Multiple ignitions and the stability of rotating detonation waves

doi:10.1016/j.applthermaleng.2016.07.166

CORC > 北京大学 > 工学院

	Multiple ignitions and the stability of rotating detonation waves
	Yao, Songbai ; Wang, Jianping
刊名	APPLIED THERMAL ENGINEERING
	2016
关键词	Rotating detonation Ignition Stability Simulation HYDROGEN-OXYGEN MIXTURE PROPULSIVE PERFORMANCE CELLULAR DETONATIONS ENGINE MECHANISM COMBUSTOR CHAMBER NOZZLE CYCLE FLOW
DOI	10.1016/j.applthermaleng.2016.07.166
英文摘要	We perform a numerical study on rotating detonation engines (RDE). The simulations demonstrate the feasibility of creating multiple detonation waves and examine their stabilization process. The computations are based on the three-dimensional Euler equations with reactive sources. The Arrhenius chemistry model is used to calculate the reaction rate of the pre-mixed stoichiometric hydrogen-air mixture. The simulations show the oscillation phenomenon characterized by the pressure-time traces and the stabilization process. Also, the results indicate the existence of one-, two-, and eight-wave propagation modes in the fully-developed detonation flow. The initial detonation waves dominate the flow throughout the stabilization process in the one- and two-wave modes. On the other hand, the eight-wave mode is the result of the generation of new detonation waves during the intermediate stage. The simulations are compared with the experimental studies to confirm the existence of the multi-wave modes discussed herein. In addition, it is found that the velocity of detonation waves decreases with the increase of the number of detonation waves, which is also reported in some experiments. (C) 2016 Elsevier Ltd. All rights reserved.; National Nature Science Foundation of China [91441110]; SCI(E); EI; ARTICLE; yaso@pku.edu.cn; WJP_Lab@pku.edu.cn; 927-936; 108
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/494327]
专题	工学院
推荐引用方式 GB/T 7714	Yao, Songbai,Wang, Jianping. Multiple ignitions and the stability of rotating detonation waves[J]. APPLIED THERMAL ENGINEERING,2016.
APA	Yao, Songbai,&Wang, Jianping.(2016).Multiple ignitions and the stability of rotating detonation waves.APPLIED THERMAL ENGINEERING.
MLA	Yao, Songbai,et al."Multiple ignitions and the stability of rotating detonation waves".APPLIED THERMAL ENGINEERING (2016).