This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Modeling Fuel Preparation and Stratified Combustion in a Gasoline Direct Injection Engine
Technical Paper
1999-01-0175
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Fuel preparation and stratified combustion were studied for a conceptual gasoline Direct-Injection Spark-Ignition (GDI or DISI) engine by computer simulations. The primary interest was on the effects of different injector orientations and the effects of tumble ratio for late injection cases at a partial load operating condition. A modified KIVA-3V code that includes improved spray breakup and wall impingement and combustion models was used. A new ignition kernel model, called DPIK, was developed to describe the early flame growth process. The model uses Lagrangian marker particles to describe the flame positions. The computational results reveal that spray wall impingement is important and the fuel distribution is controlled by the spray momentum and the combustion chamber shape. The injector orientation significantly influences the fuel stratification pattern, which results in different combustion characteristics. The gas tumble also affects the fuel distribution and the ignition process. Under certain conditions, the mixing is characterized by the existence of many lean regions in the cylinder and the burning speed is very low; hence the combustion can be poor in these cases.
Recommended Content
| Technical Paper | Limited-Temperature Cycle |
| Technical Paper | PDF Modelling of Stratified Charge SI Engine Combustion |
| Technical Paper | Validation of a Species-Based Extended Coherent Flamelet Model (SB-ECFM) in a Spark Ignition Engine |
Authors
Topic
Citation
Fan, L., Li, G., Han, Z., and Reitz, R., "Modeling Fuel Preparation and Stratified Combustion in a Gasoline Direct Injection Engine," SAE Technical Paper 1999-01-0175, 1999, https://doi.org/10.4271/1999-01-0175.Also In
References
- Tagagi Y. Itoh T. Muranaka S. Lyama A. Iwakiri Y. Urushihara T. Naitoh K. “Simultaneous Attainment of Low Fuel Consumption, High Power Output and Low Exhaust Emissions in Direct Injection S.I. Engines,” SAE paper 980149 1998
- Iwamoto Y. Noma K. Nakayama O. Yamauchi T. Ando H. “Development of Gasoline Direct Injection Engine,” SAE paper 970541 1997
- Harada J. Tomita T. Mizuno H. Mashiki Z. Ito Y. “Development of Direct Injection Gasoline Engine,” SAE 970540 1997
- Ohsuga, M Shiraishi, T. Nogi, T. Nakayama, Y. Sukegawa, Y. “Mixture Preparation for Direct-Injection SI Engines,” SAE 970542 1997
- Han, Z. Fan, L. Reitz, R. D. “Multidimensional Modeling of Spray Atomization and Air-Fuel Mixing in a Direct-Injection Spark-Ignition Engine,” SAE paper 970884
- O'Rourke P. J. Amsden A. A. “Three Dimensional Numerical Simulations of the UPS-292 Stratified Charge Engine,” SAE 870597 1987
- Gill A. Gutheil E. Warnatz J. “Numerical Investigation of the Combustion Process in a Direct-Injection Stratified Charge Engine,” Combustion Science and Technology 1996 115 317 333
- Amsden, A. A. “KIVA-3V: A Block-Structured KIVA Program for Engines with Vertical or Canted Valves,” Los Alamos National Laboratory Report 1997
- Han Z. Parrish S. Farrell P.V. Reitz R.D. “Modeling Atomization Processes of Pressure-swirl Hollow-cone Fuel Sprays,” Atomization and Sprays 7 663 684 1997
- O'Rourke P.J. Amsden A.A. “The TAB Method for Numerical Calculation of Spray Droplet Breakup,” SAE paper 872089 1987
- Naber J.D. Reitz R.D. “Modeling Engine spray/Wall Impingement,” SAE paper 880107 1988
- Wachters, L. H. J. Westerling, N.A.J. “The Heat Transfer from a Hot Wall to Impinging Water Drops in the Spheroidal State.” Chem. Eng. Sci. 21 1047 1056 1966
- Abraham J. Bracco F. V. Reitz R.D. “Comparisons of Computed and Measured Premixed Charge Engine Combustion,” Combustion and Flame 60 309 322 1985
- Magnussen, B. F. Hjertager, B. H. “On Mathematical Modeling of Turbulent Combustion with Special Emphasis on Soot Formation and Combusiton,” Sixteenth Symposium (International) on Combustion The Combustion Institute 719 729 1977
- Metghalchi, M. Keck, J. C. Combust. Flame 38 143 154 1980
- Liu, Y. Reitz, R. “Multidimensional Modeling of Engine Combustion Chamber Surface Temperatures,” SAE 971593 1997
- Papageorgakis G. Assanis D. “Optimizing Gaseous Fuel-Air Mixing in Direct Injection Engine Using an RNG Based k-e model,” SAE 980135 1998
- Hampson., G. J. Xin, J. Liu, Y. Han, Z. Reitz R.D. “Modeling of NOx Emissions with Comparison to Exhaust Measurements for a Gas Fuel Converted Heavy-Duty Diesel Engine,” SAE paper 961967
- Heywood, J. B. “Internal Combustion Engine Fundamentals,” McGraw Hill 1988
- Herweg, R. Maly, R.R. “A Fundamental Model for Flame Kernel Formation in S.I. Engine,” SAE 922243 1992
- Turns, S.R. “An Introduction to Combustion,” McGraw Hill, Inc. 1996
- Han, Z. Reitz, R. D. “Turbulence Modeling of Internal Combustion Engines Using RNG k-ε models,” Comust. Sci. and Tech. 106 267 295 1995
- Amsden, A. A. O'Rourke, P. J. Butler, T. D. “KIVA-II: A Computer Program for Chemically Reactive Flows with Spray,” Los Alamos National Lab Report 1989
- Gridgen Version 11 User's Manual Poitwisce, Inc 1996
- Brehob, D. D. Fleming, J. Haghgooie, M. Stein, R.A. “Stratified-Charge Engine Fuel Economy and Emission Characteristics,” SAE 982704 1998