Publications

A03 YOSHINAGA, Natsuhiko |Proposed Research Projects (2014-2015)

Paper | Original Paper

2015

Yuki Koyano, Natsuhiko Yoshinaga, and *Hiroyuki Kitahata,
General criteria for determining rotation or oscillation in a two-dimensional axisymmetric system,
Journal of Chemical Physics 143, 014117/1-6 (2015).

[Summary] 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 motion. These motions do not require asymmetry of the particle or the boundary, but arise through spontaneous symmetry breaking.We propose a generic model for a self-propelled particle in a two-dimensional axisymmetric system. A weakly nonlinear analysis establishes criteria for determining rotational or oscillatory motion.

International Conferences

2015

Oral (contributed)

*Natsuhiko Yoshinaga,
Self-propulsive motion and deformation of a chemically-driven drop,
68th Annual Meeting of the APS Division of Fluid Dynamics (Nov. 22-24, 2015), Boston, USA.

Poster

*Natsuhiko Yoshinaga,
The interaction of self-propelled drops with deformation,
Lorentz Center International Center for Workshops in the Sciences, “Active Liquids” (Sep. 21-25, 2015), Lorentz Center, Leiden, Netherland.

*Natsuhiko Yoshinaga,
Spontaneous motion and deformation of a self-propelled droplet,
International Symposium on Fluctuation and Structure out of Equilibrium 2015 (SFS2015) (Aug. 20-23, 2015), Kyoto, Japan.

*Yuki Koyano, Natsuhiko Yoshinaga, and Hiroyuki Kitahata,
Rotation and Oscillation of a Self-Propelled particle in a Two-Dimensional Axisymmetric System,
International Symposium on Fluctuation and Structure out of Equilibrium 2015 (SFS2015) (Aug. 20-23, 2015), Kyoto, Japan.

Invited

*Natsuhiko Yoshinaga,
Self-propulsion of a droplet: motility and deformation,
The Ninth IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory (Apr. 1-4, 2015), University of Georgia, Athens, USA.

2014

Oral (contributed)

*Natsuhiko Yoshinaga,
Mechanics of active gels and spontaneous motion of droplets as biologically-motivated systems,
RIMS International Conference: “Mathematical Challenge to a New Phase of Materials Science” (Aug. 4-8, 2014), Kyoto, Japan.

*Natsuhiko Yoshinaga,
Spontaneous motion and deformation of a droplet driven by chemical reaction,
RIMS International Conference: “Sapporo summer conference on dynamics of patterns in materials science” (Jul. 31 – Aug. 2, 2014), Sapporo, Japan.

*Natsuhiko Yoshinaga,
Dynamics of pattern formation in nonequilibrium soft materials,
Pattern Formation: mathematics and materials (Apr. 29-30, 2014), Canberra, Australia.