An acoustic analysis based on the Ffowcs Williams and Hawkings equation (Ffowcs Williams, 3. E., and Hawkings, D. L., 'Sound Generated by Turbulence and Surfaces in Arbitrary Motion:' Philosophical Transactions of the Royal Society of London, Vol. A264, No. 1151, 1969, pp. 321-342) was performed for a high-lift system. As input, the acoustic analysis used unsteady flow data obtained from a highly resolved, time-dependent, Reynolds-averaged Navier-Stokes calculation. The analysis strongly suggests that vortex shedding from the trailing edge of the slat results in a high-amplitude, high-frequency acoustic signal similar to that which was observed in a corresponding experimental study of the high-lift system.


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    Title :

    Computational aeroacoustic analysis of slat trailing-edge flow


    Additional title:

    Aeroakustische Analyse der Umströmung einer Flügelvorderkantenklappe


    Contributors:

    Published in:

    AIAA Journal ; 38 , 9 ; 1558-1564


    Publication date :

    2000


    Size :

    7 Seiten, 15 Bilder, 1 Tabelle, 22 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Computational Aeroacoustic Analysis of Slat Trailing-Edge Flow

    Bart A. Singer / David P. Lockard / Kenneth S. Brentner | AIAA | 2000


    Computational aeroacoustic analysis of slat trailing-edge flow

    Singer, Bart / Lockard, David / Brentner, Kenneth et al. | AIAA | 1999




    Aeroacoustic Measurements of Leading-Edge Slat Noise

    Pascioni, Kyle A. / Cattafesta, Louis N. | AIAA | 2016