Parametric studies of aerofoil-vortex interaction; a numerical approach using LES

    Authors

    M. Ilie; F. Nitzsche;E. Matida

    Comments

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    Abbreviated Journal Title

    Aeronaut. J.

    Keywords

    Engineering, Aerospace

    Abstract

    The influence of angle-of-attack and vortex-aerofoil vertical miss-distance on the aerofoil-vortex mechanism of interaction is investigated numerically using the large-eddy simulation approach. The study concerns the aerofoil-vortex interaction (AVI) phenomena encountered in the rotorcraft aerodynamics. The studies are performed for a Reynolds number of 1.3 x 10(6) based on the chord (c = 0.2m) of the aerofoil and free-stream velocity U = 100ms(-1). The studies are conducted for three different angles-of-attack (alpha = 0 degrees, and alpha = 5 degrees, alpha = 10 degrees) and vertical miss-distances (h = 0.0m, h = -0.01, h = -0.02m) respectively. The present study shows that the magnitude of lift coefficient and flow separation, at the instant of interaction, decay with the increase of angle-of-attack and vertical miss-distance.

    Journal Title

    Aeronautical Journal

    Volume

    115

    Issue/Number

    1173

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    703

    Last Page

    711

    WOS Identifier

    WOS:000297434900005

    ISSN

    0001-9240

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