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definedPressureSwirl.H

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00001 /*---------------------------------------------------------------------------*\
00002   =========                 |
00003   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
00004    \\    /   O peration     |
00005     \\  /    A nd           | Copyright (C) 1991-2005 OpenCFD Ltd.
00006      \\/     M anipulation  |
00007 -------------------------------------------------------------------------------
00008 License
00009     This file is part of OpenFOAM.
00010 
00011     OpenFOAM is free software; you can redistribute it and/or modify it
00012     under the terms of the GNU General Public License as published by the
00013     Free Software Foundation; either version 2 of the License, or (at your
00014     option) any later version.
00015 
00016     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
00017     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
00019     for more details.
00020 
00021     You should have received a copy of the GNU General Public License
00022     along with OpenFOAM; if not, write to the Free Software Foundation,
00023     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
00024 
00025 Class
00026     definedPressureSwirlInjector
00027 
00028 Description
00029 
00030     Pressure Swirl injector model with user defined
00031     - cone angle/interval vs. time         
00032 
00033 \*---------------------------------------------------------------------------*/
00034 
00035 #ifndef definedPressureSwirlInjector_H
00036 #define definedPressureSwirlInjector_H
00037 
00038 #include "injectorModel.H"
00039 #include "scalarList.H"
00040 #include "vector.H"
00041 
00042 
00043 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00044 
00045 namespace Foam
00046 {
00047 /*---------------------------------------------------------------------------*\
00048                            Class definedPressureSwirlInjector Declaration
00049 \*---------------------------------------------------------------------------*/
00050 
00051 class definedPressureSwirlInjector
00052 :
00053     public injectorModel
00054 {
00055 
00056 private:
00057 
00058     // Private data
00059 
00060         typedef VectorSpace<Vector<scalar>, scalar, 2> pair;
00061 
00062         dictionary definedPressureSwirlInjectorDict_;
00063 
00064         List<pair> coneAngle_;
00065         List<pair> coneInterval_;
00066 
00067         List<pair>  maxKv_;
00068         
00069     // The initial spray angle for the parcels    
00070         mutable scalar angle_;
00071         
00072     // The initial velocity for the parcels           
00073         mutable scalar u_;
00074 
00075     // two perpendicular vectors, perpendicular to injection direction
00076         List<vector> tan1_;
00077         List<vector> tan2_;
00078 
00079     // private member functions
00080         
00081         scalar kv
00082         (
00083             const label inj, 
00084             const scalar massFlow,
00085             const scalar dPressure,
00086             const scalar t
00087         ) const;
00088         
00089         scalar deltaPressureInj(const scalar time, const label inj) const;
00090         scalar averagePressure(const label inj) const;
00091 
00092 public:
00093 
00094     //- Runtime type information
00095         TypeName("definedPressureSwirlInjector");
00096 
00097 
00098     // Constructors
00099 
00100         //- Construct from components
00101         definedPressureSwirlInjector
00102         (
00103             const dictionary& dict,
00104             spray& sm
00105         );
00106 
00107 
00108     // Destructor
00109 
00110         ~definedPressureSwirlInjector();
00111 
00112 
00113     // Member Functions
00114 
00115         //- Return the injected droplet diameter
00116         scalar d0(const label injector, const scalar time) const;
00117 
00118         //- Return the spray angle of the injector
00119         vector direction
00120         (
00121             const label injector, 
00122             const scalar time,
00123             const scalar d
00124         ) const;
00125     
00126         scalar velocity
00127         (
00128             const label i,
00129             const scalar time
00130         ) const;
00131         
00132         scalar averageVelocity
00133         (
00134             const label i
00135         ) const;
00136         
00137 
00138 };
00139 
00140 
00141 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00142 
00143 } // End namespace Foam
00144 
00145 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00146 
00147 #endif
00148 
00149 // ************************************************************************* //
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