The initial boundary-layer state can significantly affect the radiated noise from an axisymmetric jet. Jets with initially laminar boundary layers are found to emit more noise. Thus, 'cleaner' far-field noise characteristics are achieved in tripped jets. Data suggest that the additional noise in the initially laminar case partly originates from the first stage of pairing of the coherent shear-layer vortices.


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    Title :

    Effect of initial condition on subsonic jet noise


    Contributors:

    Published in:

    Publication date :

    1985-09-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Effect of initial condition on subsonic jet noise

    ZAMAN, K. B. M. Q. / George Washington / University et al. | AIAA | 1985





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