【作者】 郭俊江； 徐佳琪； 李东艳； 谈宁馨； 李象远；

【Author】 Jun Jiang Guo;Jia Qi Xu;Dong-Yan Li;Ning Xin Tan;Xiang Yuan Li;College of Chemical Engineering, Sichuan University;College of Chemistry, Sichuan University;

【机构】 四川大学化工学院； 四川大学化学学院；

【摘要】 十氢化萘是高能量密度燃料中双环烷烃的典型代表,对其燃烧特性进行研究,在航空发动机设计中具有非常重要的作用。运用反应类规则结合本实验课题组自主研发的机理自动生成程序ReaxGen~[1],构建了十氢化萘高温燃烧详细机理。为获得详细机理中的重要物种及反应路径信息,采用反应路径分析与近似轨迹优化算法联用的组合方案简化详细机理得到简化机理。为了验证机理的合理性,对构建的机理进行了点火延时模拟,并与实验结果比较。结果表明该机理的模拟精度较高。最后给出了点火延时的敏感度分析,考察了十氢化萘燃烧时的关键反应。更多还原

【Abstract】 Applied the reaction class with using automatic generation software for hydrocarbon fuels combustion mechanism, a detailed mechanism for the combustion of decalin was developed. In order to obtain the information of important species and reaction path in the detailed mechanism, a simplified mechanism was obtained using the integrated strategy of reaction path analysis and approximate trajectory optimization algorithm. The proposed mechanisms were validated by the ignition delay time. The results indicate that these developed mechanisms are reliable in describing fuel auto-ignition characteristics. Finally, the sensitivity analysis for ignition delay times was carried out.更多还原