yPlus.H

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/*---------------------------------------------------------------------------*\
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-------------------------------------------------------------------------------
    Copyright (C) 2013-2016 OpenFOAM Foundation
    Copyright (C) 2015-2021 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.

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    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::functionObjects::yPlus

Group
    grpFieldFunctionObjects

Description
    Computes the near wall \f$y_1^+\f$ for turbulence models.

    Operands:
    \table
      Operand        | Type           | Location
      input          | -              | -
      output file    | dat | $FOAM_CASE/postProcessing/<FO>/<time>/<file>
      output field   | volScalarField | $FOAM_CASE/<time>/<outField>
    \endtable

Usage
    Minimal example by using \c system/controlDict.functions:
    \verbatim
    yPlus1
    {
        // Mandatory entries (unmodifiable)
        type        yPlus;
        libs        (fieldFunctionObjects);

        // Optional entries
        useWallFunction    true;

        // Optional (inherited) entries
        ...
    }
    \endverbatim

    where the entries mean:
    \table
      Property   | Description                        | Type | Req'd | Dflt
      type       | Type name: yPlus                   | word |  yes  | -
      libs       | Library name: fieldFunctionObjects | word |  yes  | -
      useWallFunction | Flag to use the local expressions of <!--
                      --> the selected nut wall function to compute yPlus, <!--
                      --> otherwise directly compute yPlus from flow field <!--
                      -->                             | bool | no    | true
    \endtable

    The inherited entries are elaborated in:
     - \link functionObject.H \endlink
     - \link writeFile.H \endlink

    Minimal example by using the \c postProcess utility:
    \verbatim
        <solver> -postProcess -func yPlus
    \endverbatim

See also
    - Foam::functionObject
    - Foam::functionObjects::fvMeshFunctionObject
    - Foam::functionObjects::writeFile
    - ExtendedCodeGuide::functionObjects::field::yPlus

SourceFiles
    yPlus.C

\*---------------------------------------------------------------------------*/

#ifndef functionObjects_yPlus_H
#define functionObjects_yPlus_H

#include "fvMeshFunctionObject.H"
#include "writeFile.H"
#include "volFieldsFwd.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

namespace functionObjects
{

/*---------------------------------------------------------------------------*\
                            Class yPlus Declaration
\*---------------------------------------------------------------------------*/

class yPlus
:
    public fvMeshFunctionObject,
    public writeFile
{
    // Private Data

        //- Flag to use the wall function expressions to compute yPlus
        bool useWallFunction_;


    // Private Member Functions

        //- File header information
        virtual void writeFileHeader(Ostream& os) const;


public:

    //- Runtime type information
    TypeName("yPlus");


    // Constructors

        //- Construct from Time and dictionary
        yPlus
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );

        //- No copy construct
        yPlus(const yPlus&) = delete;

        //- No copy assignment
        void operator=(const yPlus&) = delete;


    //- Destructor
    virtual ~yPlus() = default;


    // Member Functions

        //- Read the yPlus data
        virtual bool read(const dictionary&);

        //- Calculate the yPlus field
        virtual bool execute();

        //- Write the yPlus field
        virtual bool write();
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace functionObjects
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //