Accession Number:

ADA629544

Title:

The Physics of Sound Scattering From, and Attenuation Through, Compliant Bubbly Mixtures and Saturated Laboratory Sediments

Descriptive Note:

Annual rept.

Corporate Author:

BOSTON UNIV MA DEPT OF AEROSPACE AND MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

2003-09-30

Pagination or Media Count:

9.0

Abstract:

The goal of this research is to acquire a quantitative understanding, leading to predictive models, of the broader aspects of linear and nonlinear sound scattering, transmission and coherency in oceanic sediments and bubbly mixtures pertinent to the shallow-water acoustics. Of particular interest is the delineation of different regimes of behavior as a function of frequency, bubble size distribution, flow characteristics and volume fraction, and sediment properties. In all cases, we focus on lower-frequency behavior for which the effective medium approximation is valid.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE