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Coherent Anti-stokes Raman Spectroscopy (CARS) of gun propellant flamesTemperature 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 VARS spectra of nitrogen in the reference flame were in good agreement with calculated and reported values. Single pulse CARS nitrogen spectra obtained in the propellant flames were analyzed to give temperatures consistent with values calculated using the NASA-Lewis thermochemical calculation. Comparison of a 0.1 second separated sequence of single pulse CARS spectra indicate turbulent air mixing in these propellant flames. The CARS spectral results demonstrate that temporal and spatially resolved temperature measurements could be determined in transient, turbulent flames.
Document ID
19810007779
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mcilwain, M. E.
(Geo-Centers, Inc. Newton, MA, United States)
Harris, L. E.
(ARRADCOM Dover, N.J., United States)
Date Acquired
August 11, 2013
Publication Date
November 1, 1980
Publication Information
Publication: NASA. Langley Res. Center The 17th JANNAF Combust. Meeting, Vol. 2,
Subject Category
Propellants And Fuels
Accession Number
81N16295
Funding Number(s)
CONTRACT_GRANT: DAAG29-78-C-0144
Distribution Limits
Public
Copyright
Other

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