Knowledge Management System of Institue of Mechanics, CAS
| Analytical calculations of Eulerian and Lagrangian time correlations in turbulent shear flows | |
Zhao X; He GW(何国威)
| |
| Source Publication | New Trends In Fluid Mechanics Research - Proceedings Of The Fifth International Conference On Fluid Mechanics |
| 2007 | |
| Pages | 158-161 |
| Conference Name | 5th International Conference on Fluid Mechanics |
| Conference Date | AUG 15-19, 2007 |
| Conference Place | Shanghai, PEOPLES R CHINA |
| Abstract | 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. |
| Keyword | Time Correlation Turbulent Shear Flows Elliptic Model Isotropic Turbulence Velocity Autocorrelation |
| WOS ID | WOS:000254042000040 |
| Indexed By | CPCI-S |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25450 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Zhao X |
| Recommended Citation GB/T 7714 | Zhao X,He GW. Analytical calculations of Eulerian and Lagrangian time correlations in turbulent shear flows[C]New Trends In Fluid Mechanics Research - Proceedings Of The Fifth International Conference On Fluid Mechanics,2007:158-161. |
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| File Name/Size | DocType | Version | Access | License | ||
| Conf.55.pdf（242KB） | 开放获取 | -- | View Download | |||
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