Visualization of lifted laminar jet flame by Rayleigh scattering, OH PLIF, and CH chemiluminescence

Won, Sang-Hee and Lee, Jong-Soo and Jin, Seong-Ho and Chung, Suk-Ho (2003) Visualization of lifted laminar jet flame by Rayleigh scattering, OH PLIF, and CH chemiluminescence. Journal of Visualization, 6 (3). p. 211. ISSN 1343-8875

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Official URL: http://dx.doi.org/10.1007/BF03181460

Abstract

A lifted flame in a laminar coflow jet has been vusualized, where the jet and coflow velocities were 9.0 and 4.0 cm/s, respectively, for the jet nozzle diameter of 0.25mm. To visualize the fuel concentration field for both cold (a) and reacting (b) flows, the Rayleigh scattering technique for propane fuel was adopted using an Nd:YAG laser sheet beam of 450 mJ at 532 nm. Two images of Abel transformed chemiluminescence of CH radical through a narrow band pass filter (480 nm, 10 nm FWHM) and OH PLIF image from Q1(6) line excitation are superposed on the Rayleigh image (b). The structure of the lifted flame behaving a tribrachial structure is demonstrated.

Item Type:Article
Additional Information:A lifted flame in a laminar coflow jet has been vusualized, where the jet and coflow velocities were 9.0 and 4.0 cm/s, respectively, for the jet nozzle diameter of 0.25mm. To visualize the fuel concentration field for both cold (a) and reacting (b) flows, the Rayleigh scattering technique for propane fuel was adopted using an Nd:YAG laser sheet beam of 450 mJ at 532 nm. Two images of Abel transformed chemiluminescence of CH radical through a narrow band pass filter (480 nm, 10 nm FWHM) and OH PLIF image from Q1(6) line excitation are superposed on the Rayleigh image (b). The structure of the lifted flame behaving a tribrachial structure is demonstrated.
Keywords:Lifted larminar jet, Rayleigh scattering, Chemiluminescence
Subjects:H Engineering > H840 Gas Engineering
F Physical Sciences > F360 Optical Physics
H Engineering > H800 Chemical, Process and Energy Engineering
Divisions:College of Science > School of Engineering
ID Code:4636
Deposited By: Seong-Ho Jin
Deposited On:23 Aug 2011 06:26
Last Modified:23 Aug 2011 06:26

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