Two-dimensional focusing of sonic boom noise penetrating an air-water interface

摘要

In the late 1960s and early 1970s research on supersonic aircraft determined that sonic boom noise would penetrate the surface of the ocean. It was assumed that the surface of the air-water interface was perfectly flat. Today, sonic boom noise is once again a topic of interest. The present work concentrates on two-dimensional focusing and defocusing, caused by ocean surface swell, of the penetrating sonic boom waveform.