题名 | Effect of wall temperature on the kinetic energy transfer in a hypersonic turbulent boundary layer |
作者 | |
通讯作者 | Wang,Jianchun |
发表日期 | 2021-12-25
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DOI | |
发表期刊 | |
ISSN | 0022-1120
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EISSN | 1469-7645
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卷号 | 929 |
摘要 | The effect of wall temperature on the transfer of kinetic energy in a hypersonic turbulent boundary layer for different Mach numbers and wall temperature ratios is studied by direct numerical simulation. A cold wall temperature can enhance the compressibility effect in the near-wall region through increasing the temperature gradient and wall heat flux. It is shown that the cold wall temperature enhances the local reverse transfer of kinetic energy from small scales to large scales, and suppresses the local direct transfer of kinetic energy from large scales to small scales. The average filtered spatial convection and average filtered viscous dissipation are dominant in the near-wall region, while the average subgrid-scale flux of kinetic energy achieves its peak value in the buffer layer. It is found that the wall can suppress the inter-scale transfer of kinetic energy, especially for the situation of a cold wall. A strong local reverse transfer of fluctuating kinetic energy is identified in the buffer layer in the inertial range. Helmholtz decomposition is applied to analyse the compressibility effect on the subgrid-scale flux of kinetic energy. A strong transfer of the solenoidal component of fluctuating kinetic energy is identified in the buffer layer, while a significant transfer of the dilatational component of fluctuating kinetic energy is observed in the near-wall region. It is also shown that compression motions have a major contribution to the direct transfer of fluctuating kinetic energy, while expansion motions play a marked role in the reverse transfer of fluctuating kinetic energy. |
关键词 | |
相关链接 | [Scopus记录] |
收录类别 | |
语种 | 英语
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学校署名 | 通讯
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资助项目 | National Natural Science Foundation of China (NSFC)[91952104,92052301,91752201]
; NSFC Basic Science Center Program[11988102]
; Technology and Innovation Commission of Shenzhen Municipality["KQTD20180411143441009","JCYJ20170412151759222"]
; Department of Science and Technology of Guangdong Province[2019B21203001]
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WOS研究方向 | Mechanics
; Physics
|
WOS类目 | Mechanics
; Physics, Fluids & Plasmas
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WOS记录号 | WOS:000721289200001
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出版者 | |
EI入藏号 | 20214411107021
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EI主题词 | Atmospheric thermodynamics
; Boundary layer flow
; Buffer layers
; Compressibility
; Energy transfer
; Heat flux
; Hypersonic boundary layers
; Hypersonic flow
; Kinetic energy
; Turbulence
; Turbulent flow
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EI分类号 | Atmospheric Properties:443.1
; Fluid Flow, General:631.1
; Thermodynamics:641.1
; Heat Transfer:641.2
; Classical Physics; Quantum Theory; Relativity:931
; Crystalline Solids:933.1
; Materials Science:951
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ESI学科分类 | ENGINEERING
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Scopus记录号 | 2-s2.0-85118309302
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来源库 | Scopus
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引用统计 |
被引频次[WOS]:32
|
成果类型 | 期刊论文 |
条目标识符 | http://kc.sustech.edu.cn/handle/2SGJ60CL/254823 |
专题 | 工学院_力学与航空航天工程系 |
作者单位 | 1.State Key Laboratory of Turbulence and Complex Systems,College of Engineering,Peking University,Beijing,100871,China 2.Guangdong Provincial Key Laboratory of Fundamental Turbulence Research and Applications,Center for Complex Flows and Soft Matter Research,Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China 3.Laboratory of High Temperature Gas Dynamics,Institute of Mechanics,Chinese Academy of Sciences,Beijing,100190,China |
通讯作者单位 | 力学与航空航天工程系 |
推荐引用方式 GB/T 7714 |
Xu,Dehao,Wang,Jianchun,Wan,Minping,et al. Effect of wall temperature on the kinetic energy transfer in a hypersonic turbulent boundary layer[J]. JOURNAL OF FLUID MECHANICS,2021,929.
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APA |
Xu,Dehao,Wang,Jianchun,Wan,Minping,Yu,Changping,Li,Xinliang,&Chen,Shiyi.(2021).Effect of wall temperature on the kinetic energy transfer in a hypersonic turbulent boundary layer.JOURNAL OF FLUID MECHANICS,929.
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MLA |
Xu,Dehao,et al."Effect of wall temperature on the kinetic energy transfer in a hypersonic turbulent boundary layer".JOURNAL OF FLUID MECHANICS 929(2021).
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条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | 操作 | |
XuEA-JFM-2021.pdf(3532KB) | -- | -- | 限制开放 | -- |
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