The vortex wake trajectory from one rotor of a 0.25-scale V-22 tiltrotor model was measured for four test conditions in the NASA Ames 40- by 80-Foot Wind Tunnel. Vortex wake images were acquired using a laser light sheet and video camera. Wake trajectories were constructed by extracting vortex positions from the video images. Wake trajectories were also calculated using the comprehensive analysis CAMRAD II. Measured and calculated wake geometries exhibit similar trends when advance ratio is varied at fixed thrust or when thrust is varied at fixed advance ratio.


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    Title :

    Vortex Wake Geometry of a Model Tilt Rotor in Forward Flight


    Contributors:

    Conference:

    Heli Japan 2002, AHS International Meeting on Advanced Rotorcraft Technology and Life Saving Activities ; 2002 ; Tochigi, Japan


    Publication date :

    2002-11-11


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Vortex Wake Geometry of a Model Tilt Rotor in Forward Flight

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