Relative scaling exponents and intermittency in compressible turbulent channel flows

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 成都山地所知识仓储（2009年以前）

	Relative scaling exponents and intermittency in compressible turbulent channel flows
	Hu, KH1,2,3 ; Chen, K 2,3
刊名	CHINESE PHYSICS LETTERS
	2005-12-01
卷号	22 期号:12 页码:3115-3118
关键词	Physics Multidisciplinary
ISSN号	0256-307X
通讯作者	Hu, KH
英文摘要	The relative scaling exponents and intermittency of three-dimensional compressible turbulent channel now are investigated by using direct numerical simulation. One case is subsonic flow (Ma = 0.8), the other is supersonic (Ma = 1.3), and the Reynolds numbers based on the mean bulk velocity and channel half-width are 2826 and 3010, respectively. The analysis of the local slopes of sixth order velocity structure function to third order reveals that there is a well-defined scaling range for 10 < y(+) < 100. It is also noted that the intermittency of longitudinal velocity increments in this region is stronger than that of the transverse ones. Comparison with the incompressible case shows that the location of the most intensive intermittency moves toward the log-law region, which is related to the displacement of streamwise vortical structures in the near-wall region.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	REYNOLDS-NUMBER ; LAWS
收录类别	SCI
语种	英语
WOS记录号	WOS:000233799600037
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/10500]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
作者单位	1.Peking Univ, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China 2.Peking Univ, Dept Engn Sci & Mech, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Hu, KH,Chen, K. Relative scaling exponents and intermittency in compressible turbulent channel flows[J]. CHINESE PHYSICS LETTERS,2005,22(12):3115-3118.
APA	Hu, KH,&Chen, K.(2005).Relative scaling exponents and intermittency in compressible turbulent channel flows.CHINESE PHYSICS LETTERS,22(12),3115-3118.
MLA	Hu, KH,et al."Relative scaling exponents and intermittency in compressible turbulent channel flows".CHINESE PHYSICS LETTERS 22.12(2005):3115-3118.