Accession Number:

ADA537378

Title:

Bubbles in Sediments

Descriptive Note:

Annual rept.

Corporate Author:

WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB

Personal Author(s):

• Kargl, Steven G.

Report Date:

1998-09-30

Pagination or Media Count:

4.0

Abstract:

This research investigates the scattering of an acoustic field from bubbles embedded in a fluid saturated sediment. The primary objective is the establishment of underlying physical mechanisms for resonance scattering near the monopole resonance. Bubbles are known to be present in naturally occurring sediments particularly in littoral regions, and it has been proposed that these bubbles are primary contributors to volume scattering of sediment penetrating sonars.

Descriptors:

• *ACOUSTIC SCATTERING
• *BUBBLES
• *ACOUSTIC FIELDS
• *SEDIMENTS
• FLUIDS
• ACOUSTIC RESONANCE
• FLUID MECHANICS
• BEADS
• WAVE PROPAGATION
• IMPURITIES
• RESONANCE SCATTERING
• DYNAMICS
• HYDROPHONES

Subject Categories:

• Physical and Dynamic Oceanography
• Hydrology, Limnology and Potamology
• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE