This chapter presents an introduction to the solution of time-harmonic acoustic problems by
a boundary element method (BEM). Specifically, the Helmholtz equation with admittance …

Green's functions for acoustic problems is the fundamental solution to the inhomogeneous
Helmholtz equation for a point source, which satisfies specific boundary conditions. It is very …

This textbook is aimed at university students specializing in mathematics and natural
sciences and at all the readers interested in studying complex analysis. The mathematical …

A coupled approach is proposed for predicting sound radiation from a monopole in arbitrary
motion in a moving and inhomogeneous atmosphere. It is based on a heuristic model …

Synthetic Aperture Sonar (SAS) coherently processes the acoustic data acquired along a
linear trajectory. The imaging process is in essence an inverse problem where the reflectivity …

An analytic solution for the problem of sound radiation by a harmonic line source moving at
a uniform subsonic speed parallel to an impedance plane is proposed. The main originality …

This paper investigates the sound fields generated by a source moving horizontally at a
constant speed above a non-locally reacting flat ground. The present study offers an …

PACS numbers: 43.28. Js, 43.28. En, 43.20. El A time-domain solver of the linearized Euler
equations is used to study outdoor propagation of acoustic waves generated by broadband …

In this paper, the sound field due to a line source moving above a homogeneous semi-
infinite fluid medium emitting an arbitrary time signal is deduced. The source moves with a …

Although time-domain solutions of the linearized Euler equations are well adapted to study
the acoustic propagation in an outdoor environment, the modeling of sources in motion in …