A comprehensive review of the use of Kirchhoff's method in rotorcraft aeroacoustics is given. Kirchhoff's integral formulation allows radiating sound to be evaluated based on quantities on an arbitrary control surface S is assumed to include all the nonlinear flow effects and noise sources. Thus only surface integrals are needed for the calculation of the far-field sound. A numerical CFD method can be used for the evaluation of the flow-field solution in the near-field and thus on surface S. Kirchhoff's integral formulation has been extended to an arbitrary, moving, deformable piecewise-continuous surface.The available Kirchhoff formulations are reviewed and various rotorcraft aeroacoustic applications are given. The relative merits of Kirchhoff's method are also discussed.


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    Titel :

    The use of Kirchhoff's method in rotorcraft aeroacoustics


    Weitere Titelangaben:

    Anwendung der Kirchhoffschen Regeln für Berechnungen in der Hubschrauber-Aeroakustik


    Beteiligte:


    Erscheinungsdatum :

    1995


    Format / Umfang :

    16 Seiten, 7 Bilder, 61 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    The Use of Kirchhoff's Method in Rotorcraft Aeroacoustics

    Lyrintzis, A. S. / Advisory Group for Aerospace Research and Development / Fluid Dynamics Panel | British Library Conference Proceedings | 1995



    Aeroacoustics of Rotorcraft

    R. D. Janakiram | NTIS | 1990


    RCAAPS - Rotorcraft Computational AeroAcoustics Post-Processing System

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    Prediction of high-resolution flowfields for rotorcraft aeroacoustics

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