KirchhoffShell.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2019-2021 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
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Class
    Foam::regionFaModels::KirchhoffShell
 
Description
 
Usage
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        // Mandatory/Optional entries
        ...
 
        // Mandatory entries
        vibrationShellModel   KirchhoffShell;
        f0                    0.04;
        f1                    0.0;
        f2                    0.0;
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property   | Description                         | Type  | Reqd | Deflt
      vibrationShellModel | Type name: KirchhoffShell  | word  | yes  | -
      f0         | Damping coefficient [1/s]           | scalar | yes | -
      f1         | Damping coefficient [1/s]           | scalar | yes | -
      f2         | Damping coefficient [1/s]           | scalar | yes | -
    \endtable
 
    The inherited entries are elaborated in:
      - \link vibrationShellModel.H \endlink
 
SourceFiles
    KirchhoffShell.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef KirchhoffShell_H
#define KirchhoffShell_H
 
#include "volFieldsFwd.H"
#include "vibrationShellModel.H"
#include "faMesh.H"
#include "faCFD.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace regionModels
{
 
/*---------------------------------------------------------------------------*\
                        Class KirchhoffShell Declaration
\*---------------------------------------------------------------------------*/
 
class KirchhoffShell
:
    public vibrationShellModel
{
    // Private Data
 
        //- Damping coefficients [1/s]
        dimensionedScalar f0_;
        dimensionedScalar f1_;
        dimensionedScalar f2_;
 
 
    // Private Member Functions
 
        //- Initialise KirchhoffShell
        bool init(const dictionary& dict);
 
 
protected:
 
    // Protected Data
 
        // Solution parameters
 
            //- Number of non orthogonal correctors
            label nNonOrthCorr_;
 
            //- Sub cycles
            label nSubCycles_;
 
 
        // Source term fields
 
            //- External surface source [Pa]
            areaScalarField ps_;
 
            //- Thickness [m]
            areaScalarField h_;
 
            //- Laplace of the displacement
            areaScalarField laplaceW_;
 
            //- Laplace of the Laplace for the displacement
            areaScalarField laplace2W_;
 
            //- Cache w.oldTime() in sub-cycling
            areaScalarField w0_;
 
            //- Cache w.oldTime.oldTime() in sub-cycling
            areaScalarField w00_;
 
            //- Cache laplaceW.oldTime() in sub-cycling
            areaScalarField laplaceW0_;
 
            //- Cache laplace2.oldTime() in sub-cycling
            areaScalarField laplace2W0_;
 
 
    // Protected Member Functions
 
        // Equations
 
            //- Solve energy equation
            void solveDisplacement();
 
 
public:
 
    //- Runtime type information
    TypeName("KirchhoffShell");
 
 
    // Constructors
 
        //- Construct from components and dict
        KirchhoffShell
        (
            const word& modelType,
            const fvPatch& patch,
            const dictionary& dict
        );
 
        //- No copy construct
        KirchhoffShell(const KirchhoffShell&) = delete;
 
        //- No copy assignment
        void operator=(const KirchhoffShell&) = delete;
 
 
    //- Destructor
    virtual ~KirchhoffShell() = default;
 
 
    // Member Functions
 
        // Fields
 
            //- Return stiffness
            const tmp<areaScalarField> D() const;
 
            //- Return density [Kg/m3]
            const tmp<areaScalarField> rho() const;
 
 
        // Evolution
 
            //- Pre-evolve  thermal baffle
            virtual void preEvolveRegion();
 
            //- Evolve the thermal baffle
            virtual void evolveRegion();
 
 
       // IO
 
            //- Provide some feedback
            virtual void info();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace regionModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 
#endif
 
// ************************************************************************* //