momentumError.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2020-2021 OpenCFD Ltd.
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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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    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::momentumError
 
Group
    grpForcesFunctionObjects
 
Description
    Computes balance terms for the steady momentum equation.
 
    Operands:
    \table
      Operand       | Type           | Location
      input         | -              | -
      output file   | -              | -
      output field  | volVectorField | <time>/file
    \endtable
 
Usage
    Minimal example by using \c system/controlDict.functions:
    \verbatim
    momentumErrorFO
    {
        // Mandatory entries
        type        momentumError;
        libs        (fieldFunctionObjects);
 
        // Optional entries
        p           <word>;
        U           <word>;
        phi         <word>;
 
        // Inherited entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property     | Description                        | Type | Reqd  | Deflt
      type         | Type name: momentumError           | word |  yes  | -
      libs         | Library name: fieldFunctionObjects | word |  yes  | -
      p            | Name of pressure field             | word |  no   | p
      U            | Name of velocity field             | word |  no   | U
      phi          | Name of flux field                 | word |  no   | phi
    \endtable
 
    The inherited entries are elaborated in:
      - \link functionObject.H \endlink
      - \link zoneSubSet.H \endlink
 
Note
  - Optionally the user can specify \c cellZones to create a sub-mesh for the
    \c momentumError calculation.
 
SourceFiles
    momentumError.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_functionObjects_momentumError_H
#define Foam_functionObjects_momentumError_H
 
#include "fvMeshFunctionObject.H"
#include "volFieldsFwd.H"
#include "zoneSubSet.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace functionObjects
{
 
/*---------------------------------------------------------------------------*\
                           Class momentumError Declaration
\*---------------------------------------------------------------------------*/
 
class momentumError
:
    public fvMeshFunctionObject
{
protected:
 
    // Protected Data
 
        // Read from dictionary
 
            //- Name of pressure field
            word pName_;
 
            //- Name of velocity field
            word UName_;
 
            //- Name of flux field
            word phiName_;
 
            //- Sub-set mesh
            autoPtr<Detail::zoneSubSet> zoneSubSetPtr_;
 
 
    // Protected Member Functions
 
        //- Return the effective viscous stress (laminar + turbulent).
        tmp<volVectorField> divDevRhoReff();
 
 
public:
 
    //- Runtime type information
    TypeName("momentumError");
 
 
    // Constructors
 
        //- Construct from name, Time and dictionary
        momentumError
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );
 
        //- No copy construct
        momentumError(const momentumError&) = delete;
 
        //- No copy assignment
        void operator=(const momentumError&) = delete;
 
 
    //- Destructor
    virtual ~momentumError() = default;
 
 
    // Member Functions
 
        //- Read the function-object dictionary
        virtual bool read(const dictionary& dict);
 
        //- Execute the function-object operations
        virtual bool execute();
 
        //- Write the function-object results
        virtual bool write();
 
        //- Calculate the momentum error
        void calcMomentError();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace functionObjects
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //