Vortex Flows and Related Numerical Methods II
ESAIM: Proceedings,
Vol. 1, 1996, pp. 349-362
Application of 3D Particle Method to the
Prediction of Aerodynamic Sound
K.P. Pothou, S.G. Voutsinas
NTUA, P.O. Box 64070
15710, Zografou
Athens, Greece
S.G. Huberson
GEMH, Université du Havre, B.P. 540
76058 Le Havre cedex
France
O.M. Knio
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.
Vortex Flows and Related
Numerical Methods II
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