName
        );
 
 
    //- Destructor
    virtual ~objectiveMoment() = default;
 
 
    // Member Functions
 
        //- Return the objective function value
        scalar J();
 
        //- Update mean drag and lift values
        void update_meanValues();
 
        //- Update values to be added to the adjoint wall velocity
        void update_boundarydJdp();
 
        //- Update delta(n dS)/delta b multiplier
        void update_dSdbMultiplier();
 
        //- Update delta(x)/delta b multiplier
        void update_dxdbMultiplier();
 
        //- Update delta(x)/delta b multiplier coming directly from the
        //- objective
        void update_dxdbDirectMultiplier();
 
        //- Update dJ/dnut multiplier
        void update_boundarydJdnut();
 
        //- Update dJ/dGradU multiplier
        /* WIP
        void update_boundarydJdGradU();
        */
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace objectiveMoment
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //