Abrupt Cavity Separations on Cavitating Hydrofoils

Yukio Ito, Risaburou Oba, Hitoshi Soyama, Tsutomu Narasaka, Ryoichiro Oshima

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

To improve the physical understanding of the fatal “violent vibration” in the near-transition range, the “abrupt cavity separations” associated with the vibration were precisely observed in a water flow around two-dimensional hydrofoils, for various angles of incidence and cavitation numbers, by means of high-speed photography. The cavity separation is a periodic phenomenon that the subcavitating cavity and the supercavitating cavity form alternatively between several spanwise locations, accompanied with a bubble cloud shedding from the subcavitation cavity. The cavity separation line becomes highly distorted immediately after the shedding.

Original languageEnglish
Pages (from-to)1555-1559
Number of pages5
JournalTransactions of the Japan Society of Mechanical Engineers Series B
Volume54
Issue number503
DOIs
Publication statusPublished - 1988

Keywords

  • Abrupt Cavity Separation
  • Attached Cavitation
  • Bubble Cloud
  • Cavitation
  • Hydrofoil
  • Transition Region
  • Violent Vibration

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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