Dynamic labyrinthine pattern in an active liquid film.
We report the generation of a dynamic labyrinthine pattern in an active alcohol film. A dynamic labyrinthine pattern is formed along the contact line of air/pentanol/aqueous three phases. The contact line shows a clear time-dependent change with regard to both perimeter and area of a domain. An autocorrelation analysis of time development of the dynamics of the perimeter and area revealed a strong geometric correlation between neighboring patterns. The pattern showed autoregressive behavior. The behavior of the dynamic pattern is strikingly different from those of stationary labyrinthine patterns. The essential aspects of the observed dynamic pattern are reproduced by a diffusion-controlled geometric model.
Chen
Yong-Jun
YJ
Department of Physics, Graduate School of Science, Kyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan.
Nagamine
Yuko
Y
Yoshikawa
Kenichi
K
D000388:Air; D001703:Biophysics / Q000379:methods*; D004058:Diffusion; D015233:Models, Statistical; D013499:Surface Properties; D013997:Time Factors; D014867:Water / Q000737:chemistry
D014867:Water