1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2008 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
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18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 You should have received a copy of the GNU General Public License
22 along with OpenFOAM; if not, write to the Free Software Foundation,
23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 Foam::blobsSwirlInjector
29 Model for parcels injection in pressure Swirl Atomizers.
31 Accurate description in:
33 Z. Han, S. Parrish, P.V. Farrell, R.D. Reitz
34 "Modeling Atomization Processes Of Pressure Swirl Hollow-Cone Fuel Sprays"
35 Atomization and Sprays, vol. 7, pp. 663-684, 1997
39 L. Allocca, G. Bella, A. De Vita, L. Di Angelo
40 "Experimental Validation of a GDI Spray Model"
41 SAE Technical Paper Series, 2002-01-1137
44 \*---------------------------------------------------------------------------*/
46 #ifndef blobsSwirlInjector_H
47 #define blobsSwirlInjector_H
49 #include "injectorModel.H"
50 #include "scalarList.H"
53 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
57 /*---------------------------------------------------------------------------*\
58 Class blobsSwirlInjector Declaration
59 \*---------------------------------------------------------------------------*/
61 class blobsSwirlInjector
70 dictionary blobsSwirlInjectorDict_;
72 scalarList coneAngle_;
73 scalarList coneInterval_;
79 // The initial spray angle for the parcels
80 mutable scalar angle_;
82 // The initial velocity for the parcels
85 // The orifice-air cone area ratio
89 // The initial sheet tickness
93 // two perpendicular vectors, perpendicular to injection direction
97 // private member functions
104 scalar deltaPressureInj(const scalar time, const label inj) const;
105 scalar averagePressure(const label inj) const;
110 const scalar massFlow,
111 const scalar dPressure,
117 //- Runtime type information
118 TypeName("blobsSwirlInjector");
123 //- Construct from components
126 const dictionary& dict,
133 ~blobsSwirlInjector();
138 //- Return the injected droplet diameter
139 scalar d0(const label injector, const scalar time) const;
141 //- Return the spray angle of the injector
144 const label injector,
155 scalar averageVelocity
164 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
166 } // End namespace Foam
168 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
172 // ************************************************************************* //