Problems of the conventional BL model as applied to super/hypersonic turbulent boundary layers and its improvements
文献类型：期刊论文
| 作者 | Dong M; Li XL(李新亮)
|
| 刊名 | Science China-Physics Mechanics & Astronomy
 |
| 出版日期 | 2011 |
| 卷号 | 54期号:10页码:1889-1898 |
| 通讯作者邮箱 | dongming@tju.edu.cn |
| 关键词 | Turbulence Modeling Supersonic Hypersonic Turbulent Boundary Layer Dns Bl Model Direct Numerical-Simulation Temperature Computation Flows |
| ISSN号 | 1674-7348 |
| 产权排序 | [Dong Ming] Tianjin Univ, Dept Mech, Tianjin 300072, Peoples R China; [Dong Ming] Tianjin Key Lab Modern Engn Mech, Tianjin 300072, Peoples R China; [Li XinLiang] Chinese Acad Sci, Inst Mech, Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| 通讯作者 | Dong, M (reprint author), Tianjin Univ, Dept Mech, Tianjin 300072, Peoples R China |
| 合作状况 | 国内 |
| 中文摘要 | Turbulence modeling has played important roles in solving engineering problems. However, with the development of aerospace technology, turbulence modeling faces new challenges. How to further improve turbulence modeling for super/hypersonic flows is an urgent problem. Through analyzing a set of data resulting from DNS and experiments, it is found that some most popular models suffer from essential flaws, and can be hardly improved following the traditional mode of thinking. On the contrary, the BL model, which is one of the simplest and widely-used models, can be further improved. In this paper, through analyzing results from DNS data, the main cause of the inaccuracy in applying the BL model to supersonic and hypersonic turbulent boundary layers is found to have resulted from the mismatch between the location of the matching point of the inner and outer layers of the BL model determined by the conventional way and those given by DNS. Improvement on this point, as well as other improvements is proposed. Its effectiveness is verified through the comparison with DNS results. |
| 学科主题 | Physics |
| 分类号 | 二类/Q3 |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | DIRECT NUMERICAL-SIMULATION ; TEMPERATURE ; COMPUTATION ; FLOWS |
| 收录类别 | SCI ; EI |
| 资助信息 | The cooperation of the two authors of this paper was brought about by Professor Zhou Heng of Tianjin University, and Professor Zhou has also made valuable contributions to the paper in the form of offering suggestions and comments to the first author, to which we are grateful. This work was supported by the National Basic Research Program of China (Grant No. 2009CB724103) and the National Aeronautics Base Science Foundation of China (Grant No. 2010ZA48002). |
| 原文出处 | http://dx.doi.org/10.1007/s11433-011-4450-6 |
| 语种 | 英语 |
| WOS记录号 | WOS:000295213100026 |
| 公开日期 | 2012-04-01 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/45168]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Dong M,Li XL. Problems of the conventional BL model as applied to super/hypersonic turbulent boundary layers and its improvements[J]. Science China-Physics Mechanics & Astronomy,2011,54(10):1889-1898. |
| APA | Dong M,&李新亮.(2011).Problems of the conventional BL model as applied to super/hypersonic turbulent boundary layers and its improvements.Science China-Physics Mechanics & Astronomy,54(10),1889-1898. |
| MLA | Dong M,et al."Problems of the conventional BL model as applied to super/hypersonic turbulent boundary layers and its improvements".Science China-Physics Mechanics & Astronomy 54.10(2011):1889-1898. |
入库方式： OAI收割
来源：力学研究所
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