Modeling Tip Clearance Effects in Multistage Axial Compressors

[+] Author and Article Information
S. Baghdadi

Pratt & Whitney, United Technologies, West Palm Beach, FL 33410

J. Turbomach 118(4), 697-705 (Oct 01, 1996) (9 pages) doi:10.1115/1.2840925 History: Received March 10, 1995; Online January 29, 2008


A variety of techniques for simulating the effects of rotor tip clearances in multistage axial compressors is discussed. Proper recognition of stage coupling and rematching effects is shown to be key to successful modeling of the overall behavior of actual engine compression systems. The application of a relatively simple one-dimensional unsteady row-by-row systems analysis is presented and shown to compare well to test data from several engine compressors.

Copyright © 1996 by The American Society of Mechanical Engineers
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