Rotational motion of a droplet induced by interfacial tension

Ken H. Nagai, Fumi Takabatake, Yutaka Sumino, Hiroyuki Kitahata, Masatoshi Ichikawa, and Natsuhiko Yoshinaga
Phys. Rev. E 87, 013009 – Published 9 January 2013

Abstract

Spontaneous rotation of a droplet induced by the Marangoni flow is analyzed in a two-dimensional system. The droplet with the small particle which supplies a surfactant at the interface is considered. We calculated flow field around the droplet using the Stokes equation and found that advective nonlinearity breaks symmetry for rotation. Theoretical calculation indicates that the droplet spontaneously rotates when the radius of the droplet is an appropriate size. The theoretical results were validated through comparison with the experiments.

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  • Received 5 December 2011

DOI:https://doi.org/10.1103/PhysRevE.87.013009

©2013 American Physical Society

Authors & Affiliations

Ken H. Nagai1,*, Fumi Takabatake2, Yutaka Sumino3, Hiroyuki Kitahata4,5, Masatoshi Ichikawa2, and Natsuhiko Yoshinaga6

  • 1Department of Physics, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
  • 2Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
  • 3Faculty of Education, Aichi University of Education, Aichi 448-8542, Japan
  • 4Department of Physics, Graduate School of Science, Chiba University, Chiba 263-8522, Japan
  • 5PRESTO, Japan Science and Technology Agency, Saitama 332-0012, Japan
  • 6WPI - Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan

  • *nagai@daisy.phys.s.u-tokyo.ac.jp

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Vol. 87, Iss. 1 — January 2013

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