The work presents a general boundary integral formulation for the unified aerodynamic and aeroacoustic analyses of lifting bodies in arbitrary motion, for transonic potential flows. Once the boundary integral representation for the velocity potential is derived, contributions from wakes and non-linear field terms are analyzed. Then, from the knowledge of the potential solution, the acoustic field is determined by applying the Bernoulli theorem. Numerical results obtained from the formulation outlined concern both aerodynamics and aeroacoustics of helicopter rotors in hover and forward flight in subsonic flows. They are compared with both existing numerical results and experimental data. Transonic results are presented only for non-lifting hovering rotors.


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    Title :

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


    Additional title:

    Eine Integralmethode für transsonische Aerodynamik und Aeroakustik von Rotoren im Vorwärtsflug


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


    Publication date :

    1995


    Size :

    11 Seiten, 12 Bilder, 39 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    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



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

    Gennaretti, M. / Iemma, U. / Morino, L. | Tema Archive | 1996


    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