Experiment on Continuous Rotating Detonation Engine with Tilt Slot Injector

Journal of Propulsion Technology ›› 2014, Vol. 35 ›› Issue (4): 570-576.

National Key Laboratory of Transient Physics,Nanjing University of Science and Technology, Nanjing 210094,China;National Key Laboratory of Transient Physics,Nanjing University of Science and Technology, Nanjing 210094,China;National Key Laboratory of Transient Physics,Nanjing University of Science and Technology, Nanjing 210094,China

Published:2021-08-15

倾斜环缝喷孔式连续旋转爆轰发动机试验

郑权,翁春生,白桥栋

南京理工大学瞬态物理国家重点实验室,江苏南京 210094;南京理工大学瞬态物理国家重点实验室,江苏南京 210094;南京理工大学瞬态物理国家重点实验室,江苏南京 210094

作者简介:郑权(1988—),男,博士生,研究领域为爆轰推进。E-mail:quanta_2003@163.com
基金资助:
国防预研基金(9140c300202120c30)；中央高校基本科研业务专项资金资助(30920130112007)。

Abstract

Abstract: To prove the theoretical predictions of ignition process and propagation mechanism in the continuous rotating detonation engine(CRDE), the H₂/Air continuous rotating detonation engine ignited by tangentially installed H₂/O_2pre-detonation tube was studied experimentally using the tilt slot injector structure. Three different tilt slots were used, with the sizes of 1.0mm, 1.6mm and 2.0mm, respectively. The experimental results show the tilt slot with the size of 1.6mm is demonstrated the best for continuous rotating detonation engine.The propagation frequency of rotating detonation wave ranges from 5.0kHz to 5.3kHz and rotating velocity ranges from 1460.1m/s to 1547.7m/s. Through the analysis of the propagation mechanism of the rotating detonation wave,it is proved that the detonation wave operation can be grouped into three modes:rotation, reversal and bifurcation.

Key words: Continuous rotating detonation engine；Detonation wave；Slot injector；H₂/Air mixture；Experimental research

摘要： 为了验证连续旋转爆轰发动机起爆过程和传播机理的理论研究,采用了1.0mm,1.6mm以及2.0mm三种尺寸的倾斜环缝喷孔结构,以H₂/O₂切向喷注的预爆轰管进行起爆,进行了H₂/Air组合方式的连续旋转爆轰发动机试验研究。试验结果表明,1.6mm环缝获得了最佳的试验结果,爆轰波频率为5.0～5.3kHz,对应的传播速度为1460.1～1547.7m/s。通过对旋转爆轰波传播机理的分析,验证了爆轰波存在三种传播方式:正转、反转和双波头对撞。 

关键词: 连续旋转爆轰发动机;爆轰波;环缝喷孔;H₂/Air混合物;试验研究 

ZHENG Quan,WENG Chun-sheng,BAI Qiao-dong. Experiment on Continuous Rotating Detonation Engine with Tilt Slot Injector[J]. Journal of Propulsion Technology, 2014, 35(4): 570-576.

郑权,翁春生,白桥栋. 倾斜环缝喷孔式连续旋转爆轰发动机试验[J]. 推进技术, 2014, 35(4): 570-576.

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