general.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011 OpenFOAM Foundation
    Copyright (C) 2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
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::tabulatedWallFunctions::general
 
Description
    Computes U+ as a function of Reynolds number by inverting table of
    y+ vs U+
 
    Example dictionary specification:
 
    \verbatim
        tabulatedWallFunction general;
 
        // Output table info
        tableName       uPlusWallFunctionData; // Output table name
        log10           yes;                // Re interpreted as log10(Rey)
        dx              0.2;                // Interval log10(Rey)
        x0              -3;                 // Minimum log10(Rey)
        xMax            7;                  // Maximum log10(Rey)
 
        generalCoeffs
        {
            interpType      linear;         // Interpolation method
            log10YPlus      true;           // y+ values defined as log10(y+)
            log10UPlus      true;           // U+ values defined as log10(y+)
            inputTable
            (
                (yPlusValue0    uPlusValue0)
                ...
                (yPlusValueN    uPlusValueN)
            );
        }
    \endverbatim
 
SourceFiles
    general.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef general_H
#define general_H
 
#include "tabulatedWallFunction.H"
#include "Enum.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace tabulatedWallFunctions
{
 
/*---------------------------------------------------------------------------*\
                        Class general Declaration
\*---------------------------------------------------------------------------*/
 
class general
:
    public tabulatedWallFunction
{
public:
 
    // Public data types
 
        //- Enumeration listing available interpolation types
        enum interpolationType
        {
            itLinear
        };
 
        static const Enum<interpolationType> interpolationTypeNames_;
 
 
protected:
 
    // Protected data
 
        //- Type of interpolation to apply when inverting the data set
        interpolationType interpType_;
 
        //- Are y+ values entered as log10(y+)?
        bool log10YPlus_;
 
        //- Are U+ values entered as log10(U+)?
        bool log10UPlus_;
 
        //- Input y+ values
        List<scalar> yPlus_;
 
        //- Input U+ values
        List<scalar> uPlus_;
 
 
    // Protected Member Functions
 
        //- Invert the table
        virtual void invertTable();
 
        //- Interpolate
        virtual scalar interpolate
        (
            const scalar xi,
            const scalarList& x,
            const scalarList& fx
        ) const;
 
 
public:
 
    //- Run-time type information
    TypeName("general");
 
 
    // Constructors
    general(const dictionary& dict, const polyMesh& mesh);
 
    //- Destructor
    virtual ~general();
 
 
    // Member Functions
 
        // Access
 
            //- Return y+ as a function of u+
            virtual scalar yPlus(const scalar uPlus) const;
 
            //- Return Reynolds number as a function of u+
            virtual scalar Re(const scalar uPlus) const;
 
 
        // I-O
 
            //- Write to Ostream
            virtual void writeData(Ostream& os) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace tabulatedWallFunctions
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //