This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Atomization of High-Pressure Diesel Spray: Experimental Validation of a New Breakup Model
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 05, 2001 by SAE International in United States
Annotation ability available
Event: SAE 2001 World Congress
A hybrid model for the atomization of Diesel sprays was developed . The model was added to the KIVA code to better simulate spray evolution. Different implementation for low-medium and high injection pressure sprays are performed. It has already been validated for the low-pressure case [1,2] and in this work it was tested for high injection pressure systems, in a vessel at ambient conditions. It distinguishes between jet primary breakup and droplet secondary breakup. For the latter distinct models are used, as the droplet Weber number changes in the various regimes, in order to take into account the effects of the different relevant forces. For high pressure Diesel spray the effects of jet turbulence, cavitation and nozzle flow on liquid core primary breakup must be considered. Due to the high droplet velocity the catastrophic secondary breakup regime may occur. Inclusion of the Rayleigh-Taylor accelerative instabilities in competition with Kelvin-Helmholtz is therefore necessary to model high Weber number droplets secondary breakup.
The experimental data used for the tuning of the model and for the comparison of the results are pertinent to a commercial high pressure, electronic controlled, injection system (Bosch Common Rail) for automotive Diesel engines. The investigation procedure exploits a light sheet technique based on a Nd-Yag pulsed laser and a synchronized CCD camera [3, 4 and 5]. The measured characteristics are the spray penetration and the spray cone angles, as the fuel jet evolves in an atmospheric chamber.
CitationRotondi, R., Bella, G., Grimaldi, C., and Postrioti, L., "Atomization of High-Pressure Diesel Spray: Experimental Validation of a New Breakup Model," SAE Technical Paper 2001-01-1070, 2001, https://doi.org/10.4271/2001-01-1070.
- Bella G., De Maio A., Rotondi R., “Diesel Spray Atomization Models”, Workshop “Combustion Modeling in I.C.E.”, Cassino, 14-15 December 1999.
- Devita, Alaggio M., Rotondi R., “Experimental and Numerical Studies of Diesel Fuel and Biodiesel Spray”, ASME technical paper, 2000
- Grimaldi N., Postrioti L.: “Experimental Comparison Between Conventional and Bio-Derived Fuels Spray from a Common-Rail Injection System”, SAE 2000 World Congress, Detroit, March 2000. SAE Paper 2000-01-1252, 2000.
- Grimaldi C. N., Postrioti L. “Un Sistema Non Intrusivo per l'Analisi di Getti da Iniettori”, (in Italian) Proceedings of Mismac '99, Genova, Italy, 1999.
- Grimaldi C. N., Postrioti L., Stan C., Tröger R., “Analysis Method for the Spray Characteristics of a GDI System with High Pressure Modulation”, 2000 SAE International Congress & Exposition, Detroit, Michigan, USA 6-9, March 2000, SAE Paper 2000-01-1043.
- Reitz R. D., “Computer Modeling of Sprays”, Spray Technology Short Course, Pittsburgh, PA, May 1996
- Arcoumanis C., Gaivaises M., French B., “Effect of Fuel Injection Processes on the Structure of Diesel Sprays”, 970799 SAE Paper, 1997
- von C. Sarre K., Kong S. C., Reitz R. D., “Modeling the Effects of Injector Nozzle Geometry on Diesel Sprays”, 1999-01-0912 SAE Paper, 1999
- Huh K., Gosman A. D., “A Phenomenological Model of Diesel Spray Atomization”, Proceedings of The International Conference on Multiphase Flows, Tsukuba, Japan, 1991
- Arai M., Hiroyasu H., Shimizu M., Tabata M., “Disintegrating Process and Spray Characterization of Fuel Jet Injected by a Diesel Nozzle”, 840275 SAE Paper, 1984
- Arcoumanis C., Flora H., Gaivaises M., Kampanis M., Horrocks R., “Investigations of Cavitation in a Vertical Multi-Hole Injector”,1999-01-0524 SAE Paper, 1999
- Dan T., Yamamoto T., Senda J., Fujimoto H., “Effect of Nozzle Configurations for Characteristics of Non-Reacting Diesel Fuel Spray”, 970355 SAE Paper, 1997
- Nurick W. H., “Orifice Cavitation and its Effects on Spray Mixing”, J. Fluids Eng., Vol. 98, pp. 681-687, 1976
- Reitz R. D., Bracco F. V., “On the Dependence of the Spray Angle and Other Spray Parameters on Nozzle Design and Operating Conditions”, 790494, SAE Paper, 1979
- Schmidt D. P., Rutland C. J., Corradini M. L., Roosen P., Genge O., “Cavitation in Two-Dimensional Asymmetric Nozzles”, 1999-01-0518 SAE Paper, 1999
- Su T. F., Farrel P. V., Nagarajan R. T., “Nozzle Effect on High Pressure Diesel Injection”, 950083 SAE Paper, 1995
- Su T. F., Patterson M. A., Reitz R. D., Farrell V., “Experimental and Numerical Studies of High Pressure Multiple Injection Sprays”, 960861 SAE Paper, 1996
- Su, T.F., Chang, C.T., Reitz, R.D., Farrell, P.V., Pierport, A.D., Tow, T.C., “Effect of Injection Pressure and Nozzle Geometry on Spray SMD and D.I. Emission”, SAE paper no. 952360, 1995.
