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Effective diffusion coefficient including the Marangoni effect
Hiroyuki Kitahata, Natsuhiko Yoshinaga
Surface-active molecules supplied from a particle fixed at the water surface create a spatial gradient of the molecule concentration, resulting in Marangoni convection. Convective…
General Criteria for Determining Rotation or Oscillation in a Two-dimensional Axisymmetric System
Yuki Koyano, Natsuhiko Yoshinaga, Hiroyuki Kitahata
A self-propelled particle in a two-dimensional axisymmetric system, such as a particle in a central force field or confined in a circular region, may show rotational or oscillatory…
Self-propelled motion of a fluid droplet under chemical reaction
Shunsuke Yabunaka, Takao Ohta, Natsuhiko Yoshinaga
We study self-propelled dynamics of a droplet due to a Marangoni effect and chemical reactions in a binary fluid with a dilute third component of chemical product which affects the…