北京航空航天大学学报 ›› 2011, Vol. 37 ›› Issue (9): 1091-1094,1099.

• 论文 • 上一篇    下一篇

气气喷嘴推进剂入口温度对燃烧和壁温的影响

李茂, 高玉闪, 金平, 蔡国飙   

  1. 北京航空航天大学 宇航学院, 北京 100191
  • 收稿日期:2010-05-21 出版日期:2011-09-30 发布日期:2011-10-03
  • 作者简介:李 茂(1983-),男,湖南长沙人,博士生, feitian_cs@163.com.
  • 基金资助:

    国家863基金资助项目

Effects of propellants temperature in gas-gas injector inleton combustion performance and wall temperature

Li Mao, Gao Yushan, Jin Ping, Cai Guobiao   

  1. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2010-05-21 Online:2011-09-30 Published:2011-10-03

摘要: 以同轴双剪切气气单喷嘴为对象,对气气燃烧流场进行了数值模拟,并进行了研究,分析了喷嘴推进剂入口温度对燃烧性能和室壁温的影响,结果表明:推进剂温度变化引起的燃氧动量比变化对燃烧和壁温起主要影响;富氢燃气状态变化对燃烧和壁温的影响大于富氧燃气状态变化.试验验证了数值模拟结果.

Abstract: A combustor with a shear tricoaxial gas-gas injector was researched numerically and experimentally. The influence of propellants temperature in the injector inlet on the combustion performance and wall temperature was investigated and analyzed. The numerical simulation results show that the variable momentum ratio of fuel to oxidizer which brought by the variable propellants temperature is the main factor. The influence of the fuel temperature on the combustion performance and wall temperature is more obviously than the oxidizer temperature. The experimental results validate the numerical simulation results.

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