COMPOUND ROTATION OF SPIRAL WAVES IN ACTIVE MEDIA WITH PERIODICALLY MODULATED EXCITABILITY

被引：71

作者：

BRAUNE, M

ENGEL, H

机构：

[1] AG Phys.-chem. Dynamik, WIP, 12484 Berlin-Adlershof, Rudower Chaussee 5

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 211卷 / 06期

关键词：

D O I：

10.1016/0009-2614(93)80139-G

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The dynamics of spiral waves under external modulation of excitability is studied experimentally in a light-sensitive convection-free Belousov-Zhabotinsky medium. When varying the intensity of applied illumination periodically, the experiments reveal strong dependence of the resulting trajectories of the spiral's tip on the modulation period. With appropriate periodic modulation it is possible to force a meandering spiral wave into the regime of circular (rigid) rotation. The experimental results are discussed in the framework of the kinematical theory of spiral waves.

引用

页码：534 / 540

页数：7

共 13 条

[1]

AGLADZE KI, 1987, JETP LETT+, V45, P767

[2] SPIRAL-WAVE DYNAMICS IN A SIMPLE-MODEL OF EXCITABLE MEDIA - THE TRANSITION FROM SIMPLE TO COMPOUND ROTATION [J].