调制BZ-CSTR反应体系小振荡诱导非平衡相变

Modulation Induced Nonlinear Phase Transitions of Small Amplitude Oscillation in CSTR-BZ Reaction

以流量为扰动参数,对连续搅拌釜式反应器(CSTR)中的Belousov Zhabotinsky(BZ)反应体系小振荡进行周期或噪声扰动,改变扰动周期或扰动强度,在某些条件下可以诱导非平衡相变.以BZ反应的四变量Montanator模型为基础,对相应流率区进行周期或噪声扰动。

Nonlinear phase transitions are observed both from experiment and simulations in the modulated CSTR-BZ reaction system.The small amplitude oscillation of potential at low flow region is perturbed by periodic or noise (random) signal on the flow.Phase transition may occur under certain conditions (perturbation frequency and perturbation amplitude).The 4-variables Montanator model is used in the modeling calculations,and our experiments are in qualitative agreement with the model calculations.