Characteristic features in the collision of chemical waves depending on the aspect ratio of a rectangular field.
The photosensitive Belousov-Zhabotinsky (BZ) reaction was investigated on a double rectangular field composed of two rectangular routes, which was drawn using computer software and then projected using a liquid-crystal projector on a filter paper soaked with BZ solution. When two chemical waves were generated on the rectangular routes as the initial condition, the nature of the collision of the waves could be theoretically classified into four categories depending on the initial phase difference between the two waves and the aspect ratio of the rectangular routes. The experimental results were consistent with the features of the theoretical prediction. These results suggest that the feature of wave propagation characteristically develops depending on the geometry of the excitable fields.
Matsushita
Mariko
M
Department of Chemistry, Nara University of Education, Takabatake-cho, Nara 630-8528, Japan.
Nakata
Satoshi
S
Kitahata
Hiroyuki
H
D008956:Models, Chemical; D017319:Photosensitizing Agents / Q000737:chemistry
D017319:Photosensitizing Agents