adaptiveLinear.H

Go to the documentation of this file.

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2012-2015 OpenFOAM Foundation
    Copyright (C) 2018 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::adaptiveLinear
 
Description
    Produces a linear ramp which adapts its gradient to changes in
    endTime and deltaT to always arrive at the relaxationEnd value at the end of
    the run
 
SourceFiles
    adaptiveLinear.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef adaptiveLinear_H
#define adaptiveLinear_H
 
#include "relaxationModel.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class adaptiveLinear Declaration
\*---------------------------------------------------------------------------*/
 
class adaptiveLinear
:
    public relaxationModel
{
private:
 
    // Private data
 
        //- Relaxation coefficient at the start of the iteration sequence.
        scalar relaxationStart_;
 
        //- Relaxation coefficient at the end of the iteration sequence.
        scalar relaxationEnd_;
 
        //- Store the time when the last request was made for relaxation,
        //  prevents multiple calls to relaxation in a timestep from
        //  incrementing the value
        scalar lastTimeValue_;
 
        //- Current relaxation value
        scalar relaxation_;
 
 
public:
 
    //- Runtime type information
    TypeName("adaptiveLinear");
 
    // Constructors
 
        //- Construct from components
        adaptiveLinear
        (
            const dictionary& relaxationDict,
            const Time& runTime
        );
 
 
    //- Destructor
    virtual ~adaptiveLinear() = default;
 
 
    // Member Functions
 
        //- Return the current relaxation coefficient
        virtual scalar relaxation();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //