Laser velocimeter measurements were made during the study of a two-dimensional NACA 0012 airfoil undergoing conditions of dynamic stall. The measurements, which were obtained in the Ames 2 foot wind tunnel at reduced frequencies of 0.12 and 1.2, show significant flow field hysteresis around the static stall angle. Comparisons were also made with dual-plate interferograms and good agreement was found for the attached flow cases. For separated flow, characteristic vortex shedding caused poor agreement and significantly increased the measured Reynolds shear stresses.


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    Title :

    Laser velocimeter measurements of dynamic stall


    Contributors:
    Owen, F. K. (author)

    Publication date :

    1984-04-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English


    Keywords :


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