Detailed Flow Measurements and Predictions for a Three-Stage Transonic Fan

[+] Author and Article Information
W. J. Calvert, A. W. Stapleton

Defence Research Agency, Pyestock, Farnborough, Hampshire, United Kingdom

J. Turbomach 116(2), 298-305 (Apr 01, 1994) (8 pages) doi:10.1115/1.2928364 History: Received February 12, 1993; Online June 09, 2008


Detailed flow measurements were taken at DRA Pyestock on a Rolls-Royce three-stage transonic research fan using advanced laser transit velocimetry and holography techniques to supplement the fixed pressure and temperature instrumentation. The results have been compared with predictions using the DRA S1-S2 quasi-three-dimensional flow calculation system at a range of speeds. The agreement was generally encouraging, both for the overall performance and for details of the internal flow such as positions of shock waves. Taken together with the computational efficiency of the calculations and previous experience on single-stage transonic fans and core compressors, this establishes the S1-S2 system as a viable design tool for future multistage transonic fans.

Copyright © 1994 by The American Society of Mechanical Engineers
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