Preliminary compliant wall skin friction test results obtained in a low-turbulence pressure tunnel are reported. Compliant surface skins consisted of 0.0025 cm thick mylar, stretched under tension and area-bonded or longitudinally strip-bonded with silicone rubber adhesive to polyurethane foam. Mean velocity and fluctuating survey data were obtained with a single slanted hot wire. Mean velocity profiles for the area-bonded mylar surface skins indicated up to a 20% reduction in boundary-layer thickness (and lower momentum thickness) over rigid surfaces. This reduction in boundary-layer thickness indicates that a drag reduction occurred. In addition, a 16% reduction in wall shear was evident for the mylar/compressor foam compliant surface.


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    Titel :

    Experimental verification of turbulent skin friction reduction with compliant walls


    Beteiligte:
    Weinstein, L. M. (Autor:in) / Fischer, M. C. (Autor:in) / Ash, R. L. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1975-07-01


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Experimental Verification of Turbulent Skin Friction Reduction with Compliant Walls

    Leonard M. Weinstein / Michael C. Fischer / Robert L. Ash | AIAA | 1975


    Compliant wall-turbulent skin-friction reduction research

    FISCHER, M. / WEINSTEIN, L. / BUSHNELL, D. et al. | AIAA | 1975