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5th AIAA/CEAS Aeroacoustics Conference and Exhibit
An LES code (ALESIA for Appropriate Large Eddy Simulation for Aeroecoustics) is developed using special techniques of Computational AeroAcoustics (CAA). This approach allows a direct determination of the compressible field by solving the filtered Navier-Stokes equations. A 2-D subsonic mixing layer between two flows at 40 and 160 m.s-' is simulated in a computational domain, including the acoustic far field. The sound generated by vortex pairing is then investigated. The radiation pattern has adoi:10.2514/6.1999-1871 fatcat:rstmgdhwlfdh7o4bhshdrml33e