On the dynamics and acoustics of cloud cavitation on an oscillating hydrofoil

Book · Fri Dec 30 23:00:00 EST 1994

OSTI ID:100921

McKenney, E A; Brennen, C E ^[1]

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1. California Inst. of Tech., Pasadena, CA (United States). Dept. of Mechanical Engineering

Observations have been made of the growth and collapse of surface and cloud cavitation on a finite aspect ratio hydrofoil oscillating in pitch. The cavitation was recorded using both still and high-speed motion picture photography, and the variations with cavitation number and reduced frequency of oscillation were investigated. The noise generated by the cavity collapse was also measured and analyzed. The acoustic signals associated with individual cavity collapse events have been synchronized with the motion pictures, providing insights into the correspondence between the flow structures involved in the cavity collapse process and the sound generated by them.

• OSTI ID: 100921
• Report Number(s): CONF-940659--; ISBN 0-7918-1373-8
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ACOUSTICS
AIRFOILS
CAVITATION
EXPERIMENTAL DATA
FLOW VISUALIZATION
FLUID MECHANICS
NOISE
TEST FACILITIES