Simulation of Bottom-interacting Ocean Acoustics: Transition into New Applications

Abstract

The ability to accurately and efficiently model the sound field in the water column when there exists significant acoustic interaction with the seafloor is critical in a variety of ocean-acoustic applications. Simulation methods with detailed fundamental treatments of the effect of acoustic energy on an elastic solid are often insufficiently robust when the environment is complicated or when long ranges are desired. The goal of this research is the creation of stable and computationally inexpensive acoustic modeling methods that can accommodate range dependence in both the water column and the bathymetry, accurately portray bottom reflection even when it is substantially impacted by support for elastic shear conversion, and still reliably develop predictions at ranges as long as the basin scale.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2009
Accession Number
ADA533765

Entities

People

  • Michael D. Vera

Organizations

  • University of Southern Mississippi

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustics
  • Arrays
  • Bathymetry
  • Bottom Loss
  • Coefficients
  • Conversion
  • Environment
  • Frequency
  • Grazing Angles
  • Materials
  • Physics
  • Reflection
  • Seabed
  • Simulations
  • Transitions
  • Universities

Readers

  • Acoustical Oceanography.
  • Computational Modeling and Simulation