The importance of discrete roughness and the correlations developed to predict the onset of boundary layer transition on hypersonic flight vehicles are discussed. The paper is organized by hypersonic vehicle applications characterized in a general sense by the boundary layer: slender with hypersonic conditions at the edge of the boundary layer, moderately blunt with supersonic, and blunt with subsonic. This paper is intended to be a review of recent discrete roughness transition work completed at NASA Langley Research Center in support of agency flight test programs. First, a review is provided of discrete roughness wind tunnel data and the resulting correlations that were developed. Then, results obtained from flight vehicles, in particular the recently flown Hyper-X and Shuttle missions, are discussed and compared to the ground-based correlations.


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    Title :

    Discrete Roughness Transition for Hypersonic Flight Vehicles


    Contributors:

    Conference:

    45th AIAA Aerospace Sciences Meeting and Exhibit ; 2007 ; Reno, NV, United States


    Publication date :

    2007-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Discrete Roughness Transition for Hypersonic Flight Vehicles

    S. A. Berry / T. J. Horvath | NTIS | 2007



    Discrete Roughness Transition for Hypersonic Flight Vehicles

    Berry, Scott / Horvath, Thomas | AIAA | 2007


    Discrete Roughness Transition for Hypersonic Flight Vehicles

    S. A. Berry / T. J. Horvath | NTIS | 2007


    Discrete Roughness Transition for Hypersonic Flight Vehicles

    Berry, Scott A. / Horvath, Thomas J. | NTRS | 2007