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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

Résultats de recherche: Le chapitre dans un livre, un rapport, une anthologie ou une collectionContribution à une conférenceRevue par des pairs

Résumé

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.

langue originaleAnglais
titre51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
étatPublié - 19 août 2013
Evénement51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013 - Grapevine, TX, États-Unis
Durée: 7 janv. 201310 janv. 2013

Série de publications

Nom51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013

Une conférence

Une conférence51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
Pays/TerritoireÉtats-Unis
La villeGrapevine, TX
période7/01/1310/01/13

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