CALCULATING AN ACOUSTIC FIELD IN LAMINAR-HETEROGENEOUS MEDIA

Abstract

A method for calculating acoustic fields in channels is presented. It is assumed that the channel is filled with a medium which has no shear elasticity and which is nonhomogeneous in the laminar sense. The method is based on the postulate that the selection of the field components, (the sum of which describes this field), closely correspond to the spatial structure of the acoustic field, thus facilitating the computation. The acoustic field in the channel is described by a finite number of components, each of which is in turn described by a converging integral. This technique is particularly useful when the acoustic field has a zonal structure, allowing for faster and simpler calculations, than would be possible using the conventional method of plane waves. The acoustic field was computed for the region of the refractive geometric shadow in the channel.

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Document Details

Document Type
Technical Report
Publication Date
Nov 25, 1969
Accession Number
AD0700342

Entities

People

  • V. M. Kudryashov

Organizations

  • Air Force Systems Command

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Refraction
  • Acoustic Waves
  • Acoustics
  • Boundaries
  • Coordinate Systems
  • Economic Development
  • Equations
  • Foreign Technology
  • Frequency
  • Integrals
  • Numbers
  • Plane Waves
  • Refraction
  • Stationary
  • Translations
  • Waves

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Image Processing and Computer Vision.
  • Speech Processing/Speech Recognition.