ORDERLY STRUCTURE IN JET TURBULENCE

Abstract

A study was made to determine whether jet turbulence is orderly in any sense, and whether the order can be enhanced and controlled by a slight periodic surging imposed at the jet exit. The technological motivation for the study was jet noise. To the extent that turbulent mixing can be accomplished by an orderly process, a new range of noise-suppression techniques becomes available, and the problem of predicting jet noise becomes much simpler.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1970
Accession Number
AD0711969

Entities

People

  • F. H. Champagne
  • S. C. Crow

Organizations

  • Boeing

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Waves
  • Boundary Layer
  • Dispersion Relations
  • Flow Visualization
  • Fluid Dynamics
  • Laminar Boundary Layer
  • Measurement
  • Motion Pictures
  • Phase Velocity
  • Photographs
  • Photography
  • Physics Laboratories
  • Reynolds Number
  • Turbulent Mixing
  • Two Dimensional
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Fluid Mechanics and Fluid Dynamics.
  • Systems Analysis and Design