The Determination of End-Wall Blockage in Axial Compressors: A Comparison Between Various Approaches

[+] Author and Article Information
J. H. Horlock

Whittle Laboratory, Cambridge, United Kingdom

J. Turbomach 122(2), 218-224 (Dec 06, 1999) (7 pages) doi:10.1115/1.555452 History: Received December 06, 1999
Copyright © 2000 by ASME
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Smith’s experimental data for blockage as presented by Cumpsty, with some of his own data added (shown by larger symbols)
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Denton’s calculations of axial velocity profiles in the Cranfield compressor (after third rotor and third stator)
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Retained lift and corresponding values of K
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Simple blockage model used by Khalid et al.
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Predictions of change in displacement thickness compared with Smith’s data
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Predictions of change in displacement thickness as functions of blade row pressure rise coefficient Cps to: present analysis and correlation of Khalid et al.




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