This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
GDI Swirl Injector Spray Simulation:A Combined Phenomenological-CFD Approach
Technical Paper
2004-01-3005
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In this work the formation and the evolution of the fuel spray emerging from a hollow-cone swirl injector were investigated. The first aim of the work was to set up a tool for fuel spray simulation in a CFD analysis that can offer a reasonable accuracy with no significant increment in the computational time.
The analysis started from a theoretical formulation of the fuel flow inside the injector, based on the potential theory, obtaining an injector model which allows the calculation of the main spray characteristics usually required by the CFD analysis (i.e. droplet velocity, fuel film thickness, droplet size distribution).
These parameters can be obtained only from spray cone angle and mass flow rate, which are the data commonly provided by injector manufacturers.
Furthermore, a phenomenological approach was also presented, in order to properly simulate in CFD analysis the spray tip penetration in the dense spray zone, without requiring an increase of the spatial grid resolution.
Encouraging results were obtained that are in good agreement with the experimental data.
Recommended Content
Authors
Topic
Citation
Badami, M., Bevilacqua, V., Millo, F., Chiodi, M. et al., "GDI Swirl Injector Spray Simulation:A Combined Phenomenological-CFD Approach," SAE Technical Paper 2004-01-3005, 2004, https://doi.org/10.4271/2004-01-3005.Also In
References
- Zhao F.-Q. Lai M.-C. Harrington D. “Automotive Gasoline Direct-Injection Engines” SAE Int.Ed. 2002
- Chiodi M. Bargende M. “Improvement of Engine Heat-Transfer Calculation in the Three-Dimensional Simulation Using a Phenomenological Heat-Transfer Model” SAE Paper 2001-01-3601
- Chiodi M. Berner H.J. Bargende M. “Investigation on Mixture Formation and Combustion Process in a CNG-Engine by Using a Fast Response 3D-CFD-Simulation” SAE Paper 2004-01-3004
- El Wakil, M.M. Ueyhara, O.A. Myers, P.S. “ A theoretical investigation of the heating-up period of injected fuel droplets vaporizing in air” NACA Technical Note 3179 1954
- Ranz, W.E. Marshall, W.R. “Evaporation from drops” Chem. Eng. Prog. 48 3 1952
- Hsiang, L.-P. Faeth, G.M. “Near-limit drop deformation and secondary breakup” Int. J. Multiphase Flow 18 5 635 652 1992
- Bai C. Gosman A.D. “Development of methodology for spray impingement simulation” SAE Paper 950283 1995
- Ahmadi-Befrui B. Uchil N. Gosman A.D. Issa R.I. “Modeling and simulation of thin liquid film formed by spray-wall interaction” SAE Paper 960627 1996
- Bai C. Gosman A.D. “Mathematical modeling of wall film formed by impinging sprays” SAE Paper 960626 1996
- Allocca L. Bella G. “Experimental Validation of a GDI Spray Model” SAE Paper 2002-01-1137 2002
- Stan C. Troeger R. Stanciu A. “Correlation Concept between Mixture Formation and Ignition Applied to a GDI High Speed Engine” SAE Paper 2002-01-0833 2002
- Kawajiri K. Yonezawa T. Ohuchi H Sumida M. Katashiba H. “Study of interaction between spray and air motion, and spray wall impingement” SAE Paper 2002-01-0836 2002
- Joh M. Huh K.Y. Yoo J.-H Lai M.-C “Numerical prediction and validation of fuel spray behaviour in a gasoline direct-injection engine” SAE Paper 2001-01-3668 2001
- Gavaises M. Abo-seie E. Arcoumanis V. “Nozzle film formation and its link to spray characteristics in swirl-pressure atomizers for direct injection gasoline engines” SAE Paper 2002-01-1136 2002
- Tanazawa Y. Kobayashi K. “A study on swirl atomizer” Tech. Rept. Tohoku Univ. XX 1 27 69 1955
- Wang X.F. Lefebvre A.H. “Mean drop sizes from pressure-swirl nozzles” AIAA J. Propul. Power 3 1 11 18 1987
- Han Z. Parrish S. Farrel V.P. Reitz R.D. “Modelling atomization processes of pressure swirl hollow-cone fuel sprays” Atomization and sprays 7 663 684 1997
- Danieli A. “Simulazione numerica dello spray in motori ad accensione comandata ad iniezione diretta” Dipartimento di Energetica - Politecnico di Torino Italy 2002
- Computational Dynamics Ltd. “STAR-CD Version 3.150A - Methodology” London
- Binder K. “Einfluß des Einspritzdruckes auf Strahlausbreitung, Gemischbildung und Motorkennwerteeines direkteinspritzenden Dieselmotoren” München, Germany 1992
- Le Coz J. Hermant L. “Visualization of sprays generated by direct gasoline injectors” 14 th Annual Conference on Liquid Atomization and Spray Systems (ILASS-Europe) Toulouse 1999
- Boulouchos K. Koch T. Schanzlin K. “Characterization of Mixture Formation and Combustion in a Direct Injection Spark Ignition Engine with Jet-Guided Strategy” 5 th Stuttgart International Symposium 2003
- Schmidt, D. P. Nouar, I. Senecal, P. K. Hoffman, J. Rutland, C. J. Martin, J. Reitz, R. D. “Pressure-Swirl Atomization in the Near Field” SAE Paper 1999-01-0496 1999
- Schmehl, R. Maier G. Wittig S. “CFD Analysis of Fuel Atomization, Secondary Droplet Breakup and Spray Dispersion in the Premix Duct of a LPP Combustor” 8 th International Conference on Liquid Atomization and Spray Systems Pasadena, USA 2000
- Allocca L. Bella G. De Vita A. Di Angelo L. “Experimental Validation of a GDI Spray Model” SAE Paper 2002-01-1137 2002
- Stiesch G. Merker G.P. Tan Z. Reitz R.D. “Modeling the Effect of Split Injections on DISI Engine Performance” SAE Paper 2001-01-0965 2001
- Befrui B. Kneer R. Breuer S. Reckers W. Robart D. Wanlin H. Weiten C. “Investigation of a DISI Fuel Injector for a Close-Arranged Spray-Guided Combustion System” SAE Paper 2002-01-1133 2002
- Schaenzlin K. Koch T. Tzannis A.P. Boulouchos K. “Characterization of Mixture Formation in a Direct Injected Spark Ignition Engine ” SAE Paper 2002-01-1909 2002
- Stiesch, G. “Modeling engine spray and combustion processes” Springer Ed. 2003
- Wan Y. Peters N. “Scaling of spray penetration with evaporation” Atomization and Sprays 9 2 111 132 1999