INVESTIGATION OF SUPERSONIC AIR PLASMA JET PRODUCED IN THE VKI PLASMATRON FACILITY

Damien Lequang (1) , Yacine Babou (1) , Olivier Chazot (1) , Pascal André (2)

1 VKI - von Karman Institute for Fluid Dynamics
2 LAEPT - Laboratoire arc électrique et plasmas thermiques

Thermodynamic characterization of a supersonic air plasma jet produced in the VKI Plasmatron facility is presented. Plasma flow regimes corresponding to underexpanded and highly underexpanded situations are investigated by means of Optical Emission Spectroscopy (OES) technique. Several diagnostics are presented using both molecular and atomic radiative contributions. Electron density, excitational energy distribution and molecular spectra fitting are presented.

Mots clés: Supersonic air plasma; Emission spectroscopy; Supersonic air plasma.

Domaines: Physique des plasmas [physics.plasm-ph]

Damien Lequang, Yacine Babou, Olivier Chazot, Pascal André. INVESTIGATION OF SUPERSONIC AIR PLASMA JET PRODUCED IN THE VKI PLASMATRON FACILITY. 5th International Workshop Radiation of High Temperature Gases in Atmospheric Entry, Oct 2012, Barcelona, Spain. pp.S9_3. ⟨hal-00786134⟩