Flow and Discharge Development in an Argon Atmospheric Pressure Plasma Jet Observed by ICCD and PLIF Imaging

S. Iseni (1, 2) , S. Reuter (2, 1) , A. Schmidt-Bleker (2, 1) , K. Weltmann (1)

1 INP - Leibniz Institute for Plasma Science and Technology
2 The center for innovation competence (ZIK) plasmatis

In this paper, a megahertz atmospheric pressure plasma jet is investigated regarding its discharge pattern in correlation with the flow. Single-shot imaging shows plasma streamer development in a flow pattern determined by turbulent interaction with the atmosphere. Planar laser-induced fluorescence imaging on hydroxyl shows the flow pattern. The discharge pattern is streamer-like. Here, it can be observed that the streamer exhibits a hook-like structure at the end, which might also be attributed to the gas flow pattern.

Domaines: Physique des plasmas [physics.plasm-ph]; Plasmas; Optique / photonique; Milieux fluides et réactifs; Chimie-Physique [physics.chem-ph]; Ingénierie biomédicale

S. Iseni, S. Reuter, A. Schmidt-Bleker, K. Weltmann. Flow and Discharge Development in an Argon Atmospheric Pressure Plasma Jet Observed by ICCD and PLIF Imaging. IEEE Transactions on Plasma Science, 2014, 42 (10), pp.2458--2459. ⟨10.1109/TPS.2014.2321226⟩. ⟨hal-02270236⟩