Hydrodynamic Performance and Cavitation of an Open Propeller in a Simulated Ice-Blocked Flow

[+] Author and Article Information
D. Walker, N. Bose

Memorial University of Newfoundland, St. John’s, Newfoundland, Canada A1B 3X5

H. Yamaguchi

Institute for Marine Dynamics, St. John’s, Newfoundland, Canada

J. Offshore Mech. Arct. Eng 116(3), 185-189 (Aug 01, 1994) (5 pages) doi:10.1115/1.2920149 History: Received January 01, 1993; Revised April 15, 1994; Online June 12, 2008


Experiments were done on a 200-mm-dia open propeller behind a simulated ice blockage in a cavitation tunnel. The propeller performance in uniform flow and blocked flow is contrasted over a range of advance coefficients and at different cavitation numbers. Mean thrust and torque coefficients are presented. The types of cavitation, and its intermittent nature over a cycle of operation, are reported. The experiments indicate the likelihood of cavitation at full scale for blocked conditions and illustrate the effects of cavitation on mean values of thrust and torque.

Copyright © 1994 by The American Society of Mechanical Engineers
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