This paper deals with some recent developments of a BEM (boundary element methodology) for the unified aerodynamic/aeroacoustic analysis of subsonic and transonic potential flows past helicopter rotors in hover and forward flight. In this methodology, first the potential solution is derived on the rotor-blade surfaces. Then, the boundary integral representation gives the potential everywhere in the field, and the Bernoulli theorem yields the acoustic pressure. Numerical results are presented for helicopter rotors in hover and forward flight at both subsonic and transonic rotor speeds. Comparisons with existing numerical results and experimental data are included.


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    Title :

    BEM for aerodynamics and aeroacoustics of rotors in subsonic/transonic forward flight


    Additional title:

    Grenz-Elemente-Methodologie für die Aerodynamik und Aeroakustik von Rotoren im Horizontalflug unterhalb und nahe der Schallgeschwindigkeit


    Contributors:
    Gennaretti, M. (author) / Iemma, U. (author) / Morino, L. (author)


    Publication date :

    1996


    Size :

    8 Seiten, 19 Bilder, 12 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Aerodynamics and Aeroacoustics of Subsonic and Transonic Rotors in Hover and Forward Flight

    Gennaretti, M. / Iemma, U. / Salvatore, F. et al. | British Library Conference Proceedings | 1997


    An Integral Method for Transonic Aerodynamics and Aeroacoustics of Rotors in Forward Flight

    Gennaretti, M. / Iemma, U. / Morino, L. et al. | British Library Conference Proceedings | 1995


    An integral method for transonic aerodynamics and aeroacoustics of rotors in forward fly

    Genaretti, M. / Iemma, U. / Luceri, L. et al. | Tema Archive | 1995