The numerical simulation of the prediction of the aerodynamic noise by the resolutionof the Navier-Stokes equations is still out of reach of the supercomputers for the industrialconfigurations. The local aerodynamic computation must be coupled to an acousticpropagation method in a zone where the mean flow is inhomogeneous. The numericalresolution of the Euler equations in a perturbation form, discretized by a filtered highorderfinite difference method, allows to simulate the acoustic propagation in such zones.Several stabilization methods are studied. A high-order curvilinear interface, based on aLagrange interpolation in a reference element, is developed to facilitate the Large-EddySimulation/Euler coupling. This numerical method is applied to the study of the radiationfrom noise sources in the slat cove of a high-lift wing in approach configuration, and, tothe prediction of the radiated noise from the turbulent flow around a flat plate.