- Giffen E., Muraszew A., “The Atomisation of Liquid Fuels”, Chapman & Hall LTD
- Allocca L., Corcione F. E., Fusco A., Papetti F., Succi S., “Modeling of Diesel Spray Dynamics and Comparisons with experiments”, 941895 SAE Paper, 1995
- O'Rourke P. J., Amsden A. A., “The Tab Method for Numerical Calculation of Spray Droplet Breakup”, 872089 SAE Paper, 1987
- Ibrahim E.A., Yang H. Q., Przekwas A. J., “Modeling of Spray Droplets Deformation and Breakup”, AIAA J. Propulsion and Power, Vol. 9. pp. 651-654, 1993
- Reitz R. D., Bracco F. V., “Mechanism of Breakup of Round Liquid Jets”, Encyclopedia of Fluid Mechanics, Vol. 3, pp. 233-249, Gulf Pub., NJ, 1986
- Reitz R. D., “Modeling Atomization Processes in High-Pressure Vaporizing Sprays”, Atomization and Sprays, Vol. 3, pp. 309-337, 1987.
- Reitz R. D., Diwakar R., “Structure of High Pressure Fuel Sprays”, 870598 SAE Paper, 1987
- Habchi C., Verhoeven D., Huu C. H., Lambert L., Vanhemelryck J. L., Baritaud T., “Modeling Atomization and Break up in High-Pressure Diesel Sprays”, 970881 SAE Paper, 1997
- Belardini P., Bertoli C., Cameretti M.C., “Numerical Analysis of the Influence of the Jet Breakup Model Formulation on Diesel Engine Combustion Computations”, Atomization and Sprays, vol.8, pp. 123-154, 1998.
- Bianchi G.M., Cantore G., Pelloni P., “Modeling Atomization of High-Pressure Diesel Sprays”, 5° Convegno Automobili e Motori High-Tech”, Modena, Italy, 1999
- Reitz R. D., Bracco F. V., “Mechanism of Atomization of Liquid Jets”, The Physics of Fluids, Vol. 25, p.1730, 1982
- Brower G., Chang S. K., Corradini M. L., El-Beshbeeshy M., Martin J. K., Krueger J., “Physical Mechanism for Atomization of a Jet Spray: A Comparison of Models and Experiments”, 881318 SAE Paper, 1988
- Borman G. L., “Combustion Engineering”, McGraw-Hill, 1998
- Amsden, O'Rourke P. J., Butler T. D., “KIVA II: A Computer Program for Chemically Reactive Flows with Sprays”, Technical Report LA-11560-MS Los Alamos National Laboratory, May 1989
- Amsden, “KIVA-3: A KIVA Program with Block-Structured Mesh for Complex Geometries”, Los Alamos National Laboratory, 1993
- Bella G., Rotondi R., Corcione F. E., Valentino G., “Experimental and Numerical Analysis of a Diesel Spray”, ICE 1999
- Han Z., Uludogan A., Hampson G.J., Reitz R., “Mechanism and NOx Emissions Reduction Using a Multiple Injection in a Diesel Engine”, SAE Paper 960633, 1996.
- Huh K., Gosman A. D., “Atomization Mechanism of Diesel Spray”, pp. 47-87
- Brennen E. C., “Cavitation and Bubble Dynamics”, Oxford University Press, 1995
- Patterson M. A., Reitz R., “Modeling the Effects of Fuel Spray Characteristics on Diesel Engine Combustion and Emission”, 980131 SAE Paper, 1998
- Taylor G. I., “The Instability of Liquid Surfaces when Accelerated in a Direction Perpendicular to their Planes”, Vol. III, University Press, Cambridge, 1963
- Grimaldi N., Postrioti L., Marcacci M., Fiaccavento M.: “Experimental Characterization of the Flow trough the Nozzle of a 2-Stroke Air-Assisted Direct Injection System”, High Tech Engines and Cars, 6th International Congress, May 25-26th, Modena, Italy.
- Ficarella, Laforgia D., Starace G., Damiani V. “Experimental Investigations of the Sprays of an Axi - Symmetric Nozzle of a Common Rail High Pressure Electro Injector” SAE Paper 970054, 1977
- Abraham J., What is Adequate Resolution in the Numerical Computations of Transient Jets, SAE paper no. 970051, 1997.