multiCycleConstantbXiIgnition.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::fv::multiCycleConstantbXiIgnition
 
Description
    Simple constant rate ignition model for the Weller b-Xi combustion models
 
Usage
    Example usage:
    \verbatim
    multiCycleConstantbXiIgnition1
    {
        type            multiCycleConstantbXiIgnition;
 
        cellZone        ignition;
 
        // Timings are defined in crank angles for a multi-cycle engine case
        start           700;
        duration        5;
        combustionDuration 200;
        period          720;
 
        XiCorr
        {
            type            spherical;
            cellZone        all;
        }
    }
    \endverbatim
 
    Where:
    \table
        Property          | Description              | Required | Default value
        cellZone          | Correction cellZone         | yes       |
        start             | Ignition start time         | yes      |
        duration          | Ignition duration           | yes      |
        combustionDuration| Combustion duration         | yes      |
        period            | Ignition repeat period      | yes      |
        strength          | Ignition strength [1/s]     | yes      |
        XiCorr            | Flame-wrinkling correction  | yes      |
    \endtable
 
See also
    Foam::XiCorrModel
    Foam::XiCorrModels::planar
    Foam::XiCorrModels::cylindrical
    Foam::XiCorrModels::spherical
 
SourceFiles
    multiCycleConstantbXiIgnition.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef multiCycleConstantbXiIgnition_H
#define multiCycleConstantbXiIgnition_H
 
#include "constantbXiIgnition.H"
#include "XiCorrModel.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace fv
{
 
/*---------------------------------------------------------------------------*\
                     Class multiCycleConstantbXiIgnition Declaration
\*---------------------------------------------------------------------------*/
 
class multiCycleConstantbXiIgnition
:
    public constantbXiIgnition
{
    // Private Data
 
        //- Ignition repeat period
        dimensionedScalar period_;
 
        //- Combustion duration
        //  after which ignited is set false and the composition reset
        dimensionedScalar combustionDuration_;
 
        //- Set true when the composition is reset
        //  at the end of the combustion duration
        //  and reset false at the beginning of ignition
        mutable bool reset_;
 
 
    // Private Member Functions
 
        //- Non-virtual read
        void readCoeffs(const dictionary& dict);
 
        //- Return the time relative to the ignition time
        //  for the current period
        scalar ignRelTime(const scalar t) const;
 
 
public:
 
    //- Runtime type information
    TypeName("multiCycleConstantbXiIgnition");
 
 
    // Constructors
 
        //- Construct from explicit source name and mesh
        multiCycleConstantbXiIgnition
        (
            const word& name,
            const word& modelType,
            const fvMesh& mesh,
            const dictionary& dict
        );
 
        //- Disallow default bitwise copy construction
        multiCycleConstantbXiIgnition
        (
            const multiCycleConstantbXiIgnition&
        ) = delete;
 
 
    // Member Functions
 
        // Checks
 
            //- Return true during the ignition duration
            virtual bool igniting() const;
 
            //- Return true during the combustion duration
            virtual bool ignited() const;
 
 
        // IO
 
            //- Read source dictionary
            virtual bool read(const dictionary& dict);
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const multiCycleConstantbXiIgnition&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fv
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //