OBSERVATION ON THE VIOLENT CAVITATION VIBRATIONS INDUCED ON HYDROFOIL.

Y. Ito, H. Soyama, R. Oba

Research output: Contribution to journalArticlepeer-review

Abstract

To make clear the mechanism of catastrophic violent vibrations, the cavitation aspects, the detected accelerations and the acoustic pressure pulses associated with the violent vibrations were systematically observed in a water flow around a Clark Y 11. 7 hydrofoil at various cavitation numbers, angles of incidence and flow velocities. The violent vibrations are accompanied by periodic cavity separation on the hydrofoil of about 17-25 Hz frequency, while the acceleration waves and the pressure pulses beat with almost the same frequency, which is believed to be the beat frequency of the hydrofoil followed by the Karman vortices.

Original languageEnglish
Pages (from-to)35-47
Number of pages13
JournalReports of the Institute High Speed Mechanics, Tohoku University
Volume55
Publication statusPublished - 1988 Jan 1

ASJC Scopus subject areas

  • Engineering(all)

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