Simple swimmer at low Reynolds number: Three linked spheres

被引：414

作者：

Najafi, A ^{[1
]}

Golestanian, R

机构：

[1] Inst Adv Studies Basic Sci, Zanjan 45195159, Iran

[2] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW E | 2004年 / 69卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.69.062901

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：

We propose a very simple one-dimensional swimmer consisting of three spheres that are linked by rigid rods whose lengths can change between two values. With a periodic motion in a nonreciprocal fashion, which breaks the time-reversal symmetry as well as the translational symmetry, we show that the model device can swim at low Reynolds number. This model system could be used in constructing molecular-sized machines.

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