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Numerical analysis of shock wave and supersonic turbulent boundary interaction between adiabatic and cold walls
Tong, Fulin; Tang, Zhigong; Yu ZP(于长平); Zhu, Xingkun; Li XL(李新亮); Li, XL (reprint author), Chinese Acad Sci, Inst Mech, LHD, Beijing, Peoples R China.
Source PublicationJOURNAL OF TURBULENCE
2017
Volume18Issue:6Pages:569-588
ISSN468-5248
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.

KeywordShock Wave/turbulent Boundary Layer Interaction Wall Temperature Turbulence Structure Shock Motion Dynamic Mode Decomposition
DOI10.1080/14685248.2017.1311017
Indexed BySCI
Language英语
WOS IDWOS:000400379700005
WOS SubjectMechanics ; Physics, Fluids & Plasmas
Funding OrganizationNational Key Research and Development Program of China 2016YFA0401200 National Natural Science Foundation of China 91441103 11472278 11372330 Science Challenge Project JCKY2016212A501
DepartmentLHD可压缩湍流
ClassificationQ3
Ranking1
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60708
Collection高温气体动力学国家重点实验室
Corresponding AuthorLi, XL (reprint author), Chinese Acad Sci, Inst Mech, LHD, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
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,2017,18(6):569-588.
APA Tong, Fulin,Tang, Zhigong,Yu ZP,Zhu, Xingkun,Li XL,&Li, XL .(2017).Numerical analysis of shock wave and supersonic turbulent boundary interaction between adiabatic and cold walls.JOURNAL OF TURBULENCE,18(6),569-588.
MLA Tong, Fulin,et al."Numerical analysis of shock wave and supersonic turbulent boundary interaction between adiabatic and cold walls".JOURNAL OF TURBULENCE 18.6(2017):569-588.
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