CARS Spectroscopy of Gun Propellant Flames.
Abstract
Temperature measurements were made in a slightly fuel rich, premixed, propane/air reference flame and nitrate ester propellant flames burning in air at atmospheric pressure using Coherent Anti-Stokes Raman Scattering (CARS). Both single and multiple-pulse CARS nitrogen spectra in the reference flame agreed with model spectra and the derived temperature agreed with sodium line reversal values. Single pulse CARS nitrogen spectra obtained in the propellant flames were analyzed to give temperatures consistent with the values calculated using the NASA-Lewis thermochemical calculation. Comparison of a 0.1-second separated sequence of single pulse CARS spectra indicated turbulent air mixing in these propellant flames. The results demonstrated that temporal and spatially resolved temperature measurements could be determined in transient, turbulent flames. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1981
- Accession Number
- ADA105224
Entities
People
- L. E. Harris
- M. E. Mcilwain
Organizations
- United States Army Armament Research, Development and Engineering Center