INFLUENCE OF THE CRITICAL CURVATURE ON SPIRAL INITIATION IN AN EXCITABLE MEDIUM

被引：19

作者：

GOMEZGESTEIRA, M

DELCASTILLO, JL

VAZQUEZIGLESIAS, ME

PEREZMUNUZURI, V

PEREZVILLAR, V

机构：

[1] Group of Nonlinear Physics, Faculty of Physics, University of Santiago de Compostela

来源：

PHYSICAL REVIEW E | 1994年 / 50卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.50.4646

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Spiral waves are created in a Belousov-Zhabotinsky medium due to the presence of some inert obstacle placed into that medium. The eikonal equation, which is completely valid when the excitability of the system remains constant, is shown to be insufficient when media with different excitabilities are used, as predicted by Zykovs kinematical theory [Biophys. 25, 906 (1980)], where two parameters, excitability and curvature, are varied. © 1994 The American Physical Society.

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页码：4646 / 4649

页数：4

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