| Influence of high temperature non-equilibrium effects on Mach 12 scramjet inlet | |
Dai, Chunliang1; Sun, Bo1; Zhou, Shengbing2; Zhuo, Changfei1; Zhou, Changsheng1; Yue LJ(岳连捷)3
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| 通讯作者 | Sun, Bo(hypersun@126.com) |
| 发表期刊 | ACTA ASTRONAUTICA
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| 2022-04-01 | |
| 卷号 | 193页码:237-254 |
| ISSN | 0094-5765 |
| 摘要 | To better understand the high temperature non-equilibrium effects of a high Mach number (above Mach 8) scramjet inlet, the thermal and chemical non-equilibrium flow of Mach 12 two-dimensional inlet is numerically analyzed by using the thermochemical non-equilibrium gas model including a two-temperature model and air chemical reactions. The thermal equilibrium flow is simulated by using the models of thermally perfect gas and chemical non-equilibrium gas. It is found that the thermal non-equilibrium effects are relatively strong near the cowl shock and in the outer layer of the boundary layer, and gradually weaken in the downstream zone of the cowl shock. The chemical non-equilibrium effects and thermal equilibrium flows mainly exist in the high-temperature region of the boundary layer. Compared with the chemical non-equilibrium gas, the oxygen dissociation reaction near the lower wall for the thermochemical non-equilibrium gas is weaker in the external compression section; It is stronger due to fully excited vibration energy, in the internal compression section. Compared with the other models, the inlet compression ability for the thermochemical non-equilibrium gas is higher, the coefficient of mass flow and total pressure recovery for it are lower. Hence, the high temperature non-equilibrium effects can not be ignored in the design of the high Mach number scramjet inlet. |
| 关键词 | Mach 12 scramjet inlet High temperature Non-equilibrium effects Thermochemical Inlet performance |
| DOI | 10.1016/j.actaastro.2022.01.013 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000772023900021 |
| 关键词[WOS] | VIBRATIONAL NONEQUILIBRIUM ; FLAME STABILIZATION ; ROTATING DETONATION ; COMBUSTOR ; ETHYLENE ; PERFORMANCE ; DESIGN ; TUNNEL ; FIELD ; FLOW |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Aerospace |
| 资助项目 | Postgraduate Research & Practice Innovation Program of Jiangsu Province[KYCX21_0338] ; China Postdoctoral Science Foundation[BX20200070] ; Opening Foundation of National State Key Laboratory of High Temperature Gas Dynamics |
| 项目资助者 | Postgraduate Research & Practice Innovation Program of Jiangsu Province ; China Postdoctoral Science Foundation ; Opening Foundation of National State Key Laboratory of High Temperature Gas Dynamics |
| 论文分区 | 二类/Q1 |
| 力学所作者排名 | 3+ |
| RpAuthor | Sun, Bo |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/88791 |
| 专题 | 高温气体动力学国家重点实验室 |
| 作者单位 | 1.Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Peoples R China; 2.Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China; 3.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Chunliang,Sun, Bo,Zhou, Shengbing,et al. Influence of high temperature non-equilibrium effects on Mach 12 scramjet inlet[J]. ACTA ASTRONAUTICA,2022,193:237-254. |
| APA | Dai, Chunliang,Sun, Bo,Zhou, Shengbing,Zhuo, Changfei,Zhou, Changsheng,&岳连捷.(2022).Influence of high temperature non-equilibrium effects on Mach 12 scramjet inlet.ACTA ASTRONAUTICA,193,237-254. |
| MLA | Dai, Chunliang,et al."Influence of high temperature non-equilibrium effects on Mach 12 scramjet inlet".ACTA ASTRONAUTICA 193(2022):237-254. |
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