Interfacial instability and atomization behavior on acoustically levitated droplets for further stable liquid manipulation were investigated. We visualized the atomization behavior of water and ethanol droplets. Atomization was clearly affected by the difference in surface tension. The pressure difference between the inside and the outside of the droplet was estimated from rapid droplet deformation immediately before its atomization. Finally, the capillary wave on the droplet surface that can trigger atomization was quantified and elucidated with the theory. The size distribution of atomized daughter droplets was compared with the length scale of the capillary wave on the droplet surface.

中文翻译：

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悬浮液滴的声诱发破裂

为了进一步稳定液体操作，研究了悬浮在声悬浮液滴上的界面不稳定性和雾化行为。我们可视化了水和乙醇液滴的雾化行为。雾化显然受到表面张力差异的影响。液滴内部和外部之间的压力差是根据液滴即将雾化之前的快速变形来估算的。最后，用该理论量化并阐明了液滴表面上可触发雾化的毛细波。将雾化的子液滴的尺寸分布与液滴表面上毛细管波的长度尺度进行比较。