Accession Number:

ADA222218

Title:

Multiple Scattering of Sound by Correlated Monolayers

Descriptive Note:

Corporate Author:

ILLINOIS UNIV AT CHICAGO CIRCLE DEPT OF MATHEMATICS

Personal Author(s):

Report Date:

1983-01-01

Pagination or Media Count:

17.0

Abstract:

Earlier results for scattering by random uncorrelated planar distributions, and by double periodic planar configurations of relatively arbitrary obstacles, are generalized to pair-correlated nonsymmetrical monolayers. The existing development for parallel cylinders in terms of the Zernike-Prins one-dimensional pair function px, is extended to analogous two- dimensional distributions specified by pR for aligned impenetrable disks. We obtain the average multiple scattered transmitted and reflected waves, and an energy conserving approximation of the differential scattering cross section per unit area. Simplified forms are developed to facilitate determining p by inverting measured data. Closed form low-frequency results are derived for identical ellipsoids aligned nonsymmetrically to the plane of centers, and the array multipole-coupling processes are discussed in terms of functions of p and their approximations. KR

Subject Categories:

  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE