Greifswald 2024 – scientific programme

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P: Fachverband Plasmaphysik

P 10: Atmospheric Pressure Plasmas and their Applications II

P 10.5: Talk

Tuesday, February 27, 2024, 15:15–15:30, WW 1: HS

Fluid Simulation of Streamer Dynamics in Nanosecond Pulsed Surface Dielectric Barrier Discharges — •Dominik Filla, Gerrit Hübner, Nils Schoeneweihs, Ihor Korolov, Thomas Mussenbrock, and Sebastian Wilczek — Department of Electrical Engineering and Information Science, Ruhr-University Bochum

The efficient conversion of airborne pollutants, such as volatile organic compounds (VOCs) and nitrogen oxides, is not only crucial for environmental protection but also holds great scientific interest. Within this scope, surface dielectric barrier discharges (sDBD) driven by nanosecond pulses emerge as promising tools for energy-efficient gas conversion. This study delves into the streamer dynamics in sDBD systems, utilizing the 2D plasma simulation code nonPDPSIM. We demonstrate how key process parameters – such as pressure, voltage pulse amplitude, and pulse rise time – significantly influence streamer behavior, affecting its length, propagation speed, and direction. Our numerical results show a qualitative alignment with experimental data obtained from time-resolved optical emission spectroscopy. This correlation underscores the practical relevance of our simulations in advancing the understanding of plasma-based pollutant conversion.

**The authors thank a) Mark Kushner (University of Michigan) for providing nonPDPSIM and b) the DFG for financial support via SFB 1316.

Keywords: Atmospheric pressure plasmas; Low temperature plasmas; 2D plasma simulation