MEASUREMENTS OF HYDRODYNAMIC NOISE FROM SUBMERGED HYDROFOILS

Results are given of an experimental study of hydrodynamic noise conducted in the High-Speed Water Tunnel of the California Institute of Technology. Measurements are made of some basic characteristics of noise radiated from submerged hydrofoils, both fully wetted and cavitating. In measurements on three types of hydrofoil cavitation due to blade surface, wake, and trailing vortex, foil vibration is found important only in blade surface cavitation. An increase in angle of attack of a hydrofoil produced a slight increase in noise at high frequencies but an increase in surface roughness gave a more significant increase over a wide frequency range. Trailing vortex cavitation is a relatively weak source of noise.

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  • Corporate Authors:

    Acoustical Society of America

    335 East 45th Street
    New York, NY  United States  10017
  • Authors:
    • BARKER, S J
  • Publication Date: 1976-5

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Filing Info

  • Accession Number: 00156312
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jun 22 1977 12:00AM