Aeroacoustics

The reduction of noise in aeronautics and car industry is currently driving an intensive research in aeroacoustics. In particular, numerical tools of simulation are developed, which should provide a better understanding of the complex phenomena resulting from the interaction between acoustics and flow.
The Electromagnetism and Acoustics team is interested in the numerical simulation of acoustic scattering in presence of an arbitrary flow. The objective is to develop and implement a general finite element method in order to solve the time harmonic problem in a complex geometry.

A 2-D code for low Mach flows has been already developed: it is based on a nodal Finite Element discretization of a regularized formulation of the so-called Galbrun equation. The extension to general flows is in progress: it consists in coupling the Galbrun formulation with a Discontinuous Galerkin scheme for simulating the convection of vortices.