FRONT GEOMETRIES OF CHEMICAL WAVES UNDER ANISOTROPIC CONDITIONS

被引：28

作者：

YAMAGUCHI, T ^{[1
]}

MULLER, SC ^{[1
]}

机构：

[1] MAX PLANCK INST ERNAHRUNGSPHYSIOL,W-4600 DORTMUND 1,GERMANY

来源：

PHYSICA D | 1991年 / 49卷 / 1-2期

关键词：

D O I：

10.1016/0167-2789(91)90191-B

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

An experimental study of chemical waves in the Belousov-Zhabotinsky reaction under anisotropic conditions of substrate concentrations extending over the system was carried out by use of ferroin-immobilized silica gels as reacting matrices. Unidirectionally moving wave trains (similar to the so-called "chemical pinwheels") followed by the spontaneous fragmentation of wave fronts were observed in rectangular two-dimensional gels. A helicoidal chemical wave (or twisted scroll wave), which was predicted by numerical calculation, was detected in a micro-cylindrical gel system. A space-time representation of the chemical helix was constructed and its structural features are discussed qualitatively.

引用

页码：40 / 46

页数：7

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