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Study of fast gas heating in a capillary nanosecond discharge in air. TALIF O atoms measurements and kinetic modeling

  • Andrei V. Klochko
  • , Joseph Lemainque
  • , Nikolay A. Popov
  • , Jean Paul Booth
  • , Svetlana M. Starikovskaya
  • Moscow State University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Measurements of discharge parameters, namely of the electric current, electric filed and energy deposition, have been obtained for a nanosecond discharge (20 kV amplitude and 30 ns duration) in air flow in a capillary for a pressure range 16-60 mbar. Rotational temperature has been measured in the discharge and near afterglow using emission of the second positive system of molecular nitrogen excited by additional pulses. TALIF technique was adjusted and preliminary measurements of O-atoms density were performed. A set of discharge and afterglow reactions was suggested to describe the kinetics of fast gas heating in the near (a few microseconds) afterglow of the discharge. It was shown that theoretical calculations of gas temperature correlate well with the obtained experimental values for the first two pulses, although measured data for oxygen atoms density are significantly lower than theoretically predicted values.

Original languageEnglish
Title of host publication51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
Publication statusPublished - 19 Aug 2013
Event51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013 - Grapevine, TX, United States
Duration: 7 Jan 201310 Jan 2013

Publication series

Name51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013

Conference

Conference51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
Country/TerritoryUnited States
CityGrapevine, TX
Period7/01/1310/01/13

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