Interactions between flow fields induced by surface dielectric barrier discharge arrays
This study investigates the flow field induced by a surface dielectric barrier discharge (SDBD) system, known for its efficient pollution remediation of volatile organic compounds (VOCs). We aim to understand the flow dynamics that contribute to the high conversion observed in similar systems. Exper...
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Zusammenfassung: | This study investigates the flow field induced by a surface dielectric
barrier discharge (SDBD) system, known for its efficient pollution remediation
of volatile organic compounds (VOCs). We aim to understand the flow dynamics
that contribute to the high conversion observed in similar systems.
Experimental techniques, including schlieren imaging and particle image
velocimetry (PIV), applied with high temporal resolution, were used to analyse
the flow field. Complementary, fluid simulations are employed to investigate
the coupling between streamer and gas dynamics. Results show distinct fluid
field behaviours for different electrode configurations, which differ in
geometric complexity. The fluid field analysis of the most basic electrode
design revealed behaviours commonly observed in actuator studies. The
simulation results indicate the local information about the electron density as
well as different temporal phases of the fluid flow. The electrode design with
mostly parallel grid line structures exhibits confined vortices near the
surface. In contrast, an electrode design also used in previous studies, is
shown to promote strong gas transport through extended vortex structures,
enhancing gas mixing and potentially explaining the high conversion observed. |
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DOI: | 10.48550/arxiv.2307.15545 |