Numerical investigation of the boundary layer separation in chemical oxygen iodine laser
文献类型：期刊论文
| 作者 | Jia, Shuqin1,2; Huai, Ying2; Wu, Kenan2; Jin, Yuqi2; Sang, Fengting2 |
| 刊名 | OPTICS AND LASER TECHNOLOGY
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 96页码:276-282 |
| 关键词 | Boundary Layer Separation Large Eddy Simulation Shock Waves Chemical Oxygen Iodine Laser |
| DOI | 10.1016/j.optlastec.2017.05.024 |
| 英文摘要 | Large eddy simulation is carried out to model the flow process in a supersonic chemical oxygen iodine laser. Unlike the common approaches relying on the tensor representation theory only, the model in the present work is an explicit anisotropy-resolving algebraic Subgrid-scale scalar flux formulation. With an accuracy in capturing the unsteady flow behaviours in the laser. Boundary layer separation initiated by the adverse pressure gradient is identified using Large Eddy Simulation. To quantify the influences of flow boundary layer on the laser performance, the fluid computations coupled with a physical optics loaded cavity model is developed. It has been found that boundary layer separation has a profound effect on the laser outputs due to the introduced shock waves. The F factor of the output beam decreases to 10% of the original one when the boundary transit into turbulence for the setup depicted in the paper. Because the pressure is always greater on the downstream of the boundary layer, there will always be a tendency of boundary separation in the laser. The results inspire designs of the laser to apply positive/-passive control methods avoiding the boundary layer perturbation. (C) 2017 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000405051800039 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/152058]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, 273 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Shuqin,Huai, Ying,Wu, Kenan,et al. Numerical investigation of the boundary layer separation in chemical oxygen iodine laser[J]. OPTICS AND LASER TECHNOLOGY,2017,96:276-282. |
| APA | Jia, Shuqin,Huai, Ying,Wu, Kenan,Jin, Yuqi,&Sang, Fengting.(2017).Numerical investigation of the boundary layer separation in chemical oxygen iodine laser.OPTICS AND LASER TECHNOLOGY,96,276-282. |
| MLA | Jia, Shuqin,et al."Numerical investigation of the boundary layer separation in chemical oxygen iodine laser".OPTICS AND LASER TECHNOLOGY 96(2017):276-282. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。