Optical Observation Of A Collapsing Bubble Adhering To A Piezoelectric Transducer Surface Under Ultrasound Field

  • K. Yoshida
  • S. Nakatani
  • Y. Watanabe
Conference paper
Part of the Acoustical Imaging book series (ACIM, volume 29)

Abstract

The detailed behavior of a single bubble adhering to a solid surface was optically observed using an ultra-high-speed camera (1,000,000 frames/sec) in order to clarify the mechanical effect of micro-bubbles. The changing pressure between the bubble and the surface was simultaneously observed by a thin piezoelectric transducer on the surface. When the bubble collapsed, we confirmed the radiation of a micro-jet from the bubble, which was followed by a counter jet. An impulse positive pressure applied to the surface was also observed synchronously with the collapse. This pressure seems to come from the jet flow or the violent vibration of the bubble.

Key words

Micro-jet Micro-bubble Ultra-high-speed camera Piezoelectric transducer 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    T. G. Leighton, “The Acoustic Bubble,” Academic Press, London, 1994.Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • K. Yoshida
    • 1
  • S. Nakatani
    • 1
  • Y. Watanabe
    • 1
  1. 1.Faculty of EngineeringDoshisha UniversityKyotanabeJapan

Personalised recommendations