The use of Kirchhoff's method in rotorcraft aeroacoustics
The use of Kirchhoff's method in rotorcraft aeroacoustics
- New search for: Lyrintzis, A.S.
- New search for: Lyrintzis, A.S.
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.
Document information
The use of Kirchhoff's method in rotorcraft aeroacoustics
Anwendung der Kirchhoffschen Regeln für Berechnungen in der Hubschrauber-Aeroakustik
1995
16 Seiten, 7 Bilder, 61 Quellen
Conference paper
English
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