| 摘要: |
| 进行了Ｍ＝２超音速流中横喷氢的自动着火及燃烧非定常过程实验研究，用高速纹影摄影、壁面动态和静态压力测量仪及壁温热电偶等进行了测量。得到了喷嘴后回流区壁压随时间的变化规律，以及壁压和壁面秒温升沿轴线的变化趋势。获得了来流空气总温和喷氢量对自动着火过程的影响。 |
| 关键词: 超音速燃烧 氢燃料 自燃点火 非定常流 燃烧试验 |
| DOI： |
| 分类号:V231.24 |
| 基金项目:国家自然科学基金,“八六三”资助 |
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| AN EXPERIMENTAL INVESTIGATION ON AUTO IGNITION AND COMBUSTION PROCESS IN SUPERSONIC AIRFLOW WITH NORMAL INJECTING OF HYDROGEN |
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Hu Yuli1, Liu Ling1, Liu Jinghua2, Ling Wenhui2
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1.Dept. of Aeroengine, Northwestern Polytechnical Univ., Xi’an, 710072;2.The 3lst Research Iust., Beijing, 100074
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| Abstract: |
| ith a high speed camera and schlieren optical system, dynamic and static pressuretransducers, temperature sensors, auto-ignition and non-steady processes in supersonic air flow with injecting transversely hydrogen are studied by tests. Wall pressures changing with time within auto-ignition processes in recirculating zone downstream the injector, and wall pressures rises in axial direction are measured. Effects of the airstream’s total temperature and the amount of injecting hydrogenon auto-ignition processes are considered. |
| Key words: Supersonic combustion Hydrogen fuel Hypergolic ignition Unsteady flow Combustion test |
