Cloud cavitation induced by shock-bubble interaction in a viscoelastic solid

Ryota Oguri, Keita Ando

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

We experimentally study a shock-bubble interaction problem in a viscoelastic solid, which is relevant to shock wave lithotripsy. A gas bubble is produced by focusing an infrared laser pulse into gelatin. A spherical shock is then created, through rapid expansion of plasma that results from the laser focusing, in the vicinity of the gas bubble. The shock-bubble interaction is recorded by a CCD camera with flash illumination of a nanosecond green laser pulse. The observation captures cavitation inception in the gelatin under tension that results from acoustic impedance mismatching at the bubble wall. Namely, the shock reflects at the bubble interface as a rarefaction wave, which induces the nucleation of cavitation bubbles as a result of rupturing the gelatin.

本文言語English
論文番号012032
ジャーナルJournal of Physics: Conference Series
656
1
DOI
出版ステータスPublished - 2015 12 3
イベント9th International Symposium on Cavitation, CAV 2015 - Lausanne, Switzerland
継続期間: 2015 12 62015 12 10

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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