Application of Coherent Anti-Stokes Raman Scattering to Combustion Media.

Abstract

A laboratory-based system utilizing the Nd:YAG laser has been developed to investigate the Coherent Anti-Stokes Raman Scattering (CARS) of molecular gases in combustion. Single-shot and simultaneous experimental measurements of species concentration and temperature of combustion media are reported and compared with other optical techniques and theoretical predictions. The adverse effects of beam propagation through turbulence are investigated and discussed. A transportable hardened CARS system, constructed to operate in adverse environments, has been used to conduct a series of investigations in a practical combustion tunnel. Temperature and number-density measurements made as a function of fuel-air flow, position in the combustion tunnel, and fuel variation--including both gaseous and liquid fuels--are reported. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1981
Accession Number
ADA103932

Entities

People

  • Gary L. Switzer
  • Larry P. Goss

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Combustion
  • Data Processing
  • Detection
  • Diagrams
  • Doppler Effect
  • Dye Lasers
  • Laser Beams
  • Liquid Dye Lasers
  • Measurement
  • Optical Properties
  • Optics
  • Plastic Explosives
  • Refractive Index
  • Scattering
  • Spectra
  • Test Facilities

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy