Localized pulsed nanosecond discharges in a counterflow nonpremixed flame environment
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Localized pulsed.pdf
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1.42 MB
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Author(s)
Miles, R B
Starikovskiy, A
Guerra Garcia, Carmen
Martinez-Sanchez, Manuel
Date Issued
August 2015
Journal
Plasma Sources Science and Technology
Publisher
IOP Publishing
Citation
Guerra-Garcia, C; Martinez-Sanchez, M; Miles, R B and Starikovskiy, A. “Localized Pulsed Nanosecond Discharges in a Counterflow Nonpremixed Flame Environment.” Plasma Sources Science and Technology 24, no. 5 (August 27, 2015): 055010. © 2015 IOP Publishing
Version
Final published version
Abstract
A flame is a very unusual environment for the development of a gas discharge, since it presents strong gradients in temperature, composition, and pre-ionization. In this paper we examine how such an environment impacts the development of the plasma when using repetitive pulsed nanosecond discharges, one of the main strategies used in the field of plasma assisted combustion. Experiments were performed in a counterflow nonpremixed burner with parallel electrodes at the nozzle exits and nanosecond-resolved photography of the plasma emission is presented. It was shown that the discharge development in stratified media may take place in the form of a dielectric barrier discharge with a localized energy deposition. In the experiments presented the discharge energy was coupled to the flame front because of the high rate of chemi-ionization and the gas density decrease in the flame.
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1088/0963-0252/24/5/055010
