HYDROCHEMICAL SOLITON : EXPERIMENTAL STUDY OF A CHEMICAL WAVE COUPLED WITH MARANGONI INSTABILITY IN BELOUSOV-ZHABOTINSKY REACTION(Session IV : Structures & Patterns, The 1st Tohwa University International Meeting on Statistical Physics Theories, Experiments and Computer Simulations)

Abstract

It has been known the existence of the Big Wave (BW), which is a peculiar chemical wave, in a quasi 2-dimensional shallow layer of unstirred excitable Belousov-Zhabotinsky (BZ) reaction [1]. The specific feature of BW is the fact that it causes a single large solitary wave on the solution surface [1-3]. Therefore BW may belong to the category of the so-called "dissipative soliton" [3]. It has been made clear by some experimental studies that the physical mechanism of BW is due to the hydrodynamic instability coupled with chemical reactions [2-5].