Computational Aeroacoustics Simulations Using the Expansion About Incompressible Flow Approach

A series of two-dimensional numerical simulations is conducted in an effort to understand the behavior and validate the performance of a split hydrodynamic-acoustic computational aeroacoustics approach coupled with a specially tailored nonreflecting boundary condition. Validation cases considered include the classic aeroacoustic problem of the spinning vortex pair, the far-field aeolian tone prediction for a cylinder in crossflow, and the prediction of sound generation in a shear layer.