DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8

doi:10.1007/s11433-013-5102-9

	DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8
	Liang Xian; Li XinLiang; Liang X(梁贤)
发表期刊	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2013-07-01
卷号	56 期号:7 页码:1408-1418
ISSN	1674-7348
摘要	This paper reports the direct numerical simulation (DNS) for hypersonic turbulent boundary layer over a flat-plate at Ma∞=8 with the ratio of wall-to-freestream temperature equal to 1.9, which indicates an extremely cold wall condition. It is primarily used to assess the wall temperature effects on the mean velocity profile, Walz equation, turbulent intensity, strong Reynolds analogy (SRA), and compressibility. The present high Mach number with cold wall condition induces strong compressibility effects. As a result, the Morkovin’s hypothesis is not fully valid and so the classical SRA is also not fully consistent. However, some modified SRA is still valid at the far-wall region. It is also verified that the semi-local wall coordinate y* is better than conventional y+ in analysis of statistics features in turbulent boundary layer (TBL) in hypersonic flow.; This paper reports the direct numerical simulation (DNS) for hypersonic turbulent boundary layer over a flat-plate at Ma (a)=8 with the ratio of wall-to-freestream temperature equal to 1.9, which indicates an extremely cold wall condition. It is primarily used to assess the wall temperature effects on the mean velocity profile, Walz equation, turbulent intensity, strong Reynolds analogy (SRA), and compressibility. The present high Mach number with cold wall condition induces strong compressibility effects. As a result, the Morkovin's hypothesis is not fully valid and so the classical SRA is also not fully consistent. However, some modified SRA is still valid at the far-wall region. It is also verified that the semi-local wall coordinate y* is better than conventional y (+) in analysis of statistics features in turbulent boundary layer (TBL) in hypersonic flow.
关键词	Dns Compressibility Effects Turbulent Boundary Layer
学科领域	计算流体力学
DOI	10.1007/s11433-013-5102-9
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000320502800025
关键词[WOS]	DIRECT NUMERICAL-SIMULATION ; TRANSITION
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
项目资助者	National Nature Science Foundation of China(11072248) ; This work was supported by the National Nature Science Foundation of China (Grant No. 11072248), the National Basic Research Program (Grant No. 2009CB724100), the National High-tech R&D Program (No.2012AA01A304), and the CAS Information Project (INFO-115-B01). ; National Basic Research Program(2009CB724100) ; National High-tech RD Program(2012AA01A304) ; CAS Information Project(INFO-115-B01)
课题组名称	LHD可压缩湍流
论文分区	二类/Q3
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47282
专题	高温气体动力学国家重点实验室
通讯作者	Liang X(梁贤)
作者单位	Chinese Acad Sci, Inst Mech, Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liang Xian,Li XinLiang,Liang X. DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2013,56,7,:1408-1418.
APA	Liang Xian,Li XinLiang,&梁贤.(2013).DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,56(7),1408-1418.
MLA	Liang Xian,et al."DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 56.7(2013):1408-1418.

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