Modelling Scattering From Partially Buried Cylinders

Abstract

A boundary integral equation method is presented for the computation of the acoustic field scattered from a cylindrical object which is totally within the water column, totally buried in sediment, or partially buried. The unknown field quantities within the cylindrical object (which may have internal cylindrical layering) are represented by a Fourier/Bessel series with unknown coefficients. The pressure field and its radial derivative on the exterior of the cylinder are related to this series and a system of equations for the unknown coefficients derived. This method is used to compute the spectral curves for the backscattered field as a function of cylinder burial. Some two-dimensional full-field computations for scattering from cylindrical objects are also presented.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1996
Accession Number
AD1120714

Entities

People

  • J. A. Fawcett

Organizations

  • NATO

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Scattering
  • Acoustics
  • Amplitude Modulation
  • Backscattering
  • Bessel Functions
  • Boundaries
  • Computational Fluid Dynamics
  • Computational Science
  • Coordinate Systems
  • Equations
  • Frequency
  • Integral Equations
  • Nato
  • New York
  • Numerical Integration
  • Plane Waves
  • Reflection
  • Regions
  • Scattering
  • Schematic Diagrams
  • Three Dimensional
  • Two Dimensional

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Geotechnical Engineering.