Remote Measurement of Density Fluctuations in Turbulent Flows.

Abstract

This report describes the results of a theoretical study carried out to explore the possibility of obtaining quantitative information about density fluctuations in an air turbulent flow. Specific techniques considered for analysis include a new three-level gain measurment technique, the use of laser induced gas breakdown as a diagnostic tool, and monitoring of the laser induced fluorescence signal. The effect of turbulence on the diagnostic design is considered and the possibility of conducting a laboratory experiment with the use of commercially available lasers is discussed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1979
Accession Number
ADA080108

Entities

People

  • J. S. Goela
  • L. G. Piper
  • T. F. Morse

Organizations

  • Physical Sciences (United States)

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Air Force
  • Boundary Layer
  • Electron Density
  • Electrons
  • Flow
  • Flow Fields
  • Fluorescence
  • Gas Breakdown
  • Laser Applications
  • Laser Beams
  • Laser Diodes
  • Laser Induced Fluorescence
  • Lasers
  • Measurement
  • Microsecond Time
  • Turbulent Flow

Fields of Study

  • Physics

Readers

  • Explosive Engineering.
  • Fluid Dynamics.
  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy