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
收藏
页码：118 / 124
页数：7
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