%0 Journal Article %T Acoustic diffraction by a rigid plate in a uniform flow %+ Propagation des Ondes : Étude Mathématique et Simulation (POEMS) %A Bonnet-Ben Dhia, Anne-Sophie %A Dahi, Lynda %A Lunéville, Éric %A Pagneux, Vincent %< avec comité de lecture %@ 0218-2025 %J Mathematical Models and Methods in Applied Sciences %I World Scientific Publishing %V 12 %N 5 %P 625-647 %8 2002 %D 2002 %R 10.1142/S0218202502001829Journal articles %X We present a mathematical framework for the problem of the acoustic diffraction by a plate located in a duct, in the presence of a uniform flow. The model is based on a velocity potential representation outside a vortex sheet which is induced by the trailing edge of the plate. Using limiting absorption techniques and singular functions decompositions, we show how to get a theoretical and numerical well-suited formulation. %G English %L hal-00990309 %U https://ensta-paris.hal.science/hal-00990309 %~ ENSTA %~ CNRS %~ INRIA %~ INRIA-SACLAY %~ INRIA_TEST %~ TESTALAIN1 %~ UMA_ENSTA %~ INRIA2 %~ TEST3-HALCNRS