旋转爆震发动机爆震波建立过程实验研究

推进技术 ›› 2016, Vol. 37 ›› Issue (10): 1801-1809.

• 总体与系统 • 下一篇

旋转爆震发动机爆震波建立过程实验研究

彭磊¹,王栋¹,裴晨曦²,马虎¹,杨成龙¹,武晓松¹

南京理工大学机械工程学院，江苏南京 210094,南京理工大学机械工程学院，江苏南京 210094,上海航天动力技术研究所，上海 201109,南京理工大学机械工程学院，江苏南京 210094,南京理工大学机械工程学院，江苏南京 210094,南京理工大学机械工程学院，江苏南京 210094

发布日期:2021-08-15
作者简介:彭磊，男，硕士生，研究领域为新型推进装置。E-mail: penglei_njust203@126.com 通讯作者:马虎，男，博士，讲师，研究领域为飞行器动力装置内的燃烧、流动、爆震燃烧推进技术等。
基金资助:
国家自然科学基金(51376091)；江苏省自然科学基金(BK20150782)；

Experiment Research on Establishing Process of

School of Mechanical Engineering，Nanjing University of Science and Technology，Nanjing 210094，China,School of Mechanical Engineering，Nanjing University of Science and Technology，Nanjing 210094，China,Shanghai Space Propulsion Technology Research Institute，Shanghai 201109，China,School of Mechanical Engineering，Nanjing University of Science and Technology，Nanjing 210094，China,School of Mechanical Engineering，Nanjing University of Science and Technology，Nanjing 210094，China and School of Mechanical Engineering，Nanjing University of Science and Technology，Nanjing 210094，China

Published:2021-08-15

摘要/Abstract

摘要： 为了深入研究旋转爆震发动机爆震波建立过程及形成机理，采用小能量火花单次点火的方式进行了一系列旋转爆震发动机起爆实验。发动机采用环缝-喷孔对撞式掺混方式，燃料为H2，氧化剂为空气，实验成功起爆旋转爆震波，并连续旋转稳定传播，爆震波传播频率为5.09 ~ 6.45kHz，传播速度为1286 ~ 1644.8m/s。在发动机稳定工作过程中，集气腔与燃烧室相互影响，二者处于平稳的动态平衡。其次，通过对旋转爆震波起爆过程详细分析发现，点火形成的初始火焰在环形燃烧室经历一个类似DDT的火焰发展过程，成功转变为爆震波，且从点火到爆震波建立之间的火焰发展传播过程和时间间隔均表现出很强的随机性。此外，为验证小能量火花点火的可靠性，还进行了小能量点火重复性实验，发现在稳定工况条件下采用小能量点火成功率最高可达100%，各组旋转爆震波传播速度在1440m/s附近波动。

关键词: 旋转爆震波；氢-空气混合；DDT过程；小能量点火

Abstract: In order to understand the establishing process and formation mechanism of the rotating detonation wave，an experimental study on the rotating detonation engine with the slot-orifice impinging injection method was presented. Reactants were gaseous H2-Air mixtures and ignited for once by a low-energy ignition plug directly. The engine was initiated successfully and rotating detonation wave propagated continuously and steadily in the circumferential direction. The main frequency of the rotating detonation wave is 5.09 ~ 6.45kHz and the velocity is 1286 ~ 1644.8m/s. In the stable operating process，the plenum chamber and the annular combustion chamber interact with each other，and a dynamic equilibrium is built up. Through the detailed analysis on the establishing process of rotating detonation wave engine，it is found that deflagration-to-detonation transition(DDT) was observed in the annular combustion chamber，and the development process of the flame and the DDT time exhibited an obvious randomness. Besides，in order to obtain the success rate of rotating detonation wave initiation with a low-energy ignition plug，repeatability experiments were carried out. The results show that the success rate is up to 100%，and the velocity of rotating detonation wave of every test fluctuates around 1440m/s.

Key words: Rotating detonation wave；H2/Air mixtures；Deflegration to detonation transition；Low energy ignition

彭磊,王栋,裴晨曦,马虎,杨成龙,武晓松. 旋转爆震发动机爆震波建立过程实验研究[J]. 推进技术, 2016, 37(10): 1801-1809.

PENG Lei¹,WANG Dong¹,PEI Chen-xi²,MA Hu¹,YANG Cheng-long¹,WU Xiao-song¹. Experiment Research on Establishing Process of[J]. Journal of Propulsion Technology, 2016, 37(10): 1801-1809.

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旋转爆震发动机爆震波建立过程实验研究

Experiment Research on Establishing Process of

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