Sound Propagation
Abstract
This chapter introduces the wave equation and the Helmholtz equation, along with plane, cylindrical, and spherical waves, for sound propagation in a lossless fluid. The concept of sound absorption is discussed in the context of a viscous fluid, in which the propagation is governed by Stokes' equation. Progressing to a more complicated medium, the grain-shearing theory of compressional- and shear-wave propagation in unconsolidated marine sediments is developed. Moving sources and receivers in homogeneous fluid media are then considered, followed by an analysis of reflection from and transmission ...
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