drag.H

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License
    This file is part of OpenFOAM.
 
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    the Free Software Foundation, either version 3 of the License, or
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Class
    Foam::Lagrangian::drag
 
Description
    Base class for Lagrangian drag models
 
SourceFiles
    drag.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef drag_H
#define drag_H
 
#include "cloudLagrangianModel.H"
#include "CloudDerivedField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace Lagrangian
{
 
/*---------------------------------------------------------------------------*\
                          Class drag Declaration
\*---------------------------------------------------------------------------*/
 
class drag
:
    public LagrangianModel,
    protected cloudLagrangianModel
{
private:
 
    // Private Member Functions
 
        //- Calculate the drag coefficient
        virtual tmp<LagrangianSubScalarField> calcD
        (
            const LagrangianModelRef& model,
            const LagrangianSubMesh& subMesh
        ) const = 0;
 
        //- Add a source term to the velocity equation
        void addUSup
        (
            const LagrangianSubVectorSubField& U,
            LagrangianEqn<vector>& eqn
        ) const;
 
 
public:
 
    //- Runtime type information
    TypeName("drag");
 
 
    // Public Data
 
        //- Drag coefficient
        const CloudDerivedField<scalar>& D;
 
 
    // Constructors
 
        //- Construct from components
        drag
        (
            const word& name,
            const LagrangianMesh& mesh,
            const dictionary& modelDict,
            const dictionary& stateDict
        );
 
 
    // Member Functions
 
        //- Return the name of the velocity field
        virtual wordList addSupFields() const;
 
        //- Return true for the velocity or carrier velocity field
        virtual bool addsSupToField
        (
            const word& fieldName,
            const word& eqnFieldName
        ) const;
 
        //- Add a source term to the velocity equation
        virtual void addSup
        (
            const LagrangianSubScalarField& deltaT,
            const LagrangianSubVectorSubField& U,
            LagrangianEqn<vector>& eqn
        ) const;
 
        //- Add a source term to the momentum equation
        virtual void addSup
        (
            const LagrangianSubScalarField& deltaT,
            const LagrangianSubScalarSubField& vOrM,
            const LagrangianSubVectorSubField& U,
            LagrangianEqn<vector>& eqn
        ) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Lagrangian
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //