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Title:
Numerical analysis of shock wave and supersonic turbulent boundary interaction between adiabatic and cold walls
Author: Tong, Fulin1; Tang, Zhigong2; Yu ZP(于长平)3; Zhu, Xingkun3; Li XL(李新亮)3,4
Source: JOURNAL OF TURBULENCE
Issued Date: 2017
Volume: 18, Issue:6, Pages:569-588
Abstract: Direct numerical simulations of shock wave and supersonic turbulent boundary layer interaction in a 24 degrees compression ramp with adiabatic and cold-wall temperatures are conducted. The wall temperature effects on turbulence structures and shock motions are investigated. The results are validated against previous experimental and numerical data. The effects of wall cooling on boundary layer characteristics are analysed. Statistical data show that wall cooling has a significant effect on the logarithmic region of mean velocity profile downstream the interaction region. Moreover, the influence of wall temperature on Reynolds stress anisotropy is mainly limited in the near-wall region and has little change on the outer layer. As the wall temperature decreases, the streamwise coherency of streaks increases. Based on the analysis of instantaneous Lamb vector divergence, the momentum transport between small-scale vortices on cold-wall condition is significantly enhanced. In addition, spectral analysis of wall pressure signals indicates that the location of peak of low-frequency energy shifts toward higher frequencies in cold case. Furthermore, the dynamic mode decomposition results reveal two characteristic modes, namely a low-frequency mode exhibiting the breathing motion of separation bubble and a high-frequency mode associated with the propagation of instability waves above separation bubble. The shape of dynamic modes is not sensitive to wall temperature.
Keyword: Shock wave/turbulent boundary layer interaction ; wall temperature ; turbulence structure ; shock motion ; dynamic mode decomposition
Language: 英语
Indexed Type: SCI
Corresponding Author: Li, XL
Correspondent Email: lixl@imech.ac.cn
DOI: 10.1080/14685248.2017.1311017
DOC Type: Article
WOS Subject: Mechanics ; Physics, Fluids & Plasmas
WOS ID: WOS:000400379700005
ISSN: 468-5248
Funder: National Key Research and Development Program of China 2016YFA0401200 National Natural Science Foundation of China 91441103 11472278 11372330 Science Challenge Project JCKY2016212A501
Department: LHD可压缩湍流
Classification: Q3
First Institution (Yes or Not): True
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/60708
Appears in Collections:高温气体动力学国家重点实验室_期刊论文

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description.institution: 1.China Aerodynam Res & Dev Ctr, Computat Aerodynam Inst, Mianyang, Peoples R China
2.China Aerodynam Res & Dev Ctr, Mianyang, Peoples R China
3.Chinese Acad Sci, Inst Mech, LHD, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China

Recommended Citation:
Tong, Fulin,Tang, Zhigong,Yu ZP,et al. Numerical analysis of shock wave and supersonic turbulent boundary interaction between adiabatic and cold walls[J]. JOURNAL OF TURBULENCE,2017-01-01,18(6):569-588.
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