0
RESEARCH PAPERS

A Fundamental Criterion for the Application of Rotor Casing Treatment

[+] Author and Article Information
E. M. Greitzer

Massachusetts Institute of Technology; United Technologies Research Center, East Hartford, Conn.

J. P. Nikkanen, D. E. Haddad, R. S. Mazzawy

Pratt & Whitney Aircraft Group, Commercial Products Division, East Hartford, Conn.

H. D. Joslyn

United Technologies Research Center, East Hartford, Conn.

J. Fluids Eng 101(2), 237-243 (Jun 01, 1979) (7 pages) doi:10.1115/1.3448945 History: Received August 26, 1978; Online October 12, 2010

Abstract

An experimental investigation has been carried out on the influence of grooved casing treatment on the stall margin of a compressor rotor. Tests were conducted with two rotor builds having different solidities (but all other parameters identical) so that one of the rotors exhibited a wall, or casing, type of stall, while the other showed a blade stall. It was found that the casing treatment, when compared to the solid casing, was very effective in increasing the stall margin of the wall stall configuration, whereas there was little or no change in the stall point of the blade stall configuration. Detailed relative frame measurements of the rotor exit flow field were also taken as part of the program. These showed that in a wall stall situation, the use of casing treatment produced a substantial decrease in the relative total pressure defect, compared with the solid casing, while this was not true for the blade stall type of blading. The results of the experiments, both in overall measurements and in the detailed relative frame traverses, support the hypothesis that casing treatment is effective only in a situation in which a wall stall exists.

Copyright © 1979 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In