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Observations of Cavitation on a Three-Dimensional Oscillating Hydrofoil

Hart, D. P. and Brennen, C. E. and Acosta, A. J. (1990) Observations of Cavitation on a Three-Dimensional Oscillating Hydrofoil. In: Cavitation and Multiphase Flow Forum (25th : 1990 : Toronto, Ontario). Fluids Engineering Division. Vol.FED-98. No.98. American Society of Mechanical Engineers , New York, pp. 49-52. ISBN 079180495X

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A test apparatus was designed and constructed to observe the effect of sinusoidal pitching oscillations on the cavitation of three-dimensional hydrofoils. The apparatus is capable of oscillating hydrofoils at a rate up to 50 Hz and provides for adjustments in oscillation amplitude and mean angle of attack. Observations of the effect of pitching oscillation on cavitation have been made for a NACA 64-309 (modified) hydrofoil operating at its designed mean angle of attack of 7 degrees with an oscillation amplitude of 2 degrees. Photographs illustrating the interaction between natural cavity shedding frequencies and the foil reduced frequency are included.

Item Type:Book Section
Additional Information:The authors are grateful for the support of the Office of Naval Research under grant number N00167-85-K-0165. We should also like to thank Professor S. Green at the University of British Columbia for his help in initiating this project and S. Ceccio for his continuing support.
Funding AgencyGrant Number
Office of Naval Research (ONR)N000167-85-K-0165
Record Number:CaltechAUTHORS:HARasmecmff90
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:211
Deposited By: Christopher Brennen
Deposited On:10 Dec 2004
Last Modified:24 Dec 2014 17:26

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