The effects of the distributed surface roughness on mean flow distortion and generation of flow instabilities in a supersonic boundary layer at Mach number 2 are studied with the direct numerical simulation. Roughness elements cause distortions of the mean flow field and flow unsteadiness in their wake. Farther downstream, growth of the fluctuations contained in the streamwise vortices and the interaction of the adjacent vortices lead to a breakup of the boundary layer manifesting the beginning of the laminar–turbulent transition.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    DNS of surface roughness effects on laminar–turbulent transition in a supersonic boundary layer


    Contributors:

    Conference:

    INTERNATIONAL CONFERENCE ON THE METHODS OF AEROPHYSICAL RESEARCH (ICMAR 2016): Proceedings of the 18th International Conference on the Methods of Aerophysical Research ; 2016 ; Perm, Russia


    Published in:

    Publication date :

    2016-10-13


    Size :

    6 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Numerical Simulations of Laminar-Turbulent Transition In Supersonic Boundary Layer

    Jiang, Li / Choudhari, Meelan / Chang, Chau-Lyan et al. | AIAA | 2006


    Numerical Simulations of Laminar-Turbulent Transition In Supersonic Boundary Layer

    Jiang, L. / Choudhari, M. / Chang, C. et al. | British Library Conference Proceedings | 2006