| 调制BZ-CSTR反应体系小振荡诱导非平衡相变 |
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| 引用本文： | 魏庆莉,侯哲,李艳妮,陈兰,蔡遵生,赵学庄.调制BZ-CSTR反应体系小振荡诱导非平衡相变[J].物理化学学报,2000,16(4):338-344. |
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| 作者姓名： | 魏庆莉 侯哲 李艳妮 陈兰 蔡遵生 赵学庄 |
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| 作者单位： | Department of Chemistry,Nankai University,Tianjin 300071 |
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| 基金项目： | 国家自然科学基金资助项目!(29573109) |
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| 摘 要： | 以流量为扰动参数，对连续搅拌釜式反应器（ＣＳＴＲ）中的Ｂｅｌｏｕｓｏｖ－Ｚｈａｂｏｔｉｎｄｓｋｙ（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，计算结果与实验基本定性一致。
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| 关 键 词： | CSTR-BZ 小振荡 周期扰动 外噪声 非平衡相变 |
| 收稿时间： | 1999-07-05 |
| 修稿时间： | 1999-11-22 |
Modulation Induced Nonlinear Phase Transitions of Small Amplitude Oscillation in CSTR-BZ Reaction |
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| Wei Qingli,Hou Zhe,Li Yanni,Chen Lan,Cai Zunsheng,Zhao Xuezhuang.Modulation Induced Nonlinear Phase Transitions of Small Amplitude Oscillation in CSTR-BZ Reaction[J].Acta Physico-Chimica Sinica,2000,16(4):338-344. |
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| Authors: | Wei Qingli Hou Zhe Li Yanni Chen Lan Cai Zunsheng Zhao Xuezhuang |
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| Institution: | Department of Chemistry,Nankai University,Tianjin 300071 |
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| Abstract: | 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. |
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| Keywords: | CSTR-BZ Small oscillation Periodic perturbation External noise Nonlinear phase transition |
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