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

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8
	Liang Xian; Li XinLiang; Liang X(梁贤)
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2013-07-01
通讯作者邮箱	liangxian@imech.ac.cn
卷号	56 期号:7 页码:1408-1418
关键词	DNS compressibility effects turbulent boundary layer
ISSN号	1674-7348
通讯作者	梁贤
产权排序	[Liang, Xian; Li, XinLiang] Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
中文摘要	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.
英文摘要	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.
学科主题	计算流体力学
分类号	二类/Q3
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	DIRECT NUMERICAL-SIMULATION ; TRANSITION
收录类别	SCI
资助信息	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).
原文出处	http://dx.doi.org/10.1007/s11433-013-5102-9
语种	英语
WOS记录号	WOS:000320502800025
公开日期	2013-06-13
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47282]
专题	力学研究所_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.