DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8
文献类型：期刊论文
| 作者 | Liang Xian ; Li XinLiang; Liang X(梁贤)
|
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2013-07-01 |
| 卷号 | 56期号:7页码:1408-1418 |
| 通讯作者邮箱 | liangxian@imech.ac.cn |
| 关键词 | DNS compressibility effects turbulent boundary layer |
| ISSN号 | 1674-7348 |
| 产权排序 | [Liang, Xian; Li, XinLiang] Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China |
| 通讯作者 | 梁贤 |
| 中文摘要 | This paper reports the direct numerical simulation (DNS) for hypersonic turbulent boundary layer over a flat-plate at Ma∞=8 with the ratio of wall-to-freestream temperature equal to 1.9, which indicates an extremely cold wall condition. It is primarily used to assess the wall temperature effects on the mean velocity profile, Walz equation, turbulent intensity, strong Reynolds analogy (SRA), and compressibility. The present high Mach number with cold wall condition induces strong compressibility effects. As a result, the Morkovin’s hypothesis is not fully valid and so the classical SRA is also not fully consistent. However, some modified SRA is still valid at the far-wall region. It is also verified that the semi-local wall coordinate y* is better than conventional y+ in analysis of statistics features in turbulent boundary layer (TBL) in hypersonic flow. |
| 英文摘要 | This paper reports the direct numerical simulation (DNS) for hypersonic turbulent boundary layer over a flat-plate at Ma (a)=8 with the ratio of wall-to-freestream temperature equal to 1.9, which indicates an extremely cold wall condition. It is primarily used to assess the wall temperature effects on the mean velocity profile, Walz equation, turbulent intensity, strong Reynolds analogy (SRA), and compressibility. The present high Mach number with cold wall condition induces strong compressibility effects. As a result, the Morkovin's hypothesis is not fully valid and so the classical SRA is also not fully consistent. However, some modified SRA is still valid at the far-wall region. It is also verified that the semi-local wall coordinate y* is better than conventional y (+) in analysis of statistics features in turbulent boundary layer (TBL) in hypersonic flow. |
| 学科主题 | 计算流体力学 |
| 分类号 | 二类/Q3 |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | DIRECT NUMERICAL-SIMULATION ; TRANSITION |
| 收录类别 | SCI |
| 资助信息 | This work was supported by the National Nature Science Foundation of China (Grant No. 11072248), the National Basic Research Program (Grant No. 2009CB724100), the National High-tech R&D Program (No.2012AA01A304), and the CAS Information Project (INFO-115-B01). |
| 原文出处 | http://dx.doi.org/10.1007/s11433-013-5102-9 |
| 语种 | 英语 |
| WOS记录号 | WOS:000320502800025 |
| 公开日期 | 2013-06-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/47282]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Liang X(梁贤) |
| 作者单位 | Chinese Acad Sci, Inst Mech, Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang Xian,Li XinLiang,Liang X. DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2013,56(7):1408-1418. |
| APA | Liang Xian,Li XinLiang,&梁贤.(2013).DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,56(7),1408-1418. |
| MLA | Liang Xian,et al."DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 56.7(2013):1408-1418. |
入库方式： OAI收割
来源：力学研究所
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。