Results are presented from three experiments in which direct, local measurements of the skin friction reduction due to flat-plate turbulence manipulators for overall viscous drag reduction were obtained. The results suggest that only a very small overall net drag reduction will be possible for such devices at moderate momentum thickness-derived Reynolds number values, since maximum skin friction drag is neither large nor sustained.


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    Title :

    Skin friction measurements following manipulation of a turbulent boundary layer


    Contributors:

    Published in:

    Publication date :

    1987-03-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English