Effects of dimensional wall temperature on velocity-temperature correlations in supersonic turbulent channel flow of thermally perfect gas | |
Chen XP![]() ![]() | |
Source Publication | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
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2019-06-01 | |
Volume | 62Issue:6Pages:AR64711 |
ISSN | 1674-7348 |
Abstract | Direct numerical simulations of temporally evolving supersonic turbulent channel flows of thermally perfect gas are conducted at Mach number 3.0 and Reynolds number 4800 for various values of the dimensional wall temperature to study the influence of the latter on the velocity-temperature correlations. The results show that in a fully developed turbulent channel flow, as the dimensional wall temperature increases, there is little change in the mean velocity, but the mean temperature decreases. The mean temperature is found to be a quadratic function of the mean velocity, the curvature of which increases with increasing dimensional wall temperature. The concept of recovery enthalpy provides a connection between the mean velocity and the mean temperature, and is independent of dimensional wall temperature. The right tails of probability density function of the streamwise velocity fluctuation grows with increasing dimensional wall temperature. The dimensional wall temperature does not have a significant influence on the Reynolds analogy factor or strong Reynolds analogy (SRA). The modifications of SRA by Huang et al. and Zhang et al. provide reasonably good results, which are better than those of the modifications by Cebeci and Smith and by Rubesin. |
Keyword | direct numerical simulation velocity-temperature correlation supersonic flow channel flow thermally perfect gas strong Reynolds analogy |
DOI | 10.1007/s11433-018-9318-4 |
Indexed By | SCI ; EI ; CSCD |
Language | 英语 |
WOS ID | WOS:000457426600001 |
WOS Keyword | DIRECT NUMERICAL-SIMULATION ; HYPERSONIC BOUNDARY-LAYER ; VARIABLE SPECIFIC-HEAT ; REYNOLDS ; DNS |
WOS Research Area | Physics, Multidisciplinary |
WOS Subject | Physics |
Funding Organization | National Natural Science Foundation of China [11502236, 51536008, 91852203] ; National Key Research and Development Program of China [2016YFA0401200] ; Science Challenge Project [TZ2016001] ; Natural Science Foundation of Zhejiang Province [LQ16E090005] |
Classification | 二类/Q1 |
Ranking | 1 |
Contributor | Li, XL |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/78508 |
Collection | 高温气体动力学国家重点实验室 |
Corresponding Author | Li XL(李新亮) |
Affiliation | 1.{Chen, XiaoPing、Zhu, ZuChao} Zhejiang Sci Tech Univ, Key Lab Fluid Transmiss Technol Zhejiang Prov, Hangzhou 310018, Zhejiang, Peoples R China 2.{Li, XinLiang} Chinese Acad Sci, Inst Mech, Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 3.{Li, XinLiang} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Chen XP,Li XL,Zhu ZC. Effects of dimensional wall temperature on velocity-temperature correlations in supersonic turbulent channel flow of thermally perfect gas[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2019,62(6):AR64711. |
APA | Chen XP,Li XL,&Zhu ZC.(2019).Effects of dimensional wall temperature on velocity-temperature correlations in supersonic turbulent channel flow of thermally perfect gas.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,62(6),AR64711. |
MLA | Chen XP,et al."Effects of dimensional wall temperature on velocity-temperature correlations in supersonic turbulent channel flow of thermally perfect gas".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 62.6(2019):AR64711. |
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