Accession Number:

ADA224725

Title:

A Finite-Element Model for Ocean Acoustic Propagation and Scattering

Descriptive Note:

Journal article

Corporate Author:

NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS

Personal Author(s):

• Murphy, Joseph E.
• Chin-Bing, Stanley A.

Report Date:

1989-10-01

Pagination or Media Count:

7.0

Abstract:

The finite-element technique has the potential to provide a very accurate treatment of the physics of acoustic-wave propagation in inhomogeneous media. This article describes the development of a finite-element model for acoustic propagation in complex ocean environments and its validation. The computational model can handle range and depth dependence in both sound speed and density, as well as rapid variations in bottom topography. Keywords Reprints Acoustic waves Elastic waves Seismic waves.

Descriptors:

• *UNDERWATER ACOUSTICS
• *OCEAN ENVIRONMENTS
• *SOUND TRANSMISSION
• COMPUTATIONS
• VALIDATION
• MODELS
• ACOUSTIC WAVES
• FINITE ELEMENT ANALYSIS
• ACCURACY
• DEPTH
• SEISMIC WAVES
• ACOUSTIC VELOCITY
• OCEAN BOTTOM TOPOGRAPHY
• SCATTERING
• ELASTIC WAVES
• MATHEMATICAL MODELS
• REPRINTS

Subject Categories:

• Physical and Dynamic Oceanography
• Seismology
• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE