| DNS of shock/boundary layer interaction flow in a supersonic compression ramp | |
Li XL(李新亮) ; Fu DX(傅德薰); Ma YW(马延文); Liang X(梁贤); Li, XL (reprint author), CAS, Inst Mech, LHD, Beijing 100190, Peoples R China
| |
| Source Publication | COMPUTATIONAL FLUID DYNAMICS 2010 |
| 2011 | |
| Pages | 729-737 |
| Conference Name | 6th International Conference on Computational Fluid Dynamics |
| Conference Date | JUL 12-16, 2010 |
| Conference Place | St Petersburg, RUSSIA |
| Abstract | A direct numerical simulation of the shock/turbulent boundary layer interaction flow in a supersonic 24-degree compression ramp is conducted with the free stream Mach number 2.9. The blow-and-suction disturbance in the upstream wall boundary is used to trigger the transition. Both the mean wall pressure and the velocity profiles agree with those of the experimental data, which validates the simulation. The turbulent kinetic energy budget in the separation region is analyzed. Results show that the turbulent production term increases fast in the separation region, while the turbulent dissipation term reaches its peak in the near-wall region. The turbulent transport term contributes to the balance of the turbulent conduction and turbulent dissipation. Based on the analysis of instantaneous pressure in the downstream region of the mean shock and that in the separation bubble, the authors suggest that the low frequency oscillation of the shock is not caused by the upstream turbulent disturbance, but rather the instability of separation bubble. |
| Keyword | Turbulent-boundary-layer Direct Numerical-simulation |
| Department | LHD可压缩湍流 |
| ISBN | 978-3-642-17883-2 |
| URL | 查看原文 |
| Indexed By | CPCI |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46806 |
| Collection | 高温气体动力学国家重点实验室 |
| Corresponding Author | Li, XL (reprint author), CAS, Inst Mech, LHD, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Li XL,Fu DX,Ma YW,et al. DNS of shock/boundary layer interaction flow in a supersonic compression ramp[C]COMPUTATIONAL FLUID DYNAMICS 2010,2011:729-737. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 10.1007_978-3-642-17（966KB） | 开放获取 | -- | View Download | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment