Localized pulsed nanosecond discharges in a counterflow nonpremixed flame environment Academic Article

abstract

• 2015 IOP Publishing Ltd. 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.

authors

• Miles, Richard

published proceedings

• PLASMA SOURCES SCIENCE & TECHNOLOGY

author list (cited authors)

• Guerra-Garcia, C., Martinez-Sanchez, M., Miles, R. B., & Starikovskiy, A.

citation count

• 12

complete list of authors

• Guerra-Garcia, C||Martinez-Sanchez, M||Miles, RB||Starikovskiy, A

publication date

• August 2015

publisher

• IOP Publishing  Publisher

published in

• Plasma Sources Science and Technology  Journal

keywords

• Counterflow Nonpremixed Flame
• In Situ Energy Deposition
• Pulsed Nanosecond Discharge

Digital Object Identifier (DOI)

• 10.1088/0963-0252/24/5/055010

start page

• 055010

end page

• 055010

volume

• 24

issue

• 5