vanDriestDelta.H

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Class
    Foam::vanDriestDelta
 
Description
    Simple cube-root of cell volume delta used in incompressible LES models.
 
    Example of the delta specification in turbulenceProperties:
    \verbatim
        delta               vanDriest;
 
        vanDriestCoeffs
        {
            // Underlying geometric delta
            delta           cubeRootVol;
            // Coefficients for geometric delta
            cubeRootVolCoeffs
            {
                deltaCoeff      2.0;
            }
            // Optional update interval
            // Default is 1 (update every step)
            updateInterval    1000;
        }
    \endverbatim
 
SourceFiles
    vanDriestDelta.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef vanDriestDelta_H
#define vanDriestDelta_H
 
#include "LESdelta.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace LESModels
{
 
/*---------------------------------------------------------------------------*\
                           Class vanDriestDelta Declaration
\*---------------------------------------------------------------------------*/
 
class vanDriestDelta
:
    public LESdelta
{
    // Private data
 
        autoPtr<LESdelta> geometricDelta_;
        scalar kappa_;
        scalar Aplus_;
        scalar Cdelta_;
        label calcInterval_;
 
 
    // Private Member Functions
 
        //- No copy construct
        vanDriestDelta(const vanDriestDelta&) = delete;
 
        //- No copy assignment
        void operator=(const vanDriestDelta&) = delete;
 
        // Calculate the delta values
        void calcDelta();
 
 
public:
 
    //- Runtime type information
    TypeName("vanDriest");
 
 
    // Constructors
 
        //- Construct from name, turbulenceModel and dictionary
        vanDriestDelta
        (
            const word& name,
            const turbulenceModel& turbulence,
            const dictionary&
        );
 
 
    //- Destructor
    virtual ~vanDriestDelta() = default;
 
 
    // Member Functions
 
        //- Read the LESdelta dictionary
        virtual void read(const dictionary&);
 
        // Correct values
        virtual void correct();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace LESModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //