超音速气流中横喷氢气自动着火与燃烧非定常过程的实验研究

推进技术 ›› 1996, Vol. 17 ›› Issue (4): 26-31.

超音速气流中横喷氢气自动着火与燃烧非定常过程的实验研究

胡欲立,刘陵,刘敬华,凌文辉

西北工业大学航空动力与热力工程系;西北工业大学航空动力与热力工程系;航天工业总公司３１所;航天工业总公司３１所

发布日期:2021-08-15
基金资助:
国家自然科学基金,“八六三”资助

AN EXPERIMENTAL INVESTIGATION ON AUTO IGNITION AND COMBUSTION PROCESS IN SUPERSONIC AIRFLOW WITH NORMAL INJECTING OF HYDROGEN

Dept. of Aeroengine, Northwestern Polytechnical Univ., Xi’an, 710072;Dept. of Aeroengine, Northwestern Polytechnical Univ., Xi’an, 710072;The 3lst Research Iust., Beijing, 100074;The 3lst Research Iust., Beijing, 100074

Published:2021-08-15

摘要/Abstract

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

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

胡欲立,刘陵,刘敬华,凌文辉. 超音速气流中横喷氢气自动着火与燃烧非定常过程的实验研究[J]. 推进技术, 1996, 17(4): 26-31.