A new approach of alleviating high angle-of-attack side force on slender, pointed forebodies comprising a symmetrical pair of helical separation trips to disrupt the lee-side vortices, has been demonstrated. Subsonic wind tunnel measurements on two axi-symmetric pointed bodies, a fuselage of non-circular cross-section and a wing-fuselage combination, at angles of attack up to 56 degrees are presented. Also included are water-tunnel flow visualization results portraying the action of helical trips in rapidly diffusing the leeward vortices and preventing vortex-wake asymmetry.


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    Title :

    Side-force alleviation on slender, pointed forebodies at high angles of attack


    Contributors:
    Rao, D. M. (author)

    Conference:

    Atmospheric Flight Mechanics Conference ; 1978 ; Palo Alto, CA


    Publication date :

    1978-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English