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Sound propagation above an impedance boundary

✍ Scribed by T. Kawai; T. Hidaka; T. Nakajima

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
665 KB
Volume
83
Category
Article
ISSN
0022-460X

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✦ Synopsis

An asymptotic solution of the scalar wave field due to a point source above a locally reacting plane surface is obtained by a modified saddle point method. Numerical calculation indicates that the relatively simple solution is more accurate than the Thomasson asymptotic solution and the Chien-Soroka solution. Furthermore, it is shown that another solution, simplified still more, is also in good agreement with the exact solution.

πŸ“œ SIMILAR VOLUMES

A DUAL BOUNDARY ELEMENT FORMULATION FOR
A DUAL BOUNDARY ELEMENT FORMULATION FOR SOUND PROPAGATION AROUND BARRIERS OVER AN IMPEDANCE PLANE
✍ L.A. de Lacerda; L.C. Wrobel; W.J. Mansur πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 214 KB

In this paper, the Dual Boundary Element Method is formulated and applied to study outdoor sound propagation where acoustic barriers are modelled as non-thickness bodies that may have different impedance conditions at each side. Standard and hypersingular integral equations are applied on each side