6 citations · 6 across the 1 of their papers we have counts for
7 papers
Imperfect bifurcation in the rotation of a propeller-shaped camphor rotor
Yuki Koyano, Hiroyuki Kitahata
We investigated the bifurcation structure on the self-propelled motion of a camphor rotor at a water surface. The center of the camphor rotor was fixed by the axis, and it showed r…
Diffusion enhancement in a levitated droplet via oscillatory deformation
Yuki Koyano, Hiroyuki Kitahata, Koji Hasegawa +5
Recent experimental results indicate that mixing is enhanced by a reciprocal flow induced inside a levitated droplet with an oscillatory deformation [T. Watanabe et al. Sci. Rep. 8…
Spontaneous motion of a camphor particle with a triangular modification from a circle
Hiroyuki Kitahata, Yuki Koyano
The spontaneous motion of a camphor particle with a slight modification from a circle is investigated. The effect of the shape on the motion is examined by the perturbation method.…
On a simple model that explains inversion of a self-propelled rotor under periodic stop and release operations
Yuki Koyano, Hiroyuki Kitahata, Satoshi Nakata +1
We propose a simple mathematical model that describes the time evolution of a self-propelled object on a liquid surface using such variables as the object location, the surface con…
Diffusion in crowded colloids of particles cyclically changing their shapes
Yuki Koyano, Hiroyuki Kitahata, Alexander S. Mikhailov
A simple model of an active colloid consisting of dumbbell-shaped particles that cyclically change their length without propelling themselves is proposed and analyzed. At nanoscale…
Bifurcation in the angular velocity of a circular disk propelled by symmetrically distributed camphor pills
Yuki Koyano, Hiroyuki Kitahata, Marian Gryciuk +4
We studied rotation of a disk propelled by a number of camphor pills symmetrically distributed at its edge. The disk was put on a water surface so that it could rotate around a ver…