| 一种单喷嘴推力室燃烧内流场的方法 |
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| 引用本文： | 汪小卫,金平,蔡国飙.一种单喷嘴推力室燃烧内流场的方法[J].北京航空航天大学学报,2009,35(9):1095-1099. |
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| 作者姓名： | 汪小卫 金平 蔡国飙 |
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| 作者单位： | 北京航空航天大学,宇航学院,北京,100191;北京航空航天大学,宇航学院,北京,100191;北京航空航天大学,宇航学院,北京,100191 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为了方便开展单喷嘴气气喷注器燃烧试验研究,设计了一种燃烧室壁面测温,并结合推力室燃烧流场的非稳态数值模拟的方法,以考察燃烧室内流场的发展和燃烧完成情况.应用试验数据对不同的湍流模型和燃烧模型进行了对比研究,得到与试验结果较为吻合的计算模型.并应用该方法开展了同轴剪切式喷注器氢/氧喷注动量比、燃烧室压力变化的试验研究.试验结果表明喷注器掺混燃烧效果随氢/氧喷注动量比增加而增强,而不随燃烧室压力的变化而变化.
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| 关 键 词： | 测量方法 燃烧流场 气气喷注器 燃烧室 数值模拟 |
| 收稿时间： | 2008-08-10 |
Method for investigation of combustion flowfield characteristics in single element gas/gas injector chamber |
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| Wang Xiaowei,Jin Ping,Cai Guobiao.Method for investigation of combustion flowfield characteristics in single element gas/gas injector chamber[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(9):1095-1099. |
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| Authors: | Wang Xiaowei Jin Ping Cai Guobiao |
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| Institution: | School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | To facilitate hot-fire tests of single element gas/gas injector chamber, a method used to reveal the combustion development and completion length of the chamber flowfield was designed, which combines wall temperature measurement and numerical simulation of gas/gas combustion flowfield. The impacts of using various turbulence and combustion models was investigated to obtain the models which best represented the experimental data. And influences of H2/O2 momentum ratio and chamber pressure on shear-coaxial injector combustion flowfield were investigated. The result shows that the better mixing and the shorter combustion length can be obtained with the larger H2/O2 momentum-ratio and the chamber pressure can hardly influences the combustion flowfield. |
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| Keywords: | measurement method combustion flowfield gas/gas injector combustor numerical simulation |
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