Göttingen 2025 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 14: Atmospheric Plasmas and their Applications IV
P 14.5: Vortrag
Mittwoch, 2. April 2025, 15:15–15:30, ZHG006
The Impact of Electrohydrodynamic Forces on Vortex Formation and Flow Behavior in sDBD Systems — •Dominik Filla1, Alexander Böddecker1, Mate Vass1, Ihor Korolov1, Thomas Mussenbrock1, and Sebastian Wilczek2,3 — 1Department of Electrical Engineering and Information Science, Ruhr-University Bochum, D-44780, Bochum, Germany — 2TH Georg Agricola University, D-44787, Bochum, Germany — 3enaDyne GmbH, D-04103, Leipzig, Germany
The efficient conversion of greenhouse gases and volatile organic compounds (VOCs) remains a significant challenge for environmental sustainability and innovative chemical processes. Surface dielectric barrier discharges (sDBDs) driven by nanosecond pulses offer a promising approach to address these challenges by leveraging the complex interplay between discharge and fluid dynamics. This study investigates the coupling between electrohydrodynamic (EHD) forces induced by positive and negative streamers and gas flow in He/N2 sDBD systems. Using 2D plasma-fluid simulations, we evaluate the impact of EHD forces on vortex formation and flow behavior. Numerical results reveal that streamers produce localized EHD forces, subsequently driving flow dynamics and shaping overall gas flow patterns in the system. The simulations show high qualitative agreement with experimental data, including particle image velocimetry and schlieren measurements. This work highlights the potential of plasma-assisted flow control to advance the understanding and optimization of gas flow processes in dielectric barrier discharge systems. Supported by the DFG via SFB 1316.
Keywords: 2D Plasma Simulation; Flow Simulation