Stabilization of spiral wave and turbulence in the excitable media using parameter perturbation scheme  

作　　者：马军 王春妮 靳伍银 李延龙 蒲忠胜 

机构地区：[1]Department of Physics, Lanzhou university of Technology [2]Department of Physics, Central China Normal University [3]Colleges of Mechano-Electronic Engineering, Lanzhou University of Technology

出　　处：《Chinese Physics B》2008年第8期2844-2849,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos 10572056, 10747005 and 30670529)

摘　　要：This paper proposes a scheme of parameter perturbation to suppress the stable rotating spiral wave, meandering spiral wave and turbulence in the excitable media, which is described by the modified Fitzhug-Nagumo （MFHN） model. The controllable parameter in the MFHN model is perturbed with a weak pulse and the pulse period is decided by the rotating period of the spiral wave approximatively. It is confirmed that the spiral wave and spiral turbulence can be suppressed greatly. Drift and instability of spiral wave can be observed in the numerical simulation tests before the whole media become homogeneous finally.This paper proposes a scheme of parameter perturbation to suppress the stable rotating spiral wave, meandering spiral wave and turbulence in the excitable media, which is described by the modified Fitzhug-Nagumo （MFHN） model. The controllable parameter in the MFHN model is perturbed with a weak pulse and the pulse period is decided by the rotating period of the spiral wave approximatively. It is confirmed that the spiral wave and spiral turbulence can be suppressed greatly. Drift and instability of spiral wave can be observed in the numerical simulation tests before the whole media become homogeneous finally.

关 键 词：spiral wave spiral turbulence parameter perturbation 

分 类 号：O415.5[理学—理论物理]