Non-equilibrium plasma discharge: Characterization and effect on ignition

Timothy Ombrello, Xiao Qin, Yiguang Ju, Shailesh Gangoli, Alexander Gutsol, Alexander Fridman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


The characterization of stabilized piecewise non-equilibrium gliding arc plasma discharge and its effect on the ignition of nitrogen diluted methane-air counter flow flames have been investigated both experimentally and numerically. The motivation and focus of this work was to better categorize the non-equilibrium gliding arc discharge, as well as to study its effects on ignition enhancement by developing a more fundamental understanding of the interaction of non-equilibrium plasma with flames. To further identify the gliding arc plasma characteristics, spectral diagnostics were performed. The OH and N2 spectrum were obtained and plasma rotational/vibrational temperatures were computed using theoretical well known techniques. Using visual imaging and reasonable assumptions, the current and electron densities at the cathode spot in the plasma arc have been estimated, which seem reasonably consistent with earlier investigations.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Number of pages9
StatePublished - 2006
Event44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States
Duration: Jan 9 2006Jan 12 2006

Publication series

NameCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting


Other44th AIAA Aerospace Sciences Meeting 2006
Country/TerritoryUnited States
CityReno, NV

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering


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