Assessment of bursting detection methods with LES database of turbulent channel flows

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	Assessment of bursting detection methods with LES database of turbulent channel flows
	Zhang Q(张强); Zhou JF(周济福); Li JC(李家春)
	2004-07-28
会议名称	4th International Conference on Fluid Mechanics, JUL 20-30, 2004 Dalian, PEOPLES R CHINA
会议日期	JUL 20-30, 2004
会议地点	Dalian, PEOPLES R CHINA
页码	126-129
通讯作者	张强
中文摘要	Validated by comparison with DNS, numerical database of turbulent channel flows is yielded by Large Eddy Simulation (LES). Three conventional techniques: uv quadrant 2, VITA and mu-level techniques for detecting turbulent bursts are applied to the identification of turbulent bursts. With a grouping parameter introduced by Bogard & Tiedemann (1986) or Luchik & Tiederman (1987), multiple ejections detected by these techniques which originate from a single burst can be grouped into a single-burst event. The results are compared with experimental results, showing that all techniques yield reasonable average burst period. However, uv quadrant 2 and mu-level are found to be superior to VITA in having large threshold-independent range.
收录类别	CPCI-S
会议录	RECENT ADVANCES IN FLUID MECHANICS：Proceedings of the Fourth International Conference on Fluid Mechanics
学科主题	力学
语种	英语
WOS记录号	WOS:000225709300024
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/13866]
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	Zhang Q,Zhou JF,Li JC. Assessment of bursting detection methods with LES database of turbulent channel flows[C]. 见:4th International Conference on Fluid Mechanics, JUL 20-30, 2004 Dalian, PEOPLES R CHINA. Dalian, PEOPLES R CHINA. JUL 20-30, 2004.