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Imaging of fuel mixture fraction oscillations in a driven system using acetone PLIF

Kang, D. M. and Pinedo, C. and Culick, F. E. C. and Ratner, A. (2004) Imaging of fuel mixture fraction oscillations in a driven system using acetone PLIF. . http://resolver.caltech.edu/CaltechAUTHORS:20110208-083707180

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Abstract

Measurements of fuel mixture fraction are made for a jet flame in an acoustic chamber. Acoustic forcing creates a spatially-uniform, temporally-varying pressure field which results in oscillatory behavior in the flame . Forcing is at 22,27, 32, 37, and 55 Hz. To asses the oscillatory behavior, previous work included chemiluminescence, OH PUF, nitric oxide PUF imaging, and fuel mixture fraction measurements by infrared laser absorption. While these results illuminated what was happening to the flame chemistry, they did not provide a complete explanation as to why these things were happening. In this work, the fuel mixture fraction is measured through PUF of acetone, which is introduced into the fuel stream as a marker. This technique enables a high degree of spatial resolution of fuel/air mixture value. Both non-reacting and reacting cases were measured and comparisons are drawn with the results from the previous work. It is found that structure in the mixture fraction oscillations is a major contributor to the magnitude of the flame oscillations.


Item Type:Report or Paper (Working Paper)
Additional Information:© 2004. This work was supported in part by the California Institute of Technology and partly by the Air Force Office of Scientific Research (AFOSR) under Grant No. F49620-03-1-0384 (Dr. Mitat Birkan, Program Manager).
Group:Guggenheim Jet Propulsion Center
Funders:
Funding AgencyGrant Number
CaltechUNSPECIFIED
Air Force Office of Scientific Research (AFOSR)F49620-03-1-0384
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Guggenheim Jet Propulsion Center UNSPECIFIED
Record Number:CaltechAUTHORS:20110208-083707180
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20110208-083707180
Official Citation:Kang, D. M., Pinedo, C., Ratner, A., and Culick, F. E. C., “Imaging of Fuel Mixture Fraction Oscillations in a Driven System using Acetone PLIF,” Central States Meeting of the Combustion Institute, Austin, TX, March 21-23, 2004.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22063
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:15 Jul 2011 18:29
Last Modified:26 Dec 2012 12:54

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