Shape matters: Near-field fluid mechanics dominate the collective motions of ellipsoidal squirmers

K. Kyoya, D. Matsunaga, Y. Imai, T. Omori, T. Ishikawa

研究成果: Article査読

17 被引用数 (Scopus)

抄録

Microswimmers show a variety of collective motions. Despite extensive study, questions remain regarding the role of near-field fluid mechanics in collective motion. In this paper, we describe precisely the Stokes flow around hydrodynamically interacting ellipsoidal squirmers in a monolayer suspension. The results showed that various collective motions, such as ordering, aggregation, and whirls, are dominated by the swimming mode and the aspect ratio. The collective motions are mainly induced by near-field fluid mechanics, despite Stokes flow propagation over a long range. These results emphasize the importance of particle shape in collective motion.

本文言語English
論文番号063027
ジャーナルPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
92
6
DOI
出版ステータスPublished - 2015 12 28

ASJC Scopus subject areas

  • 統計物理学および非線形物理学
  • 統計学および確率
  • 凝縮系物理学

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