Whistling of restriction orifices: aeroacoustic source identification

J. Golliard, N. González Díez, Gunes Nakiboǧlu, A. Hirschberg

    Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

    Samenvatting

    The study presents a simple source identification method applied to restriction orifices. A restriction orice in a duct can whistle when it is submitted to a low Mach number flow. The orice acts as an amplifier for the incident acoustic energy. The method, earlier presented by Martinez-Lera et al1 and improved by Nakiboglu et al,2 combines incompressible numerical simulations with vortex sound theory. The application of the method to the source identification of whistling restriction orifices predicts whistling at Strouhal numbers similar to earlier experimental and numerical studies, with limited computational effort.

    Originele taal-2Engels
    Titel17th AIAA/CEAS Aeroacoustics Conference 2011 (32nd AIAA Aeroacoustics Conference)
    Plaats van productieReston
    UitgeverijAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
    Aantal pagina's7
    ISBN van geprinte versie978-1-60086-943-3
    DOI's
    StatusGepubliceerd - 1 dec 2011
    Evenement17th AIAA/CEAS Aeroacoustics Conference - Portland, Verenigde Staten van Amerika
    Duur: 5 jun 20118 jun 2011

    Congres

    Congres17th AIAA/CEAS Aeroacoustics Conference
    Land/RegioVerenigde Staten van Amerika
    StadPortland
    Periode5/06/118/06/11

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