On the invariant mean velocity profile for compressible turbulent   boundary layers

doi:10.1080/14685248.2016.1269911

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	On the invariant mean velocity profile for compressible turbulent boundary layers
	Wu, Bin ; Bi, Weitao ; Hussain, Fazle ; She, Zhen-Su
刊名	JOURNAL OF TURBULENCE
	2017
关键词	Compressible turbulent boundary layers multi-layer structure mean velocity scaling DIRECT NUMERICAL-SIMULATION HIGH REYNOLDS-NUMBER WALL TEMPERATURE CHANNEL FLOW FRICTION PART
DOI	10.1080/14685248.2016.1269911
英文摘要	An invariant mean velocity profile is derived and validated by direct numerical simulations of compressible turbulent boundary layers (CTBL) for a range of Reynolds number, Mach number and wall temperature. Near the wall, we reveal an invariance of the mean momentum equation, which derives and clarifies the semi-local scaling of the wall-normal coordinate. A near-wall multilayered modeling of the invariant spatial coordinate yields an invariant mean velocity for the inner flow. In the outer flow, an explicit invariant velocity is derived, based on a symmetry-based analytic description of the mixing length in the CTBL bulk. Thus, a whole invariant mean velocity profile is constructed, and validated to be superior to previous transformations.; National Natural Science Foundation of China [11452002, 11372008, 11521091]; SCI(E); ARTICLE; 2; 186-202; 18
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/476256]
专题	工学院
推荐引用方式 GB/T 7714	Wu, Bin,Bi, Weitao,Hussain, Fazle,et al. On the invariant mean velocity profile for compressible turbulent boundary layers[J]. JOURNAL OF TURBULENCE,2017.
APA	Wu, Bin,Bi, Weitao,Hussain, Fazle,&She, Zhen-Su.(2017).On the invariant mean velocity profile for compressible turbulent boundary layers.JOURNAL OF TURBULENCE.
MLA	Wu, Bin,et al."On the invariant mean velocity profile for compressible turbulent boundary layers".JOURNAL OF TURBULENCE (2017).