Spontaneous motion of an elliptic camphor particle

被引：39

作者：

Kitahata, Hiroyuki ^{[1
,2
]}

Iida, Keita ^{[3
]}

Nagayama, Masaharu ^{[4
,5
]}

机构：

[1] Chiba Univ, Grad Sch Sci, Dept Phys, Chiba 2638522, Japan

[2] JST, PRESTO, Saitama 3320012, Japan

[3] Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan

[4] Hokkaido Univ, Res Inst Elect Sci, Sapporo, Hokkaido 0010020, Japan

[5] JST, CREST, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW E | 2013年 / 87卷 / 01期

关键词：

MODEL; SHAPE;

D O I：

10.1103/PhysRevE.87.010901

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The coupling between deformation and motion in a self-propelled system has attracted broader interest. In the present study, we consider an elliptic camphor particle for investigating the effect of particle shape on spontaneous motion. It is concluded that the symmetric spatial distribution of camphor molecules at the water surface becomes unstable first in the direction of a short axis, which induces the camphor disk motion in this direction. Experimental results also support the theoretical analysis. From the present results, we suggest that when an elliptic particle supplies surface-active molecules to the water surface, the particle can exhibit translational motion only in the short-axis direction. DOI: 10.1103/PhysRevE.87.010901

引用

页数：4

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