Perturbation of a radially oscillating single-bubble by a micron-sized object

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• 作者：W. Montes-Quiroz^a ; F. Baillon^a ; O. Louisnard^a ; ^{louisnar@enstimac.fr} ; B. Boyer^b ; F. Espitalier^a
• 关键词：Acoustic cavitation ; Single bubble ; Levitation cell ; SBSL ; Bubble stability
• 刊名：Ultrasonics Sonochemistry
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：35
• 期：part_PA
• 页码：285-293
• 全文大小：1429 K
• 卷排序：35

文摘

A levitating single bubble is monitored acoustically by an external piezo-ceramics. The filtered signal allows diagnostics on the bubble state: pure argon bubble, disappearance. A bubble in the SBSL state is perturbed by approaching a 7 μm diameter carbon fiber. The bubble becomes unstable when the ber tip comes up within 3–4 times its maximum radius. The bubble disappearance is acoustically detected with a delay of 4000 periods.