EXPERIMENTAL-STUDY OF STATIONARY TURING PATTERNS AND THEIR INTERACTION WITH TRAVELING WAVES IN A CHEMICAL-SYSTEM

被引:76
作者
DEKEPPER, P
PERRAUD, JJ
RUDOVICS, B
DULOS, E
机构
来源
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS | 1994年 / 4卷 / 05期
关键词
D O I
10.1142/S0218127494000915
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We give a brief review of recent observations of Turing patterns in an isothermal single-phase chemical system. The basic principles of open spatial reactors used in the experiments are described. Different types of one-, two- and three-dimensional symmetry breaking reaction-diffusion patterns are discussed in relation with the geometric dimensions of the reactors and with the localization of the patterned regions in the concentration ramps. We also present a set of new spatiotemporal structures resulting from the interaction of the Turing (spatial) and Hopf (temporal) instabilities. Among other things, these interactions lead to antisymmetric wave sources in quasi-one-dimensional systems and to spatiotemporal intermittency in quasi-two-dimensional systems. We also report on a ''cell splitting'' growth mechanism of stationary patterns after a supercritical change in parameter value beyond the onset of the Turing instability.
引用
收藏
页码:1215 / 1231
页数:17
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