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

气气喷嘴推进剂入口温度对燃烧和壁温的影响

北京航空航天大学宇航学院, 北京 100191

基金项目: 国家863基金资助项目

详细信息

中图分类号: V 431
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出版历程
- 收稿日期: 2010-05-21
- 网络出版日期: 2011-09-30

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

School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

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.
- 同轴双剪切喷嘴 /
- 燃烧性能 /
- 壁温 /
- 数值模拟 /
- 试验
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.
- shear tricoaxial injector /
- combustion performance /
- wall temperature /
- numerical simulation /
- experiment

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参考文献(1)

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