Supercavitating Cascade Analysis Based on Momentum Theorem

[+] Author and Article Information
R. Oba

Institute of High-Speed Mechanics, Tohoku University, Sendai, Japan

T. Ikohagi

Doctoral Course in Engineering, Tohoku University, Sendai, Japan

J. Fluids Eng 95(1), 113-121 (Mar 01, 1973) (9 pages) doi:10.1115/1.3446943 History: Received August 02, 1972; Online October 12, 2010


An “accurate” analysis based on momentum theorem is proposed for finite cavity cascade foils of arbitrary shape. Some numerical results are given which show that (i) In the existing cascade flow models, the momentum theorem is not always satisfied. Therefore, the cavity drag contains an error. (ii) Low drag cascade foils are considerably cambered in the rear half and should be used within a certain required incidence limit.

Copyright © 1973 by ASME
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