Mach-Number-Invariant Mean-Velocity Profile of Compressible Turbulent Boundary Layers

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	Mach-Number-Invariant Mean-Velocity Profile of Compressible Turbulent Boundary Layers
	Zhang YS; Bi WT; Hussain F; Li XL(李新亮); She ZS
刊名	Physical Review Letters
	2012-08
卷号	109 期号:5 页码:054502
ISSN号	0031-9007
合作状况	国际
英文摘要	A series of Mach-number- (M) invariant scalings is derived for compressible turbulent boundary layers(CTBLs), leading to a viscosity weighted transformation for the mean-velocity profile that is superior to van Driest transformation. The theory is validated by direct numerical simulation of spatially developing CTBLs with M up to 6. A boundary layer edge is introduced to compare different M flows and is shown to better present the M-invariant multilayer structure of CTBLs. The new scalings derived from the kinetic energy balance substantiate Morkovin’s hypothesis and promise accurate prediction of the mean profiles of CTBLs.
学科主题	流体力学 ; 湍流
分类号	一类
收录类别	SCI ; EI
原文出处	http://link.aps.org/doi/10.1103/PhysRevLett.109.054502
语种	英语
WOS记录号	WOS:000306994900013
公开日期	2012-11-19
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/45680]
专题	力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Zhang YS,Bi WT,Hussain F,et al. Mach-Number-Invariant Mean-Velocity Profile of Compressible Turbulent Boundary Layers[J]. Physical Review Letters,2012,109(5):054502.
APA	Zhang YS,Bi WT,Hussain F,李新亮,&She ZS.(2012).Mach-Number-Invariant Mean-Velocity Profile of Compressible Turbulent Boundary Layers.Physical Review Letters,109(5),054502.
MLA	Zhang YS,et al."Mach-Number-Invariant Mean-Velocity Profile of Compressible Turbulent Boundary Layers".Physical Review Letters 109.5(2012):054502.