乙烯氧化动力学机理简化  

Reduction of Ethylene Combustion Kinetic Mechanism

作　　者：刘爱科[1] 李树豪[2] 王繁[3] 李象远[1] 

机构地区：[1]四川大学化学工程学院,四川成都610065 [2]四川大学空天科学与工程学院,四川成都610065 [3]四川大学化学学院,四川成都610065

出　　处：《推进技术》2015年第1期142-148,共7页Journal of Propulsion Technology

基　　金：国家自然科学基金(20973118;91016002)

摘　　要：为获得可用于工程模拟的高精度乙烯简化机理,采用反应路径分析方法及近似轨迹优化算法(ATOA)对乙烯氧化机理进行了框架简化。简化结果表明,ATOA在给定的自点火误差条件下能获得更精简的框架机理。以包含70个物种、463个基元反应的乙烯氧化详细机理为基础,获得了包含32个物种、194个基元反应的框架机理。该机理与已报道的直接关系图法获得的框架机理对比验证表明,获得的框架机理更忠实于详细机理。该简化模型组分数量少、精度高。Path flux analysis method and approximate trajectory optimization algorithm （ATOA） were ap-plied to obtain skeletal mechanism of ethylene combustion. The results show that under the given auto-ignition er-ror,ATOA can obtain skeletal mechanism with smaller size. Based on a detailed mechanism consisting of 70 spe-cies and 463 elementary reactions,a skeletal mechanism with 32 species and 194 elementary reactions was gen-erated. This skeletal mechanism was validated, and the result was then compared with a previous mechanism based on direct relation graph method. The results show that the reduced model generated by this work has high fi-delity and small size.

关 键 词：机理简化 乙烯氧化机理 近似轨迹优化算法 

分 类 号：TK124[动力工程及工程热物理—工程热物理]