Self-propelled motion of a fluid droplet under chemical reaction

被引：59
|
作者：
Yabunaka, S. [1 ]
Ohta, T. [1 ]
Yoshinaga, N. [2 ]
机构：
[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[2] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
JOURNAL OF CHEMICAL PHYSICS | 2012年 / 136卷 / 07期
关键词：
REACTION-DIFFUSION SYSTEMS; INTERFACE;
D O I：
10.1063/1.3685805
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We study self-propelled dynamics of a droplet due to a Marangoni effect and chemical reactions in a binary fluid with a dilute third component of chemical product which affects the interfacial energy of a droplet. The equation for the migration velocity of the center of mass of a droplet is derived in the limit of an infinitesimally thin interface. We found that there is a bifurcation from a motionless state to a propagating state of droplet by changing the strength of the Marangoni effect. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3685805]
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页数：8
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