Analytical calculations of Eulerian and Lagrangian time correlations in turbulent shear flows

IMECH-IR > 力学所知识产出(1956-2008)

	Analytical calculations of Eulerian and Lagrangian time correlations in turbulent shear flows
	Zhao X; He GW(何国威)
会议录名称	New Trends In Fluid Mechanics Research - Proceedings Of The Fifth International Conference On Fluid Mechanics
	2007
页码	158-161
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
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.
关键词	Time Correlation Turbulent Shear Flows Elliptic Model Isotropic Turbulence Velocity Autocorrelation
WOS记录号	WOS:000254042000040
收录类别	CPCI-S
语种	英语
引用统计
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/25450
专题	力学所知识产出(1956-2008)
通讯作者	Zhao X
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]New Trends In Fluid Mechanics Research - Proceedings Of The Fifth International Conference On Fluid Mechanics,2007:158-161.

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