| Detonation wave structure and thrust variation of a ram accelerator with different projectile velocities | |
Shang JH(尚甲豪); Wang, Kuanliang ; Wang, Aifeng; Wang Q(汪球); Zhao W(赵伟)
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| Corresponding Author | Wang, Kuanliang([email protected]) ; Wang, Qiu([email protected]) |
| Source Publication | AEROSPACE SCIENCE AND TECHNOLOGY
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| 2023-12-01 | |
| Volume | 143Pages:8 |
| ISSN | 1270-9638 |
| Abstract | A study was conducted to investigate the effect of velocity on the detonation wave structure and thrust of a ram accelerator using a simulation of a premixed, reacting flow over a conical projectile. The simulation involved solving the compressible reactive Navier-Stokes equations with a detailed chemical model in a channel with a supersonic stoichiometric hydrogen-oxygen inflow. Results showed that at projectile velocities lower than the Chapman-Jouguet detonation velocity, a thermally choked unstart occurs. As the projectile velocity increases, the overdriven detonation mode, trans-detonative mode, and super-detonative mode successively form. The maximum thrust was achieved at the lower velocity limit under the overdriven normal detonation condition, but decreased continuously as an oblique detonation wave formed. The super-detonative mode was distinguished by the smoothness of the tail thrust derived from the recirculation zone and ignition before the conical ramp led to an unstart at the upper velocity limit. |
| Keyword | Ram accelerator Detonation Oblique detonation wave Recirculation zone |
| DOI | 10.1016/j.ast.2023.108717 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001117084100001 |
| WOS Keyword | OBLIQUE ; COMBUSTION |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Aerospace |
| Funding Project | Foundation of China (NSFC)[12002041] |
| Funding Organization | Foundation of China (NSFC) |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Wang, Kuanliang ; Wang, Qiu |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/93579 |
| Collection | 高温气体动力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Shang JH,Wang, Kuanliang,Wang, Aifeng,et al. Detonation wave structure and thrust variation of a ram accelerator with different projectile velocities[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2023,143:8.Rp_Au:Wang, Kuanliang, Wang, Qiu |
| APA | 尚甲豪,Wang, Kuanliang,Wang, Aifeng,汪球,&赵伟.(2023).Detonation wave structure and thrust variation of a ram accelerator with different projectile velocities.AEROSPACE SCIENCE AND TECHNOLOGY,143,8. |
| MLA | 尚甲豪,et al."Detonation wave structure and thrust variation of a ram accelerator with different projectile velocities".AEROSPACE SCIENCE AND TECHNOLOGY 143(2023):8. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2023Fa045.pdf（4127KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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