Some aspects of the motion of two laser-produced cavitation bubbles near a free surface

Yukio Tomita, Tetsuya Kodama

Research output: Chapter in Book/Report/Conference proceedingChapter

7 Citations (Scopus)

Abstract

The motion of two cavitation bubbles produced by lasers near a free surface was studied experimentally using high-speed photography. It was found that different types of behaviour occurred when two cavitation bubbles collapsed near a free surface depending on the bubble size ratio and the inter-bubble and bubble-boundary distances. These factors influenced the pattern of the motion of the two bubbles, resulting in several modes of jet formation. Two liquid jets were formed in each bubble, advancing in opposite directions and impacting each other. When a much smaller bubble collapsed near a large bubble, a pinch-off phenomenon occurred, following the separation of the smaller bubble in two parts.

Original languageEnglish
Title of host publicationIUTAM SYMPOSIUM ON FREE SURFACE FLOWS
EditorsA.C. KING, YD. SHIKHMURZAEV
Pages303-310
Number of pages8
DOIs
Publication statusPublished - 2001 Dec 1
Externally publishedYes

Publication series

NameFluid Mechanics and its Applications
Volume62
ISSN (Print)0926-5112

Keywords

  • Bjerknes force
  • Bubble migration
  • Cavitation
  • Free surface
  • High-speed photography
  • Laser
  • Liquid jet
  • Two bubbles
  • Vortex ring

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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