Rotational motion of a droplet induced by interfacial tension
Rotational motion of a droplet induced by interfacial tension
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界面张力引起的液滴旋转运动
DOI：
10.1103/physreve.87.013009
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发表时间：
2013
影响因子：
2.4
通讯作者：
Natsuhiko Yoashinaga
中科院分区：
文献类型：
--
作者：
Ken R Nagai;Fumi Takabatake;Yuataka Sumino;Hiroyuki Kitahata;Masatoshi Ichikawa;Natsuhiko Yoashinaga
在二维系统中分析由马兰戈尼流引起的液滴的自发旋转。考虑在界面处提供表面活性剂的具有小颗粒的液滴。我们使用斯托克斯方程计算了液滴周围的流场，发现平流非线性破坏了旋转的对称性。理论计算表明，当液滴半径合适时，液滴会自发旋转。通过与实验的对比验证了理论结果。
Spontaneous rotation of a droplet induced by the Marangoni flow is analyzed in a two-dimensional system. The droplet with the small particle which supplies a surfactant at the interface is considered. We calculated flow field around the droplet using the Stokes equation and found that advective nonlinearity breaks symmetry for rotation. Theoretical calculation indicates that the droplet spontaneously rotates when the radius of the droplet is an appropriate size. The theoretical results were validated through comparison with the experiments.