Study of hypersonic boundary layer transition with different reynolds numbers

Zihui Hao, Chao Yan, Yupei Qin, Ling Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Boundary layer transition is important for thermal protection and drag reduction in the design of hypersonic vehicles. A three-equation k-ω-γ model is applied in predicting a hypersonic flat plate transition with different Reynolds numbers. The transition onset advances with Reynolds number and the boundary thickness becomes thinner in the laminar zone before transition onset. The Mack modes dominate the hypersonic boundary layer transition. The first mode is viscous instability and the second mode is inviscid instability. The second mode distributes near the wall in the region Marel >1 and the value is larger than the first mode time scale in the laminar zone. The first and second mode time scale, non-turbulence viscosity and equivalent fluctuation kinetic both increase with Reynolds number increasing.

Original languageEnglish
Title of host publicationProceedings of 2016 7th International Conference on Mechanical and Aerospace Engineering, ICMAE 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages582-586
Number of pages5
ISBN (Electronic)9781467388290
DOIs
Publication statusPublished - 23 Aug 2016
Externally publishedYes
Event7th International Conference on Mechanical and Aerospace Engineering, ICMAE 2016 - London, United Kingdom
Duration: 18 Jul 201620 Jul 2016

Publication series

NameProceedings of 2016 7th International Conference on Mechanical and Aerospace Engineering, ICMAE 2016

Conference

Conference7th International Conference on Mechanical and Aerospace Engineering, ICMAE 2016
Country/TerritoryUnited Kingdom
CityLondon
Period18/07/1620/07/16

Keywords

  • CFD
  • hypersonic boundary layer
  • k-ω-γ
  • mack mode
  • transition

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Hao, Z., Yan, C., Qin, Y., & Zhou, L. (2016). Study of hypersonic boundary layer transition with different reynolds numbers. In Proceedings of 2016 7th International Conference on Mechanical and Aerospace Engineering, ICMAE 2016 (pp. 582-586). Article 7549607 (Proceedings of 2016 7th International Conference on Mechanical and Aerospace Engineering, ICMAE 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICMAE.2016.7549607