Transition in hypersonic boundary layers | Zendy

Chuanhong Zhang | Zendy; Yiding Zhu | Zendy; Xi Chen | Zendy; Huijing Yuan | Zendy; Jiezhi Wu | Zendy; Shiyi Chen | Zendy; Cunbiao Lee | Zendy; Mohamed GadelHak | Zendy

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Transition in hypersonic boundary layers

Author(s) -

Chuanhong Zhang,

Yiding Zhu,

Xi Chen,

Huijing Yuan,

Jiezhi Wu,

Shiyi Chen,

Cunbiao Lee,

Mohamed GadelHak

Publication year - 2015

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4935019

Subject(s) - hypersonic speed , boundary layer , mach number , instability , particle image velocimetry , wind tunnel , optics , turbulence , physics , mechanics , rayleigh scattering , materials science

Transition and turbulence production in a hypersonic boundary layer is investigated in a Mach 6 wind tunnel using Rayleigh-scattering visualization, fast-response pressure measurements, and particle image velocimetry. It is found that the second-mode instability is a key modulator of the transition process. Although the second-mode is primarily an acoustic wave, it causes the formation of high-frequency vortical waves, which triggers a fast transition to turbulence

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