Numerical investigation of oblique detonation waves on a truncated cone in hydrogen-air mixtures

doi:10.1063/5.0173603

	Numerical investigation of oblique detonation waves on a truncated cone in hydrogen-air mixtures
	Zhou, Lin 1,2; Tu, Shengjia 2; Zhang, Yining 2; Yang PF(杨鹏飞)3 ; Teng, Honghui1,4
通讯作者	Zhang, Yining(13718931527@163.com) ; Yang, Pengfei(young1505@foxmail.com)
发表期刊	PHYSICS OF FLUIDS
	2023-11-01
卷号	35 期号:11 页码:15
ISSN	1070-6631
摘要	Traditional methods of initiating oblique detonation waves (ODWs) using wedges and cones face a fundamental challenge in reconciling the need for rapid initiation with stable combustion, especially at low flight Mach numbers (Ma < 8). This study introduces an innovative initiation configuration involving a truncated cone. By utilizing Euler equations coupled with detailed hydrogen-air chemical reaction models, the wave dynamics induced by the truncated cone configuration are systematically explored. The findings reveal that the truncated cone configuration enables more rapid initiation of ODWs compared to conventional cones, while also preserving improved stability when contrasted with wedge. This behavior can be attributed to the planar flow characteristics in the post-shock field of truncated cone, generated by the upstream wedge-shaped shock, and the Taylor-Maccoll flow characteristics, caused by the downstream conical shock. Furthermore, the study delves into the initiation and morphological changes with respect to the inner radius and angle of the truncated cone. As inner radii or truncated cone angle increase, three initiation wave systems emerge: stable, oscillatory, and detached modes. Analysis of the dynamic variations in pressure and velocity within the induction zone highlights that the upstream oscillation originates from the flow velocity in the induction zone falling below the local Chapman-Jouguet velocity of normal detonation wave (NDW). However, the upstream region of the truncated cone exhibits more pronounced expansion effects, leading to momentum loss, and subsequently, the weakening and even vanishing of the NDW. This prompts the downstream oscillation of the initiation structure, instigating a cyclic oscillation pattern.
DOI	10.1063/5.0173603
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001106202000006
关键词[WOS]	ZONE STRUCTURE ; PERFORMANCE ; COMBUSTION ; INITIATION ; WEDGE
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
资助项目	This research was supported by the National Natural Science Foundation of China (Nos. 12202014 and 12325206).[12202014] ; This research was supported by the National Natural Science Foundation of China (Nos. 12202014 and 12325206).[12325206] ; National Natural Science Foundation of China
项目资助者	This research was supported by the National Natural Science Foundation of China (Nos. 12202014 and 12325206). ; National Natural Science Foundation of China
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Zhang, Yining ; Yang, Pengfei
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/93786
专题	高温气体动力学国家重点实验室
作者单位	1.Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China; 2.Beijing Power Machinery Inst, Beijing 100074, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 4.Beijing Inst Technol, Chongqing Innovat Ctr, Chongqing 401120, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Lin,Tu, Shengjia,Zhang, Yining,et al. Numerical investigation of oblique detonation waves on a truncated cone in hydrogen-air mixtures[J]. PHYSICS OF FLUIDS,2023,35,11,:15.
APA	Zhou, Lin,Tu, Shengjia,Zhang, Yining,杨鹏飞,&Teng, Honghui.(2023).Numerical investigation of oblique detonation waves on a truncated cone in hydrogen-air mixtures.PHYSICS OF FLUIDS,35(11),15.
MLA	Zhou, Lin,et al."Numerical investigation of oblique detonation waves on a truncated cone in hydrogen-air mixtures".PHYSICS OF FLUIDS 35.11(2023):15.

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