wallShearStressWriter.H

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/*---------------------------------------------------------------------------*\
    Copyright            : (C) 2011 Symscape
    Website              : www.symscape.com
-------------------------------------------------------------------------------
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.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    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::wallShearStressWriter
 
Description
    Write wallShearStress field
 
SourceFiles
    wallShearStress.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef wallShearStressWriter_H
#define wallShearStressWriter_H
 
#include "derivedFieldWriter.H"
#include "volFieldsFwd.H"
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
  class dictionary;
 
 
  /*---------------------------------------------------------------------------*\
    Class wallShearStressWriter Declaration
  \*---------------------------------------------------------------------------*/
 
  class wallShearStressWriter : public derivedFieldWriter
  {
    // Private data
 
    //- Name of velocity field
    word UName_;
            
    //- Name of density field (optional)
    word rhoName_;
 
    //- Reference density needed for incompressible calculations
    scalar rhoRef_;
    
    // Private methods
 
    //- Return the effective viscous stress (laminar + turbulent).
    tmp<volSymmTensorField> devRhoReff(const objectRegistry& obr, 
                                       bool & foundField) const;
 
    //- Return rho field if it exists or rhoRef_ for incompressible rho
    tmp<Foam::volScalarField> rho(const objectRegistry& obr) const;
 
  public:
    //- Runtime type information
    TypeName("wallShearStressWriter");
 
    //- Field file name.
    static const word FIELD_NAME;
 
    // Constructors
 
    wallShearStressWriter(const dictionary& dict);
 
    // Member Functions
 
    //- Write derived field.
    virtual void write(const objectRegistry& obr);
  };
 
  // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //