Coherent structures in monolayers of swimming particles

被引：168

作者：

Ishikawa, Takuji ^{[1
]}

Pedley, T. J. ^{[2
]}

机构：

[1] Tohoku Univ, Dept Bioengn & Robot, Sendai, Miyagi 9808579, Japan

[2] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.100.088103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report various types of coherent structures in suspensions of spherical particles swimming in a monolayer. We solve the fluid dynamics precisely from far-field hydrodynamic interactions to lubrication between two near-contact surfaces. The simulation results clearly illustrate that coherent structures, such as aggregation, mesoscale spatiotemporal motion, and band formation, can be generated by purely hydrodynamic interactions.

引用

页数：4

共 21 条

[1] SPHERICAL ENVELOPE APPROACH TO CILIARY PROPULSION [J].

BLAKE, JR .

JOURNAL OF FLUID MECHANICS, 1971, 46 (MAR15) :199-&

[2] DYNAMIC SIMULATION OF HYDRODYNAMICALLY INTERACTING SUSPENSIONS [J].

BRADY, JF ;

PHILLIPS, RJ ;

LESTER, JC ;

BOSSIS, G .

JOURNAL OF FLUID MECHANICS, 1988, 195 :257-280

[3] ZONED MIGRATION OF MAGNETOTACTIC BACTERIA [J].

CARLILE, MJ ;

DUDENEY, AWL ;

HEBENSTREIT, BK ;

HEEREMA, RH .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1987, 67 (03) :291-294

[4] Self-concentration and large-scale coherence in bacterial dynamics [J].

Dombrowski, C ;

Cisneros, L ;

Chatkaew, S ;

Goldstein, RE ;

Kessler, JO .

PHYSICAL REVIEW LETTERS, 2004, 93 (09) :098103-1

[5] Dynamic simulation of suspensions of non-Brownian hard spheres [J].

Dratler, DI ;

Schowalter, WR .

JOURNAL OF FLUID MECHANICS, 1996, 325 :53-77

[6] HYDRODYNAMIC-FORCES AND BAND FORMATION IN SWIMMING MAGNETOTACTIC BACTERIA [J].

GUELL, DC ;

BRENNER, H ;

FRANKEL, RB ;

HARTMAN, H .

JOURNAL OF THEORETICAL BIOLOGY, 1988, 135 (04) :525-542

[7] Rheology of active-particle suspensions [J].

Hatwalne, Y ;

Ramaswamy, S ;

Rao, M ;

Simha, RA .

PHYSICAL REVIEW LETTERS, 2004, 92 (11) :118101-1

[8]

HERNANDESORTIZ JP, 2005, PHYS REV LETT, V95

[9]

ISHIKAWA T, IN PRESS J FLUID MEC

[10] The rheology of a semi-dilute suspension of swimming model micro-organisms [J].

Ishikawa, Takuji ;

Pedley, T. J. .

JOURNAL OF FLUID MECHANICS, 2007, 588 :399-435

← 1 2 3 →