Masaharu Nagayama

A theoretical study on the unidirectional motion of a camphor disk



Abstract

We consider self-sustaining motions of a camphor disk in an annular water
channel. The nature of the self-motion is reproduced by numerical computations 
using a mathematical model that incorporates the distribution of 
camphor layer around the disk and the viscosity of the aqueous phase.
Furthermore, the existence and stability of the unidirectional motion of 
the camphor disk depending on the viscosity of aqueous phase are analyzed 
numerically.