Sensitivity Study on Computational Parameters for the Prediction of Noise Generated by Counter-Rotating Open Rotors

T. Deconinck, A. Capron, Virginie Barbieux, Charles Hirsch, Ghader Ghorbaniasl

    Onderzoeksoutput: Conference paper

    12 Citaten (Scopus)

    Samenvatting

    An innovative aeroacoustic prediction method for Contra-Rotating Open Rotors (CROR)
    based on the nonlinear harmonic method (NLH) for the CFD computations and on the
    Ffowcs Williams and Hawkings (FW-H) equations for the far-field acoustic propagation is
    described. This method is tested on a generic 8x8 puller CROR at typical take-off conditions.
    The outstanding efficiency of the prediction method in terms of CPU cost is demonstrated in
    this study. An analysis of the aerodynamic interactions between the two rotors as well as of
    the aeroacoustic field radiated in the far-field is presented, allowing for an improved
    understanding of noise generation mechanisms. Sensitivity studies on certain computational
    parameters are presented to provide guidelines for the numerical prediction of noise
    generated by CROR.
    Originele taal-2English
    TitelAIAA Paper, AIAA 2011-2765
    StatusPublished - 5 jun 2011
    EvenementUnknown -
    Duur: 5 jun 2011 → …

    Conference

    ConferenceUnknown
    Periode5/06/11 → …

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