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Issue ESAIM: Proc.
Volume 1, 1996
Vortex flows an related numerical methods II
Page(s) 349 - 362
DOI http://dx.doi.org/10.1051/proc:1996026

ESAIM: Proc., 1996, Vol. 1, pp. 349-362
DOI: 10.1051/proc:1996026

Application of 3D particle method to the prediction of aerodynamic sound

K.P. Pothou1, S.G. Voutsinas1, S.G. Huberson2 and O.M. Knio3

1  NTUA, P.O. Box 64070 15710, Zografou Athens, Greece
2  GEMH, Université du Havre, B.P. 540 76058 Le Havre cedex, France
3  Dept. of Mechanical Engineering The Johns Hopkins University Baltimore MD 21218, USA


Abstract
Low-Mach-number aeroacoustic theories are applied to predict far-field sound emission from vortex-dominated flows. The latter are simulated using three-dimensional vortex methods. Both particle schemes and filament-based schemes are used. Comparisons of model predictions with theoretical and experimental results on the interaction of two vortex rings are first discussed. Next, the schemes are used to examine the effect of initial conditions and 3D perturbations on the properties of the far-field acoustic pressure. Finally, a more elaborate wind-turbine model is presented and its application to the evaluation of several turbine-blade designs is summarized.



© EDP Sciences, ESAIM 1996

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