Acoustics in Moving Inhomogeneous Media

Acoustics in Moving Inhomogeneous Media is a complete and rigorous study that covers many fields including atmospheric and ocean acoustics, aeroacoustics, acoustics of turbulent flows, remote sensing of the atmosphere and ocean, and noise pollution in the atmosphere. The book considers sound propagation through moving media with deterministic inhomogeneities such as vertical profiles of temperature and wind velocity in the atmosphere. It moves on to a new study of sound propagation and scattering in media with random inhomogeneities in adiabatic sound speed, density, and medium velocity.

This new edition sets out state-of-the-art numerical methods for calculating the sound field and its statistical characteristics in moving inhomogeneous media, with codes downloadable from the bookâs website. It presents new extra-wide-angle and wide-angle parabolic equations in moving media, which are applicable for arbitrary Mach numbers, in the high-frequency approximation. Also new starting equations for the finite-difference time-domain simulations, and new formulations for the temporal and frequency coherence of acoustic signals, spectral broadening due to atmospheric turbulence, and the effect of turbulence on pulse propagation, with new experimental results pertinent to the statistical characteristics of the sound field.

This book is essential for graduate students and researchers in a range of theoretical and applied interests in acoustics.