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A Microscopic Analysis of In-Cylinder Swirl Generated by Directed Ports
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English
Abstract
Based on 3- dimensional velocity data at intake valve exit area of typical SI engine intake ports (horizontal and sloping directed ports) measured by hot wire anemometry in a steady flow rig, the magnitudes and compositions of inflow angular momentum flux and swirl ratios at the end of induction process generated by each velocity component were computed at different intake valve lifts and distances along valve axis. A microscopic evaluation method was provided for evaluating intake port characteristics according to intake valve exit flow field.
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Citation
Liu, X., Liu, R., Xiao, F., and Guan, L., "A Microscopic Analysis of In-Cylinder Swirl Generated by Directed Ports," SAE Technical Paper 941754, 1994, https://doi.org/10.4271/941754.Also In
Diesel Engines: Fuel Injection, Combustion, Emissions, and Exhaust Aftertreatment
Number: SP-1050; Published: 1994-09-01
Number: SP-1050; Published: 1994-09-01
References
- Arcoumanis C. Whitelaw J. H. Fluid Mechanics of Internal Combustion Engine - a Review Proc. I. Mech. E. 201 C1 1985 1 18
- Pinchon P. Modeling of Fluid Dynnamics and Combustion in Piston Engines International Symposium COMODIA 1990 31 47
- Arcoumanis C. Tanabe S. Swirl Generation by Helical Port SAE 890790
- Liu Rui-Lin Studies on Induction Flow Characteristics and Its Effect on Combustion in a Spark Ignition Engine Jilin University of Technology P.R. China 1993