PTT.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::laminarModels::PTT
 
Description
    PTT model for viscoelasticity using the upper-convected time
    derivative of the stress tensor with support for multiple modes.
 
    Reference:
    \verbatim
        Phan-Thien, N., & Tanner, R. I. (1977).
        A new constitutive equation derived from network theory.
        Journal of Non-Newtonian Fluid Mechanics, 2(4), 353-365.
    \endverbatim
 
See also
    Foam::laminarModels::Maxwell
    Foam::laminarModels::Giesekus
 
SourceFiles
    PTT.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef PTT_H
#define PTT_H
 
#include "Maxwell.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace laminarModels
{
 
/*---------------------------------------------------------------------------*\
                             Class PTT Declaration
\*---------------------------------------------------------------------------*/
 
template<class BasicMomentumTransportModel>
class PTT
:
    public Maxwell<BasicMomentumTransportModel>
{
protected:
 
    // Protected data
 
        // Mode coefficients
 
            PtrList<dimensionedScalar> epsilons_;
 
 
    // Protected Member Functions
 
        virtual tmp<fvSymmTensorMatrix> sigmaSource
        (
            const label modei,
            volSymmTensorField& sigma
        ) const;
 
 
public:
 
    typedef typename BasicMomentumTransportModel::alphaField alphaField;
    typedef typename BasicMomentumTransportModel::rhoField rhoField;
 
 
    //- Runtime type information
    TypeName("PTT");
 
 
    // Constructors
 
        //- Construct from components
        PTT
        (
            const alphaField& alpha,
            const rhoField& rho,
            const volVectorField& U,
            const surfaceScalarField& alphaRhoPhi,
            const surfaceScalarField& phi,
            const viscosity& viscosity,
            const word& type = typeName
        );
 
        //- Disallow default bitwise copy construction
        PTT(const PTT&) = delete;
 
 
 
    //- Destructor
    virtual ~PTT()
    {}
 
 
    // Member Functions
 
        //- Re-read model coefficients if they have changed
        virtual bool read();
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const PTT&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace laminarModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "PTT.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //