Mathematical Modeling of the Scavenging Process in a Two-Stroke Diesel Engine

[+] Author and Article Information
A. Carapanayotis

Advanced Industrial Mechanical Systems, Ottawa, Ontario, Canada

M. Salcudean

Department of Mechanical Engineering, University of British Columbia, Vancouver, British Columbia, Canada

J. Eng. Gas Turbines Power 110(3), 538-546 (Jul 01, 1988) (9 pages) doi:10.1115/1.3240168 History: Received April 01, 1987; Online October 15, 2009


A multidimensional investigation of the scavenging process in the GM6V53T General Motors diesel engine has been carried out. This six-cylinder two-stroke engine features uniflow scavenging with four exhaust valves per cylinder, direct fuel injection, and turbocharging. The conservative equations of mass, energy, concentration, turbulence kinetic energy, and energy dissipation rate have been written in finite difference form and solved explicitly in time. The scavenging process has been studied by using a configuration of two exhaust valves as compared with the actual configuration, which has four exhaust valves. The computed flow characteristics and scavenging efficiency are very similar if the exhaust areas of the two different configurations are equivalent.

Copyright © 1988 by ASME
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