A detailed computational aeroacoustic analysis of a high-lift flowfield is performed. Time-accurate Reynolds averaged Navier-Stokes computations simulate the free shear layer that originates from the slat cusp. Both unforced and forced cases are studied. Preliminary results show that the shear layer is a good amplifier of disturbances in the low- to midfrequency range. The Ffowcs Williams and Hawkings equation is solved to determine the acoustic field using the unsteady flow data from the Reynolds averaged Navier-Stokes calculations. The noise radiated from the excited shear layer has a spectral shape qualitatively similar to that obtained from measurements in a corresponding experimental study of the high-lift system.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Time-accurate simulations and acoustic analysis of slat free shear layer


    Weitere Titelangaben:

    Numerische Simulation der zeitlichen Entwicklung und der Schallemission der freien Scherströmung an einem Vorflügel


    Beteiligte:
    Khorrami, M.R. (Autor:in) / Singer, B.A. (Autor:in) / Berkman, M.E. (Autor:in)

    Erschienen in:

    AIAA Journal ; 40 , 7 ; 1284-1291


    Erscheinungsdatum :

    2002


    Format / Umfang :

    8 Seiten, 15 Bilder, 1 Tabelle, 18 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Time-accurate simulations and acoustic analysis of slat free-shear layer

    Khorrami, Mehdi / Singer, Bart / Berkman, Mert | AIAA | 2001


    Time-Accurate Simulations and Acoustic Analysis of Slat Free Shear Layer

    Mehdi R. Khorrami / Bart A. Singer / Mert E. Berkman | AIAA | 2002



    Time-Accurate Simulations and Acoustic Analysis of Slat Free-Shear-Layer: Part II

    Khorrami, Mehdi / Singer, Bart / Lockard, David | AIAA | 2002