| Numerical investigation of oblique detonation waves on a truncated cone in hydrogen-air mixtures | |
Zhou, Lin1,2; Tu, Shengjia2; Zhang, Yining2; Yang PF(杨鹏飞)3 ; Teng, Honghui1,4
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| Corresponding Author | Zhang, Yining([email protected]) ; Yang, Pengfei([email protected]) |
| Source Publication | PHYSICS OF FLUIDS
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| 2023-11-01 | |
| Volume | 35Issue:11Pages:15 |
| ISSN | 1070-6631 |
| Abstract | 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 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001106202000006 |
| WOS Keyword | ZONE STRUCTURE ; PERFORMANCE ; COMBUSTION ; INITIATION ; WEDGE |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | 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 |
| Funding Organization | This research was supported by the National Natural Science Foundation of China (Nos. 12202014 and 12325206). ; National Natural Science Foundation of China |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Zhang, Yining ; Yang, Pengfei |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/93786 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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.Rp_Au:Zhang, Yining, Yang, Pengfei |
| 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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| Jp2023A137.pdf（5340KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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