OH LIF (Laser-Induced Fluorescence) Temperature Measurements in High Pressure Solid Propellant Flames

Abstract

An attempt to apply Hydroxyl radical laser induced fluorescence temperature measurements to high pressure solid propellant flames is described. The requirement for broadband spectral collection is discussed. In high pressure propellant flames of AP, HMX, and AN, the broadband detection decreased the light rejection of the system to the point that scattered laser light overwhelmed the OH LIF signal and rendered the measurement unsuccessful. Earlier CN and OH LIF experiments using narrowband data collection were successful, allowing radical profiles to be obtained. The difference between the two sets of experiments illustrate the need for high light rejection efficiencies in any laser-diagnostic measurement in the highly scattering environment of a propellant flame. Keywords: Solid rocket propellants, Combustion spectroscopy, Combustion diagnostics.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1989
Accession Number
ADA206637

Entities

People

  • J. T. Edwards

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Artificial Satellites
  • Chemistry
  • Classification
  • Coefficients
  • Combustion
  • Computers
  • Ground State
  • Laser Beams
  • Laser Induced Fluorescence
  • Materials Laboratories
  • Materials Science
  • Measurement
  • Repetition Rate
  • Solid Propellants
  • Space Systems
  • Spectroscopy
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Internal Combustion Engine (ICE) Technology.
  • Optical Physics and Photonics.
  • Organic Chemistry

Technology Areas

  • Directed Energy