On the Starting Characteristics of Supersonic Ejector Systems

[+] Author and Article Information
A. L. Addy, W. L. Chow

Department of Mechanical Engineering, University of Illinois, Urbana, Ill.

J. Basic Eng 86(4), 861-868 (Dec 01, 1964) (8 pages) doi:10.1115/1.3655977 History: Received February 20, 1964; Online November 03, 2011


The transient pumping characteristics of supersonic ejector systems are investigated both theoretically and experimentally. The theoretical analysis of this transient problem is based on quasi-steady flow concepts. The steady-state ejector analysis, upon which the present study must be based, considers the basic interaction between the primary and secondary streams as well as the viscous mixing effects which are the predominant flow mechanism at small secondary flow rates. The results of applying this steady-state analysis to the present problem are presented and shown to be in excellent agreement with experimentally observed ejector starting characteristics.

Copyright Ā© 1964 by ASME
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