Self-Synchronous Swinging Motion of a Pair of Autonomous Droplets
Self-Synchronous Swinging Motion of a Pair of Autonomous Droplets
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DOI：
10.1021/acsomega.9b01533
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发表时间：
2019-07
期刊：
影响因子：
4.1
通讯作者：
Shiho Sato;Hiroki Sakuta;K. Sadakane;K. Yoshikawa
中科院分区：
文献类型：
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作者：
Shiho Sato;Hiroki Sakuta;K. Sadakane;K. Yoshikawa
报道了两个自运行的油滴在水相中的同步运动。我们描述了我们对一对厘米大小的硝基苯液滴之间的干扰进行来回运动的水路观察的结果。当一个细长的矩形玻璃毛细管被放置在水道的中点时，两个液滴表现出摆动型的同步。此外，当毛细管从水路中心移开时，产生这种来回运动的周期性的2：1同步振荡。我们讨论了同步摆动运动的出现对液滴的基础上一个简单的数学模型与非线性耦合微分方程的机制。
Synchronized motion between two self-running oil droplets floating on an aqueous phase is reported. We describe the results of our observation on the interference between a pair of centimeter-sized nitrobenzene droplets undergoing back-and-forth motion on a waterway. The two droplets exhibit a swinging type of synchronization when a thin glass capillary is placed at the midpoint of the waterway with a narrow rectangle shape. Furthermore, 2:1 synchronized oscillation of the periodicities of this back-and-forth motion is generated when the capillary is shifted away from the center of the waterway. We discuss the mechanism of the emergence of synchronized swinging motion for the pair of droplets based on a simple mathematical model with nonlinear coupled differential equations.