气氢/气氧富燃预燃室设计与试验

李茂; 高玉闪; 陈泽; 金平; 蔡国飙

气氢/气氧富燃预燃室设计与试验

北京航空航天大学宇航学院,北京 100191

基金项目: 国家高技术研究发展计划

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出版历程
- 收稿日期: 2010-05-21
- 修回日期: 2010-10-13
- 刊出日期: 2011-06-28

Design and experiment for a GH₂/GO₂ fuel-rich preburner

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

摘要

摘要: 为获得点火可靠、燃气温度均匀性较好的气氢/气氧全流量补燃循环发动机富燃预燃室,开展了其结构方案设计、燃烧流场仿真和试验研究.结构方案分别为同轴双剪切单喷嘴、同轴剪切多喷嘴和分区燃烧.仿真结果表明,同轴双剪切单喷嘴方案能使燃气温度在较短的预燃室长度内达到较好的均匀性.试验结果表明,同轴双剪切喷嘴方案具有良好的点火可靠性和燃气温度均匀性,并且能在较广的流量范围内维持良好的燃气均匀性.
- 全流量补燃循环 /
- 富燃预燃室 /
- 同轴双剪切喷嘴 /
- 燃烧仿真 /
- 燃气温度
Abstract: Scheme design,numerical simulation and experimental study were used to investigate a fuel-rich preburner of full flow staged combustion cycle engine in order to validate the ignition reliability and products’ temperature uniformity.Gaseous hydrogen and gaseous oxygen were selected as the propellants.Three types of structure schemes,namely,shear tricoaxial injector,multi-injector,division combustion,were analyzed contrastively.The numerical results show that,the product temperature can reach a nicer uniformity in a short preburner length by using the scheme of shear tricoaxial injector.And,the credible ignition reliability and good product temperature uniformity were validated in the experimental test.The temperature uniformity can maintain well in a large range of mass flow.
- full flow staged combustion /
- fuel-rich preburner /
- shear tricoaxial injector /
- combustion simulation /
- gases temperature

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参考文献(12)

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