Numerical investigations of hypersonic transition and massive separation past Orion capsule by DDES-Tr
Numerical investigations of hypersonic transition and massive separation past Orion capsule by DDES-Tr
复制标题
DDES-Tr 对高超声速转变和经过猎户座太空舱的大规模分离的数值研究
DOI:
10.1016/j.ijheatmasstransfer.2019.03.119
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发表时间:
2019-07
影响因子:
5.2
通讯作者:
Lianzhong Chen
中科院分区:
文献类型:
--
作者:
Zhixiang Xiao;Guangxing Wang;Muchen Yang;Lianzhong Chen
The hypersonic flow at high angle of attack past the Orion capsule was predicted by a delayed detached eddy simulation (DDES), based on a three-equation k-ω-γ transition/turbulence integrated model (Tr). The computational results of the mean and instantaneous heat rates by DDES-Tr are compared with the available measurements and DDES-FT (full turbulence). As expected, the massive separation on the leeward side can be well predicted by both DDES models, but DDES-FT cannot model the transition and over-predicts the heat flux on the windward side. Fortunately, the DDES-Tr model can not only resolve the massive separation on the leeward side, but also model the transition on the windward side. Furthermore, the contributions of the first, second, and crossflow modes on the transition are quantitatively explored. Although the freestream is hypersonic, the second Mack mode is very weak owing to the low supersonic speed after the strong bow shock wave. The transition is mainly dominated by the first and rarely by the crossflow mode.
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DOI:
10.1007/s10494-011-9336-1
发表时间:
2011-03
期刊:
Flow, Turbulence and Combustion
影响因子:
--
作者:
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通讯作者:
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影响因子:
9
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发表时间:
2012-01
期刊:
Science China Physics,Mechanics & Astonomy
影响因子:
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影响因子:
1.6
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通讯作者:
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DOI:
10.2514/6.2010-1250
发表时间:
2010-01
期刊:
--
影响因子:
--
作者:
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通讯作者:
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