/cadence_blogs_8/b/pss/posts/part-2-simulating-aeroacoustics-from-cfd-sources-to-acoustic-propagationIn Part 1 , we looked at what aeroacoustics means and why it is such a good example of multiphysics. The basic idea is simple: moving air creates pressure fluctuations, and some of those fluctuations become sound. The engineering challenge begins whenen-USTelligent Community 13