燃烧驱动溴化氢化学激光器的数值模拟  

Numerical Simulation of Combustion Driven HBr Chemical Lasers

作　　者：李辉[1,2] 范庭轩 贾淑芹 李留成[1] 怀英[1] Li Hui;Fan Tingxuan;Jia Shuqin;Li Liucheng;Huai Ying(Key Laboratory of Chemical Lasers,Dalian Institute of Chemical Physics,Chinese Academy of Sciences Dalian,Liaoning 116023,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Chemistry and Chemical Engineering,Nanjing University,Nanjing,Jiangsu 210023,China)

机构地区：[1]中国科学院大连化学物理研究所化学激光重点实验室,辽宁大连116023 [2]中国科学院大学,北京100049 [3]南京大学化学化工学院,江苏南京210023

出　　处：《中国激光》2018年第11期22-26,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金(21573218);中国科学院战略性先导科技专项(B类)资助(XDB17010300)

摘　　要：采用敏感性分析方法研究了溴化氢(HBr)化学激光器的反应机理,分析了主导反应和关键参数之间的关系。分析了温度、压力及关键中间物的敏感性系数,确定了温度对HBr不同振动态布居的有效性调控。利用计算流体力学(CFD)研究了HBr化学激光增益发生器,给出了流场内部的温度、浓度分布。结果表明:当HBr化学激光器的内部初始反应温度在500 K左右时,能获得高振动态的输出。In order to identify the relationship between main reaction and key parameters, we use the sensitivity analysis method to study the reaction mechanism of HBr chemical laser. The sensitivity coefficients of temperature, pressure and key intermediate product are analyzed, and the effectiveness of temperature off controlling the distribution of HBr is confirmed. A gain generator of HBr chemical laser is studied by computational fluid dynamics, and the distributions of temperature and concentration are given, respectively. The research results show that high vibrational state is obtained at the initial temperature of 500 K.

关 键 词：激光器 溴化氢化学激光器 增益发生器 敏感性分析 计算流体力学 

分 类 号：TN248.5[电子电信—物理电子学]