Inducing drop to bubble transformation via resonance in ultrasound

Duyang Zang, Lin Li, Wenli Di, Zehui Zhang, Changlin Ding, Zhen Chen, Wei Shen, Bernard P. Binks, Xingguo Geng

Research output: Contribution to journalArticleResearchpeer-review

8 Citations (Scopus)

Abstract

Bubble formation plays an important role in industries concerned with mineral flotation, food, cosmetics, and materials, which requires additional energy to produce the liquid–gas interfaces. A naturally observed fact is, owing to the effect of surface tension, a bubble film tends to retract to reduce its surface area. Here we show a “reverse” phenomenon whereby a drop is transformed into a bubble using acoustic levitation via acoustic resonance. Once the volume of the cavity encapsulated by the buckled film reaches a critical value V*, resonance occurs and an abrupt inflation is triggered, leading to the formation of a closed bubble. Experiments and simulations both reveal that V* decreases with increasing acoustic frequency, which agrees well with acoustic resonance theory. The results afford enlightening insights into acoustic resonance and highlight its role in manipulating buckled fluid–fluid interfaces, providing a reference for fabricating unique core–shell-like materials.

Original languageEnglish
Article number3546
Number of pages7
JournalNature Communications
Volume9
Issue number1
DOIs
Publication statusPublished - 1 Dec 2018

Cite this

Zang, D., Li, L., Di, W., Zhang, Z., Ding, C., Chen, Z., ... Geng, X. (2018). Inducing drop to bubble transformation via resonance in ultrasound. Nature Communications, 9(1), [3546]. https://doi.org/10.1038/s41467-018-05949-0
Zang, Duyang ; Li, Lin ; Di, Wenli ; Zhang, Zehui ; Ding, Changlin ; Chen, Zhen ; Shen, Wei ; Binks, Bernard P. ; Geng, Xingguo. / Inducing drop to bubble transformation via resonance in ultrasound. In: Nature Communications. 2018 ; Vol. 9, No. 1.
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Zang, D, Li, L, Di, W, Zhang, Z, Ding, C, Chen, Z, Shen, W, Binks, BP & Geng, X 2018, 'Inducing drop to bubble transformation via resonance in ultrasound', Nature Communications, vol. 9, no. 1, 3546. https://doi.org/10.1038/s41467-018-05949-0

Inducing drop to bubble transformation via resonance in ultrasound. / Zang, Duyang; Li, Lin; Di, Wenli; Zhang, Zehui; Ding, Changlin; Chen, Zhen; Shen, Wei; Binks, Bernard P.; Geng, Xingguo.

In: Nature Communications, Vol. 9, No. 1, 3546, 01.12.2018.

Research output: Contribution to journalArticleResearchpeer-review

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