A REVIEW OF FLOW NOISE RESEARCH RELATED TO THE SONAR SELF NOISE PROBLEM

Abstract

This report is a review of the literature concerning the excitation of structures by random pressure fluctuations in a turbulent boundary layer and the consequent acoustic radiation. Such radiation is termed flow noise. The purpose of the report is to determine those aspects of analysis and experiment on the subject that are pertinent to the generation of self noise in a sonar. The report is concerned with the physical mechanisms governing flow noise, with the prediction of the magnitude and distribution in frequency of flow noise, and with the discovery of measures that may be taken to reduce its influence upon sonar self noise. The outstanding research problems remaining in the field are pointed out, and recommendations are made for the direction of further research.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1966
Accession Number
AD0632009

Entities

People

  • Patrick Leehey

Organizations

  • Arthur D. Little

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Properties
  • Acoustics
  • Aircrafts
  • Boundary Layer
  • Boundary Layer Flow
  • Computational Science
  • Frequency Bands
  • Mechanics
  • Pressure Measurement
  • Resonant Frequency
  • Standing Waves
  • Statistical Analysis
  • Statistics
  • Surface Roughness
  • Turbulent Boundary Layer
  • Turbulent Flow
  • Wind Tunnels

Fields of Study

  • Engineering

Readers

  • Acoustical Oceanography.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Systems Analysis and Design