valueAverage.H

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/*---------------------------------------------------------------------------*\
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-------------------------------------------------------------------------------
    Copyright (C) 2015 OpenFOAM Foundation
    Copyright (C) 2016-2020 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::functionObjects::valueAverage
 
Group
    grpFieldFunctionObjects
 
Description
    Computes the ensemble- or time-based singular-value average values,
    with optional windowing, from the output of function objects
    that generate non-field type values (e.g. \c Cd of \c forceCoeffs or
    \c momentum_x in \c momentum function objects).
 
    Operands:
    \table
      Operand        | Type | Location
      input          | -    | -
      output file    | dat  | $FOAM_CASE/postProcessing/<FO>/<time>/<file>
      output field   | -    | -
    \endtable
 
Usage
    Minimal example by using \c system/controlDict.functions:
    \verbatim
    valueAverage1
    {
        // Mandatory entries (unmodifiable)
        type              valueAverage;
        libs              (fieldFunctionObjects);
 
        // Mandatory entries (runtime modifiable)
        functionObject    <FO>;                       // forceCoeffs1;
        fields            (<field1> ... <fieldN>);    // (Cm Cd Cl);
 
        // Optional entries (runtime modifiable)
        resetOnRestart    false;
        window            0.5;
 
        // Optional (inherited) entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property     | Description                           | Type | Req'd | Dflt
      type         | Type name: valueAverage               | word |  yes  | -
      libs         | Library name: fieldFunctionObjects    | word |  yes  | -
      functionObject | Name of function object to retrieve data | word | yes | -
      fields       | Names of operand fields               | wordList | yes | -
      resetOnRestart | Reset the averaging on restart      | bool | no | false
      window       | Averaging window                    | scalar | no | VGREAT
    \endtable
 
    The inherited entries are elaborated in:
     - \link regionFunctionObject.H \endlink
     - \link writeFile.H \endlink
 
    Usage by the \c postProcess utility is not available.
 
See also
    - Foam::functionObject
    - Foam::functionObjects::stateFunctionObject
    - Foam::functionObjects::writeFile
    - ExtendedCodeGuide::functionObjects::field::valueAverage
 
SourceFiles
    valueAverage.C
    valueAverageTemplates.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef functionObjects_valueAverage_H
#define functionObjects_valueAverage_H
 
#include "regionFunctionObject.H"
#include "writeFile.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace functionObjects
{
 
/*---------------------------------------------------------------------------*\
                        Class valueAverage Declaration
\*---------------------------------------------------------------------------*/
 
class valueAverage
:
    public regionFunctionObject,
    public writeFile
{
protected:
 
    // Protected Data
 
        //- Name of function object to retrieve data from
        word functionObjectName_;
 
        //- List of fields on which to operate
        wordList fieldNames_;
 
        //- Averaging window
        scalar window_;
 
        //- Average time per field
        List<scalar> totalTime_;
 
        //- Reset the averaging process on restart
        Switch resetOnRestart_;
 
 
    // Protected Member Functions
 
        //- Templated function to calculate the average
        template<class Type>
        void calc
        (
            const word& fieldName,
            const word& meanName,
            const scalar alpha,
            const scalar beta,
            bool& processed
        );
 
        //- Output file header information
        virtual void writeFileHeader(Ostream& os) const;
 
 
public:
 
    //- Runtime type information
    TypeName("valueAverage");
 
 
    // Constructors
 
        //- Construct from Time and dictionary
        valueAverage
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );
 
        //- No copy construct
        valueAverage(const valueAverage&) = delete;
 
        //- No copy assignment
        void operator=(const valueAverage&) = delete;
 
 
    //- Destructor
    virtual ~valueAverage() = default;
 
 
    // Public Member Functions
 
        //- Read the field value average data
        virtual bool read(const dictionary&);
 
        //- Execute
        virtual bool execute();
 
        //- Write the value average
        virtual bool write();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace functionObjects
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "valueAverageTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //