Analytical calculations of Eulerian and Lagrangian time correlations in turbulent shear flows
文献类型：会议论文
| 作者 | Zhao X; He GW(何国威)
|
| 出版日期 | 2007 |
| 会议名称 | 5th International Conference on Fluid Mechanics |
| 会议日期 | AUG 15-19, 2007 |
| 会议地点 | Shanghai, PEOPLES R CHINA |
| 关键词 | Time Correlation Turbulent Shear Flows Elliptic Model Isotropic Turbulence Velocity Autocorrelation |
| 页码 | 158-161 |
| 通讯作者 | Zhao X |
| 中文摘要 | The Taylor series expansion method is used to analytically calculate the Eulerian and Lagrangian time correlations in turbulent shear flows. The short-time behaviors of those correlation functions can be obtained from the series expansions. Especially, the propagation velocity and sweeping velocity in the elliptic model of space-time correlation are analytically calculated and further simplified using the sweeping hypothesis and straining hypothesis. These two characteristic velocities mainly determine the space-time correlations. |
| 收录类别 | CPCI-S |
| 会议录 | New Trends In Fluid Mechanics Research - Proceedings Of The Fifth International Conference On Fluid Mechanics
 |
| 会议录出版者 | Beijing |
| 会议录出版地 | Tsinghua University Press |
| 语种 | 英语 |
| ISSN号 | 978-7-302-15894-3 |
| WOS记录号 | WOS:000254042000040 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/25450]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Zhao X,He GW. Analytical calculations of Eulerian and Lagrangian time correlations in turbulent shear flows[C]. 见:5th International Conference on Fluid Mechanics. Shanghai, PEOPLES R CHINA. AUG 15-19, 2007. |
入库方式： OAI收割
来源：力学研究所
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