Kinematic equations for front motion and spiral-wave nucleation

被引：5

作者：

Hagberg, A

Meron, E ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, IL-84990 Sede Boqer, Israel

[2] Ben Gurion Univ Negev, Dept Phys, IL-84990 Sede Boqer, Israel

[3] Univ Calif Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA

[4] Univ Calif Los Alamos Natl Lab, Theoret Div T7, Los Alamos, NM 87545 USA

来源：

PHYSICA A | 1998年 / 249卷 / 1-4期

关键词：

D O I：

10.1016/S0378-4371(97)00439-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a new set of kinematic equations for front motion in bistable media. The equations extend earlier kinematic approaches by coupling the front curvature with the order parameter associated with a parity-breaking front bifurcation. In addition to naturally describing the core region of rotating spiral waves, the equations can be used to study the nucleation of spiral-wave pairs along uniformly propagating fronts. The analysis of spiral-wave nucleation reduces to the simpler problem of droplet. or domain. nucleation in one space dimension. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：118 / 124

页数：7

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