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Numerical study of bumpy airfoil flow control for low Reynolds numbers

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    20 Scopus citations

    Abstract

    This paper discusses results from two dimensional simulations of a "smooth" Eppler 398 wing profile and an inflatable or "bumpy" Eppler 398 wing profile. A discussion on computed flow fields follows for a number of test cases in an effort to understand the unique behavior seen in wind tunnel tests of inflatable wings. Experimental observations suggest that the flow over the "bumpy" profile has less separation than that of the "smooth" profile for a few low Reynolds number cases. Numerical studies suggest that the flow over the "bumpy" airfoil is more unsteady than that over the "smooth" airfoils and that the amount of lift generated by the "bumpy" airfoils is less than its smooth counterparts for a range of angles of attack at the low Reynolds numbers studied.

    Original languageEnglish
    Title of host publicationCollection of Technical Papers - 37th AIAA Fluid Dynamics Conference
    Pages785-801
    Number of pages17
    StatePublished - 2007
    Event37th AIAA Fluid Dynamics Conference - Miami, FL, United States
    Duration: Jun 25 2007Jun 28 2007

    Publication series

    NameCollection of Technical Papers - 37th AIAA Fluid Dynamics Conference
    Volume2

    Conference

    Conference37th AIAA Fluid Dynamics Conference
    Country/TerritoryUnited States
    CityMiami, FL
    Period06/25/0706/28/07

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