Transition and turbulence production in a hypersonic boundary layer is investigated in the Mach 6 wind tunnel at Peking University, using Rayleigh-scattering visualization, fast-response pressure measurements, and particle image velocimetry. Detailed analysis of the experimental observations is provided. It is found that, although the second mode is primarily an acoustic wave, it causes the formation of high-frequency vortical waves. Moreover, the second mode interacts strongly with low-frequency waves, which leads to immediate transition to turbulence.


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    Title :

    Transition in Hypersonic Boundary Layers: Role of Dilatational Waves


    Contributors:
    Zhu, Yiding (author) / Zhang, Chuanhong (author) / Chen, Xi (author) / Yuan, Huijing (author) / Wu, Jiezhi (author) / Chen, Shiyi (author) / Lee, Cunbiao (author) / Gad-el-Hak, Mohamed (author)

    Published in:

    AIAA Journal ; 54 , 10 ; 3039-3049


    Publication date :

    2016-10-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






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