Simulation of noise characteristic effects on stochastic resonance in Belousov-Zhabotinsky flow reaction

被引：5
|
作者：
Qi, F [1 ]
Yao, PP [1 ]
Xin, HW [1 ]
机构：
[1] Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China
来源：
SCIENCE IN CHINA SERIES B-CHEMISTRY | 2000年 / 43卷 / 04期
基金：
中国国家自然科学基金;
关键词：
noise; stochastic resonance; B-Z flow reaction;
D O I：
10.1007/BF02969444
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A three-variable model, which was proposed to account for the stochastic resonance (SR) in Belousov-Zhabotinsky (B-Z) reaction in a continuous-flow stirred-tank reactor, is investigated when the control parameter k(f), the flow rate, is modulated by noise near supercritical Hopf bifurcation point. Using the computer simulation, noise-induced oscillations are observed, and the signal-to-noise ratio (SNR) goes through a maximum with the increment of noise intensity, which means occurrence of stochastic resonance. In addition, we have also investigated the effects of correlation time of colored noise and the duration time of white noise on the system's dynamics.
引用
收藏
页码：389 / 395
页数：7
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