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P: Fachverband Plasmaphysik

P 25: Theory and Modeling III

P 25.1: Hauptvortrag

Donnerstag, 16. März 2017, 08:30–09:00, HS 2010

Modeling streamer discharges in strong magnetic fields — •Jannis Teunissen¹, Anbang Sun², and Ute Ebert³ — ¹Centre for Mathematical Plasma-Astrophysics, KU Leuven, Belgium — ²Xi'an Jiaotong University, China — ³Centrum Wiskunde & Informatica, Amsterdam, The Netherlands

There exist many electric discharges in which magnetic effects play a major role, but streamers are typically not one of them. However, it appears that in Jupiter's atmosphere streamers could actually be magnetized. Here we employ numerical simulations to investigate this phenomenon, using a combination of 3D particle-in-cell simulations, electron transport calculations, and plasma fluid modeling. We observe that streamer inception, propagation and branching are all affected by a strong external magnetic field, and we discuss how this can be related to the modified electron transport properties.