Chapter 14: Theory of Active Particles and Drops Driven by Chemical Reactions: The Role of Hydrodynamics on Self-propulsion and Collective Behaviours

N. Yoshinaga, S. Yabunaka

研究成果: Chapter

1 被引用数 (Scopus)

抄録

In this chapter, we discuss the mechanism of self-propulsion using simple theoretical models. Particular focus is placed on the roles of hydrodynamic flow on self-propelled particles and drops. We also theoretically investigate self-propelled motion of chemically driven drops. The motion is driven by hydrodynamic flow resulting from the Marangoni effect and occurs for drops under an isotropic chemical reaction rather than under an anisotropic temperature and/or concentration gradient. This occurs even under the low Reynolds number in which fluid flow is described by the linear equations. We propose the mechanism of spontaneous symmetry breaking where hydrodynamics plays a significant role when coupled with nonlinear effects. We summarize the basic theoretical aspects of this phenomena including the reaction-diffusion equations and the hydrodynamic equation. We also discuss the collective behaviours of the drops by analysing the interaction between the self-propelled drops.

本文言語English
ホスト出版物のタイトルSelf-organized Motion
ホスト出版物のサブタイトルPhysicochemical Design based on Nonlinear Dynamics
編集者Istvan Lagzi, Veronique Pimienta, Nobuhiko J. Suematsu, Satoshi Nakata, Hiroyuki Kitahata
出版社Royal Society of Chemistry
ページ339-365
ページ数27
14
DOI
出版ステータスPublished - 2019

出版物シリーズ

名前RSC Theoretical and Computational Chemistry Series
番号14
2019-January
ISSN(印刷版)2041-3181
ISSN(電子版)2041-319X

ASJC Scopus subject areas

  • 化学 (全般)
  • コンピュータ サイエンスの応用

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