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Title: Direct Numerical Simulation of Shock/Turbulent Boundary Layer Interaction in a Supersonic Compression Ramp
Author: Li XL(李新亮); Fu DX(傅德薰); Ma YW(马延文); Liang X(梁贤)
Source: SCIENCE CHINA: Physics, Mechanics & Astronomy
Issued Date: 2010
Volume: 53, Issue:9, Pages:1651-1658
Abstract: A direct numerical simulation of the shock/turbulent boundary layer interaction flow in a supersonic 24-degree compression ramp is conducted with the free stream Mach number 2.9. The blow-and-suction disturbance in the upstream wall boundary is used to trigger the transition. Both the mean wall pressure and the velocity profiles agree with those of the experimental data, which validates the simulation. The turbulent kinetic energy budget in the separation region is analyzed. Results show that the turbulent production term increases fast in the separation region, while the turbulent dissipation term reaches its peak in the near-wall region. The turbulent transport term contributes to the balance of the turbulent conduction and turbulent dissipation. Based on the analysis of instantaneous pressure in the downstream region of the mean shock and that in the separation bubble, the authors suggest that the low frequency oscillation of the shock is not caused by the upstream turbulent disturbance, but rather the instability of separation bubble.
Keyword: compression ramp, shock/turbulent boundary layer interaction, direct numerical simulation, shock oscillation
Language: 英语
Indexed Type: SCI ; EI ; CSCD
Corresponding Author: 李新亮
Correspondent Email: lixl@imech.ac.cn
DOI: 10.1007/s11433-010-4034-x
WOS ID: WOS:000280810000012
ISSN: 1674-7348
Subject: 流体力学,流体力学::湍流,流体力学::空气动力学,流体力学::计算流体力学
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Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/42444
Appears in Collections:非线性力学国家重点实验室_期刊论文
高温气体动力学国家重点实验室_期刊论文

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Recommended Citation:
Li XL,Fu DX,Ma YW,et al. Direct Numerical Simulation of Shock/Turbulent Boundary Layer Interaction in a Supersonic Compression Ramp[J]. SCIENCE CHINA: Physics, Mechanics & Astronomy,2010,53(9):1651-1658.
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