Bubble proliferation in the cavitation field of a shock wave lithotripter

Yuri A. Pishchalnikov, James Williams, James A. McAteer

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Lithotripter shock waves (SWs) generated in non-degassed water at 0.5 and 2 Hz pulse repetition frequency (PRF) were characterized using a fiber-optic hydrophone. High-speed imaging captured the inertial growth-collapse-rebound cycle of cavitation bubbles, and continuous recording with a 60 fps camcorder was used to track bubble proliferation over successive SWs. Microbubbles that seeded the generation of bubble clouds formed by the breakup of cavitation jets and by bubble collapse following rebound. Microbubbles that persisted long enough served as cavitation nuclei for subsequent SWs, as such bubble clouds were enhanced at fast PRF. Visual tracking suggests that bubble clouds can originate from single bubbles.

Original languageEnglish
JournalJournal of the Acoustical Society of America
Volume130
Issue number2
DOIs
StatePublished - Aug 2011

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cavitation flow
shock waves
bubbles
repetition
optical tracking
hydrophones
Waves
Bubble
pulses
fiber optics
recording
high speed
cycles
nuclei
water

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Bubble proliferation in the cavitation field of a shock wave lithotripter. / Pishchalnikov, Yuri A.; Williams, James; McAteer, James A.

In: Journal of the Acoustical Society of America, Vol. 130, No. 2, 08.2011.

Research output: Contribution to journalArticle

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