IMECH-IR  > 高温气体动力学国家重点实验室
The effects of air vitiation on the supersonic turbulent channel flow using direct numerical simulation
Chen XP; Li XP(李晓鹏); Dou HS
Source Publication52nd AIAA/SAE/ASEE Joint Propulsion Conference, 2016
2016
Conference Name52nd AIAA/SAE/ASEE Joint Propulsion Conference, 2016
Conference DateJuly 25, 2016 - July 27, 2016
Conference PlaceSalt Lake City, UT, United states
AbstractTemporally evolving supersonic turbulent channel flows are simulated using direct numerical simulation (DNS) approach at Mach number 2.56, Reynolds number 7000 with water vapor (H2O) mass fraction from 0.00 to 0.161 to study the air vitiation effects. Then, the turbulent statistical characteristics and velocity-temperature correlations have been studied based on the DNS database. It is found that in fully developed turbulent channel flow, many of turbulent statistical characteristics used to express supersonic turbulent channel flow of pure air also hold for the H2O considered. After a nondimensional static temperature parameters introduced, the mean velocity-temperature correlation collapses between current DNS results. The results of strong Reynolds analogy decrease with H2O mass fraction increasing, and modified strong Reynolds analogy show a better agreement than original strong Reynolds analogy. In addition, the correlation Ru’T’isn’t remained the same between the different H2O mass fraction cases. © 2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
KeywordMass Fraction Mean Velocities Nondimensional Reynolds Analogy Static Temperature Statistical Characteristics Temperature Correlation Turbulent Channel Flows
DepartmentLHD超声速燃烧
ISBN9781624104060
URL查看原文
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60148
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
Chen XP,Li XP,Dou HS. The effects of air vitiation on the supersonic turbulent channel flow using direct numerical simulation[C],2016.
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