Electrohydrodynamics of Drops and Vesicles
Electrohydrodynamics of Drops and Vesicles
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DOI：
10.1146/annurev-fluid-122316-050120
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发表时间：
2019-01
影响因子：
27.7
通讯作者：
Petia M. Vlahovska
中科院分区：
文献类型：
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作者：
Petia M. Vlahovska
1969年，J.R. Melcher和G.I.泰勒定义了电流体力学领域。五十年过去了，弱导电（漏电介质）流体与电场的相互作用继续产生有趣的现象。在均匀电场中的液滴的原型系统已经揭示了强电场中的显著动态，诸如破坏稳定性的不稳定性（例如，Quincke旋转）和从下降赤道流。本文综述了近年来电场中流体粒子（液滴和囊泡）的实验和理论研究，重点是瞬态动力学和极端变形。一个理论框架来处理近球形形状的时间演化。该模型已成功地描述了在电场中的囊泡（封闭的脂质膜）的动力学，突出了更广泛的适用范围的漏电介质的方法。
The 1969 review by J.R. Melcher and G.I. Taylor defined the field of electrohydrodynamics. Fifty years on, the interaction of weakly conducting (leaky dielectric) fluids with electric fields continues to yield intriguing phenomena. The prototypical system of a drop in a uniform electric field has revealed remarkable dynamics in strong electric fields such as symmetry-breaking instabilities (e.g., Quincke rotation) and streaming from the drop equator. This review summarizes recent experimental and theoretical studies in the area of fluid particles (drop and vesicles) in electric fields, with a focus on the transient dynamics and extreme deformations. A theoretical framework to treat the time evolution of nearly spherical shapes is provided. The model has been successful in describing the dynamics of vesicles (closed lipid membranes) in an electric field, highlighting the broader range of applicability of the leaky dielectric approach.