The effects of the surface undulation on the development of boundary layer instabilities are studied in the supersonic boundary layer. The direct numerical simulations are performed for the boundary layer on a flat plate at flow Mach number M = 6. The surface undulation is considered as the means of passive flow control of the laminar-turbulent transition. It has been found that a wavy portion of the surface located at some distance from the leading edge can significantly reduce the amplitude of fluctuations downstream. The effect of suppressing disturbances significantly increases with increasing both the number of waves on the surface (i.e., the length of the wavy portion), and their depth.


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    Title :

    Numerical study of supersonic boundary layer instability on a wavy surface


    Contributors:

    Conference:

    INTERNATIONAL CONFERENCE ON THE METHODS OF AEROPHYSICAL RESEARCH (ICMAR 2020) ; 2020 ; Novosibirsk, Russia


    Published in:

    Publication date :

    2021-05-24


    Size :

    6 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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