Comparison of 2D and 3D Predictions of the FOR3D Acoustic Propagation Model in Shallow Water Flat Bathymetry Environments

Abstract

In this study using the FOR3D Acoustic Model, little difference was found between the 2D and the 3D computational modes. The study was limited to shallow water flat bathymetry (along the slope) using sound velocity gradients normally associated with typical shelf/slope frontal environments as well as greatly inflated gradients. Several comparisons were made for specific cases (in 2D and 3D modes) having exact solutions, which by analogy provide clear demonstration of why substantial agreement was found for the two different modes.

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Document Details

Document Type
Technical Report
Publication Date
Jun 22, 2002
Accession Number
ADA403880

Entities

People

  • Allen E. Leybourne

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustics
  • Agreements
  • Angle Of Arrival
  • Bathymetry
  • Computer Programming
  • Computer Programs
  • Computers
  • Geometry
  • Grids
  • Military Research
  • Operating Systems
  • Shallow Water
  • Surface Properties
  • Three Dimensional
  • Two Dimensional
  • Word Processors

Readers

  • Coastal Oceanography
  • Computational Modeling and Simulation