An experimental investigation of the effects of a curved and flat wall surface on the flow development of an axisymmetric jet exhausting into a moving airstream has been made. Of primary concern was the comparison of the one-point statistical properties of the unconfined jet to the quantities measured in the flows over a flat plate and a curved wall surface. Quantities measured in this investigation included mean velocities in all three directions, turbulent intensities, autocorrelations, power spectral densities, and intermittencies. The investigation was confined to the near field of the turbulent jet. The curved wall (flap) was found to have a very large effect on both the mean velocity and the turbulent velocity components of the flowfield. The potential core region of the jet was found to break up most rapidly for the flow over the flap. A laser-Doppler velocimeter, using a phase locked-loop processor, was used to make the desired velocity field measurements. To determine the intermittency profiles, a laser light scattering technique was employed.


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    Title :

    An experimental investigation of a three-dimensional wall jet


    Additional title:

    Experimentelle Untersuchung eines dreidimensionalen Wandstrahls


    Contributors:
    Catalano, G. (author) / Morton, J. (author) / Humphris, R. (author)

    Published in:

    AIAA Journal ; 15 , 8 ; 1146-1151


    Publication date :

    1977


    Size :

    6 Seiten, 17 Bilder, 18 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    An experimental investigation of a three-dimensional wall jet

    CATALANO, G. D. / MORTON, J. B. / HUMPHRIS, R. R. | AIAA | 1977



    An experimental study of three-dimensional wall jets

    Maslov, V. / Mineev, B. / Secundov, A. et al. | AIAA | 2001