Evaluation of Boundary Conditions for Computational Aeroacoustics

摘要

The performance of three acoustic boundary condition formulations is investigated by computing a test problem with a known analytic solution. By using a fixed grid and time step, all variations in the solution arc due solely to the boundary condition. The effect of implementation differences on the performance of a given boundary condition is also studied. Details of all implementations are given. Results are shown for the acoustic field of a monopole in a uniform freestream.