Properties of a semi-dilute suspension of swimming micro-organisms

Takuji Ishikawa, Takami Yamaguchi, T. J. Pedley

研究成果: Conference contribution

抄録

In this paper, we review our recent researches on a suspension of swimming micro-organisms. Firstly, interactions between two swimming micro-organisms are discussed. We introduce our experimental works using Paramecium caudatum, and numerical works using a squirmer model. The results show that changes in direction between two swimming cells are induced mainly by hydrodynamic forces and that biological interaction is a minor factor. Secondly, the rheological and diffusive properties of a semi-dilute suspension of squirmers are discussed. We introduce our numerical works and show that a suspension of bottom-heavy squirmers has strong non-Newtonian properties. We also show that the spreading of squirmers is correctly described as a diffusive process after a sufficiently long time, even though all the movements of the squirmers are deterministically calculated.

本文言語English
ホスト出版物のタイトルBio-Mechanisms of Swimming and Flying
ホスト出版物のサブタイトルFluid Dynamics, Biomimetic Robots, and Sports Science
出版社Springer-Verlag Tokyo
ページ17-28
ページ数12
ISBN(印刷版)9784431733799
出版ステータスPublished - 2008 1 1
イベント3rd International Symposium on Aero Aqua Bio-Mechanisms, ISABMEC 2006 - Okinawa, Japan
継続期間: 2006 7 32006 7 7

出版物シリーズ

名前Bio-Mechanisms of Swimming and Flying: Fluid Dynamics, Biomimetic Robots, and Sports Science

Other

Other3rd International Symposium on Aero Aqua Bio-Mechanisms, ISABMEC 2006
国/地域Japan
CityOkinawa
Period06/7/306/7/7

ASJC Scopus subject areas

  • 生体医工学

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