24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-3.4.2

DISCONTINOUS GALERKIN METHOD FOR DUCT ACOUSTICS

C. P. A. Blom, R. Hagmeijer, H. W. M. Hoeijmakers
Group Engineering Fluid Dynamics, University of Twente, Netherlands

Keywords: Discontinuous Galerkin, Computational Aeroacoustics, Duct Acoustics

In the present paper analytical and numerical results obtained for the problem of acoustic radiation from a vibrating wall segment inside an infinite rectangular duct with uniform mean flow are presented and compared. The numerical results are obtained employing a recently developed Discontinuous Galerkin finite element method implemented on a tetrahedral grid.

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