limitVelocity.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2021-2025 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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    for more details.
 
    You should have received a copy of the GNU General Public License
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Class
    Foam::fa::limitVelocity
 
Description
    Limits the maximum velocity magnitude to the specified \c max value.
 
Usage
    Minimal example by using \c constant/faOptions:
    \verbatim
    <faOption>
    {
        // Mandatory entries
        type            limitVelocity;
        active          yes;
        selectionMode   all;
        max             <maxValue>;
 
        // Optional entries
        U               <UName>;
 
        // Inherited entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property  | Description                   | Type   | Reqd  | Deflt
      type      | Type name: limitVelocity      | word   | yes   | -
      max       | Maximum velocity limit [m/s]  | scalar | yes   | -
      U         | Name of operand velocity field | word  | no    | U
    \endtable
 
    The inherited entries are elaborated in:
     - \link fvOption.H \endlink
     - \link faceSetOption.H \endlink
 
SourceFiles
    limitVelocity.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_fa_limitVelocity_H
#define Foam_fa_limitVelocity_H
 
#include "faceSetOption.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace fa
{
 
/*---------------------------------------------------------------------------*\
                        Class limitVelocity Declaration
\*---------------------------------------------------------------------------*/
 
class limitVelocity
:
    public fa::faceSetOption
{
protected:
 
    // Protected Data
 
        //- Name of operand velocity field
        word UName_;
 
        //- Maximum velocity magnitude
        scalar max_;
 
 
public:
 
    //- Runtime type information
    TypeName("limitVelocity");
 
 
    // Constructors
 
        //- Construct from components
        limitVelocity
        (
            const word& name,
            const word& modelType,
            const dictionary& dict,
            const fvMesh& mesh,
            const word& defaultAreaName = word()
        );
 
        //- No copy construct
        limitVelocity(const limitVelocity&) = delete;
 
        //- No copy assignment
        void operator=(const limitVelocity&) = delete;
 
 
    //- Destructor
    virtual ~limitVelocity() = default;
 
 
    // Member Functions
 
        //- Read dictionary
        virtual bool read(const dictionary& dict);
 
        //- Correct the velocity field
        virtual void correct(areaVectorField& U);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fv
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //