Optimal Supersonic Ejector Designs

[+] Author and Article Information
J. C. Dutton, B. F. Carroll

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, Ill. 61801

J. Fluids Eng 108(4), 414-420 (Dec 01, 1986) (7 pages) doi:10.1115/1.3242597 History: Received July 19, 1985; Online October 26, 2009


A technique based on a one-dimensional constant area flow model has been developed for solving a large class of supersonic ejector optimization problems. In particular, the method determines the primary nozzle Mach number and ejector area ratio which optimizes either the entrainment ratio, compression ratio, or stagnation pressure ratio given values for the other two variables and the primary and secondary gas properties and stagnation temperatures. Design curves for the common case of diatomic primary and secondary gases of equal molecular weight and stagnation temperature are also presented and discussed.

Copyright © 1986 by ASME
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