reverseRamp.H

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    Copyright (C) 2013-2019 FOSS GP
    Copyright (C) 2019 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.
 
    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::Function1Types::reverseRamp
 
Description
    Reverse ramp function starting from 1 and decreasing stepRamply to a min. 
    user-specified value from \c start over the \c duration and remaining 
    constant thereafter.
 
See also 
    Foam::Function1Types::ramp
 
SourceFiles
    reverseRamp.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef reverseRamp_H
#define reverseRamp_H
 
#include "ramp.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
namespace Function1Types
{
 
/*---------------------------------------------------------------------------*\
                        Class reverseRamp Declaration
\*---------------------------------------------------------------------------*/
 
class reverseRamp
:
    public ramp
{
protected:
 
    // Protected Data Members 
 
        //- The min value 
        scalar minValue_;
 
        //- Interval for reducing the base value
        scalar interval_;
 
        //- Steps to reach the min. value
        scalar steps_;
 
 
private:
 
    // Private Data Members 
 
        //- No copy assignment
        void operator=(const reverseRamp&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("reverseRamp");
 
 
    // Constructors
 
        //- Construct from entry and dictionary 
        reverseRamp 
        (
            const word& entryName,
            const dictionary& dict,
            const objectRegistry* obrPtr = nullptr
        );
 
 
    //- Destructor
    virtual ~reverseRamp() = default;
 
 
    // Member Functions
 
        //- Return value for time t
        inline virtual scalar value(const scalar t) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Function1Types
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "reverseRampI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //