非等温单分子化学反应体系中温度场的时空对称破缺及温度波

高等学校化学学报

非等温单分子化学反应体系中温度场的时空对称破缺及温度波

韩玉民, 栗志, 罗久里

四川大学化学学院, 化学物理研究所, 成都 610064

收稿日期:2006-06-05 修回日期:1900-01-01 出版日期:2007-04-10 发布日期:2007-04-10
通讯作者: 罗久里

Spatio-temporal Symmetry-breaking of Temperature Field and Temperature Wave in a Nonisothermal Single-Molecule Chemical Reaction System

HAN Yu-Min, LI Zhi, LUO Jiu-Li*

Institute of Chemical Physics, College of Chemistry, Sichuan University, Chengdu 610064, China

Received:2006-06-05 Revised:1900-01-01 Online:2007-04-10 Published:2007-04-10
Contact: LUO Jiu-Li

摘要/Abstract

摘要： 从线性稳定性分析和计算机数值模拟两个方面研究了小尺度空间展布、伴有扩散和热传导的Lindemann单分子化学反应体系的温度场时空对称破缺. 研究结果表明, 在一定参数值和固定边界条件下, 反应体系经由时间-空间对称破缺分支能够产生温度波.

关键词: 化学反应-扩散-热传导耦合, Lindemann单分子反应模型, 温度场时空对称破缺, 温度波

Abstract: Spatio-temporal symmetry-breaking of temperature field in a small spatially distributed Lindemann single-molecule chemical reaction-diffusion-heat conduction system is studied by both the linear stability analysis and the computer numerical simulation. It is shown that the temperature wave can appear beyond spatio-temporal symmetry-breaking bifurcation at a certain constraint controlled externally and a fixed boundary condition for the model system.

Key words: Chemical reaction-diffusion-heat conduction coupling, Lindemann single-molecule reaction model, Spatio-temporal symmetry-breaking of temperature field, Temperature wave

中图分类号:

O642.12

TrendMD:

韩玉民, 栗志, 罗久里 . 非等温单分子化学反应体系中温度场的时空对称破缺及温度波. 高等学校化学学报, doi: .

HAN Yu-Min, LI Zhi, LUO Jiu-Li*. Spatio-temporal Symmetry-breaking of Temperature Field and Temperature Wave in a Nonisothermal Single-Molecule Chemical Reaction System. Chem. J. Chinese Universities, doi: .