Evidence of the influence of plasma jets on a helium flow into open air

Marc Foletto (1) , Vincent Puech (2) , Jérôme Fontane (3) , Laurent Joly (3) , Léanne Pitchford (1)

1 LAPLACE - LAboratoire PLasma et Conversion d'Energie
2 LPGP - Laboratoire de physique des gaz et des plasmas
3 DAEP - Département Aérodynamique Energétique et Propulsion

Microplasma jets propagating in a helium flow surrounded by open air at ambient temperature have attracted the attention of many researchers for their putative ability to deliver high fluxes of reactive oxygen and nitrogen species to a target situated some centimeters away. This is of particular interest in biomedical applications. In this paper, we use Schlieren images to show that ignition of the plasma jet causes a reduction in the length of the laminar zone of the helium flow.

Mots clés: Dielectrics; Electrodes; Electron tubes; Helium; Ignition; Plasmas; Surface discharges; Atmospheric-pressure plasmas; Hydrodynamics; Dielectrics

Domaines: Plasmas

Marc Foletto, Vincent Puech, Jérôme Fontane, Laurent Joly, Léanne Pitchford. Evidence of the influence of plasma jets on a helium flow into open air. IEEE Transactions on Plasma Science, 2014, 42 (10), pp.2436-2437. ⟨10.1109/TPS.2014.2331393⟩. ⟨hal-03610610⟩