Propagation of sound in a fast bottom underlying a wedge-shaped medium
Bradshaw, Norine A.
Coppens, Alan B.
Sanders, James V.
MetadataShow full item record
The pressure and phase distribution of sound in a fast fluid medium underlying a tapered fluid medium was modeled using a Green's function approach. The model predicted well defined beams in the bottom, with apparent interference effects strongly evident for cases at a distance from the wedge interface. The effects of attenuation on the patterns were studied. A simple expression for determining the beam depression angle as a function the wedge angle, the sound speed ratio and the density ration was derived. Comparisons with laboratory measurements were made.