Droplets on liquid surfaces: Dual equilibrium states and their energy barrier

被引：15
|
作者：
Shabani, Roxana [1 ]
Kumar, Ranganathan [1 ]
Cho, Hyoung J. [1 ,2 ]
机构：
[1] Univ Cent Florida, Dept Mech & Aerosp Engn, Orlando, FL 32816 USA
[2] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 440746, South Korea
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 18期
基金：
美国国家科学基金会;
关键词：
FLUID INTERFACES; SMALL PARTICLES; NONCOALESCENCE; FORCE;
D O I：
10.1063/1.4804242
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Floating aqueous droplets were formed at oil-air interface, and two stable configurations of (i) non-coalescent droplet and (ii) cap/bead droplet were observed. General solutions for energy and force analysis were obtained for both configurations and were shown to be in good agreement with the experimental observations. The energy barrier obtained for transition from configuration (i) to configuration (ii) was correlated to the droplet release height and the probability of non-coalescent droplet formation. (C) 2013 AIP Publishing LLC.
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页数：4
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