rigidBodyMeshMotion.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2016-2017 OpenFOAM Foundation
    Copyright (C) 2021 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.
 
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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    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
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::rigidBodyMeshMotion
 
Group
    grpMeshMotionSolvers
 
Description
    Rigid-body mesh motion solver for fvMesh.
 
    Applies septernion interpolation of movement as function of distance to the
    object surface.
 
SourceFiles
    rigidBodyMeshMotion.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef rigidBodyMeshMotion_H
#define rigidBodyMeshMotion_H
 
#include "displacementMotionSolver.H"
#include "rigidBodyMotion.H"
#include "ramp.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                     Class rigidBodyMeshMotion Declaration
\*---------------------------------------------------------------------------*/
 
class rigidBodyMeshMotion
:
    public displacementMotionSolver
{
    //- Class containing the patches and point motion weighting for each body
    class bodyMesh
    {
        //- Name of the body
        const word name_;
 
        //- ID of the body in the RBD::rigidBodyMotion
        const label bodyID_;
 
        //- List of mesh patches associated with this body
        const wordRes patches_;
 
        //- Patches to integrate forces
        const labelHashSet patchSet_;
 
        //- Inner morphing distance (limit of solid-body region)
        const scalar di_;
 
        //- Outer morphing distance (limit of linear interpolation region)
        const scalar do_;
 
        //- Current interpolation weight
        //  (1 at patches and within di_, 0 at do_ and beyond)
        pointScalarField weight_;
 
 
    public:
 
        friend class rigidBodyMeshMotion;
 
        bodyMesh
        (
            const polyMesh& mesh,
            const word& name,
            const label bodyID,
            const dictionary& dict
        );
    };
 
 
    // Private data
 
        //- Rigid-body model
        RBD::rigidBodyMotion model_;
 
        //- List of the bodyMeshes containing the patches and point motion
        //  weighting for each body
        PtrList<bodyMesh> bodyMeshes_;
 
        //- Test-mode in which only the gravitational body-force is applied
        bool test_;
 
        //- Reference density required by the forces object for
        //  incompressible calculations, required if rho == rhoInf
        scalar rhoInf_;
 
        //- Name of density field, optional unless used for an
        //  incompressible simulation, when this needs to be specified
        //  as rhoInf
        word rhoName_;
 
        //- Ramp the forces according to the specified function and period
        autoPtr<Function1<scalar>> ramp_;
 
        //- Current time index (used for updating)
        label curTimeIndex_;
 
        //- Name of the uniformVectorField for CofG displacement
        word cOfGdisplacement_;
 
        //- Body Id for the body to write CofG displacement
        label bodyIdCofG_;
 
 
 
    // Private Member Functions
 
        //- No copy construct
        rigidBodyMeshMotion(const rigidBodyMeshMotion&) = delete;
 
        //- No copy assignment
        void operator=(const rigidBodyMeshMotion&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("rigidBodyMotion");
 
 
    // Constructors
 
        //- Construct from polyMesh and IOdictionary
        rigidBodyMeshMotion
        (
            const polyMesh&,
            const IOdictionary& dict
        );
 
 
    //- Destructor
    ~rigidBodyMeshMotion() = default;
 
 
    // Member Functions
 
        //- Return point location obtained from the current motion field
        virtual tmp<pointField> curPoints() const;
 
        //- Solve for motion
        virtual void solve();
 
        //- Write state using stream options
        virtual bool writeObject
        (
            IOstreamOption streamOpt,
            const bool valid
        ) const;
 
        //- Read dynamicMeshDict dictionary
        virtual bool read();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //