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DNS of a spatially evolving hypersonic turbulent boundary layer at Mach 8
Liang Xian; Li XinLiang; Liang X(梁贤)
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
2013-07-01
Volume56Issue:7Pages:1408-1418
ISSN1674-7348
AbstractThis 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.
KeywordDns Compressibility Effects Turbulent Boundary Layer
Subject Area计算流体力学
DOI10.1007/s11433-013-5102-9
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000320502800025
WOS KeywordDIRECT NUMERICAL-SIMULATION ; TRANSITION
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationNational 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)
DepartmentLHD可压缩湍流
Classification二类/Q3
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47282
Collection高温气体动力学国家重点实验室
Corresponding AuthorLiang X(梁贤)
AffiliationChinese Acad Sci, Inst Mech, Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
Recommended Citation
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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