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    Effect of compliant wall motion on turbulent boundary layers (1977)
    In:  CASI
    Details
    Publication Date: 2017-10-02
    Description: A critical analysis of available wall data which indicated drag reduction under turbulent boundary layers. Detailed structural dynamic calculations suggest the surfaces responded in a resonant, rather than compliant, manner. Alternate explanations are given for drag reductions observed in two classes of experiments: flexible pipe flown, and waterbacked membranes in air. Analysis indicates the wall motion for the remaining data is typified by short wave lengths in agreement with the requirement of a possible compliant wall drag reduction mechanism recently suggested by Langley.
    Keywords: AERODYNAMICS
    Type: AGARD Spec. Course on Concepts for Drag Reduction; 26 p
    Format: text
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