Acoustic Diffraction by an Impedance Covered Half-Plane.
Abstract
Exact, closed form solutions for diffraction and backscattering by a half-plane whose surfaces exhibit arbitrary impedances were determined for the cases of a point source, a line source, and a plane wave. An integral method was devised that could account for the impedance boundary conditions. Since the solution is in a closed form, interpretation of the influence of the impedance covered half-plane on the diffraction field is greatly facilitated. Specifically, the effect of each surface on the acoustic field dominates in the half-space in which it faces. Though the effect of each surface extends into the opposite half-space behind the barrier, this influence is very small and diminishes even more as the observer moves further behind the barrier. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 15, 1976
- Accession Number
- ADA047839
Entities
People
- Robert Paul Kendig
Organizations
- Pennsylvania State University