Effects of Cowl-Induced Expansion on the Wave Complex Induced by Oblique Detonation Wave Reflection
文献类型：期刊论文
| 作者 | Wang, Aifeng3 ; Shang JH(尚佳豪)2; Wang Q(汪球)2; Wang KL(王宽亮)1
|
| 刊名 | PROCESSES
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 9期号:7页码:10 |
| 关键词 | oblique detonation asymmetric nozzle reflection |
| DOI | 10.3390/pr9071215 |
| 通讯作者 | Wang, Kuanliang(wangkuanliang@bit.edu.cn) |
| 英文摘要 | Oblique detonation wave (ODW) reflection on the upper wall leads to a sophisticated wave complex, whose stability is critical to the application of oblique detonation engines. The unstable wave complex characterized with a continuous moving Mach stem has been observed, but the corresponding re-stability adjusting method is still unclear so far. In this study, the cowl-induced expansion wave based on the model with an upper-side expansion wall is introduced, and the ODW dynamics have been analyzed using the reactive Euler equations with a two-step induction-reaction kinetic model. With the addition of a cowl-induced expansion wave, the re-stabilized Mach stem has been distinguished. This re-stability is determined by the weakened secondary reflection wave of lower wall, while the final location of Mach stem is not sensitive to the position of the expansion corner. The re-stabilized ODW structure is also basically irrelevant to the expansion angle, while it may shift to unstable due to the merging of subsonic zones. Transient phenomena for the unstable state have been also discussed, clarifying fine wave structures further. |
| 分类号 | Q3 |
| WOS关键词 | COMBUSTION ; PERFORMANCE ; INITIATION |
| 资助项目 | National Natural Science Foundation of China (NSFC)[12002041] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000676917000001 |
| 资助机构 | National Natural Science Foundation of China (NSFC) |
| 其他责任者 | Wang, Kuanliang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/87058]  |
| 专题 | 力学研究所_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.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 3.Aero Engine Acad China, Aero Engine Corp China, Beijing 101304, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, Aifeng,Shang JH,Wang Q,et al. Effects of Cowl-Induced Expansion on the Wave Complex Induced by Oblique Detonation Wave Reflection[J]. PROCESSES,2021,9(7):10. |
| APA | Wang, Aifeng,尚佳豪,汪球,&王宽亮.(2021).Effects of Cowl-Induced Expansion on the Wave Complex Induced by Oblique Detonation Wave Reflection.PROCESSES,9(7),10. |
| MLA | Wang, Aifeng,et al."Effects of Cowl-Induced Expansion on the Wave Complex Induced by Oblique Detonation Wave Reflection".PROCESSES 9.7(2021):10. |
入库方式： OAI收割
来源：力学研究所
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