Simulation of CO2 Plasma Streamer in Non-Uniform Electric Field
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Graphical Abstract
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Abstract
There are many electron collisions and chemical reactions in CO2 plasma, making conducting in-depth simulations of CO2 streamer discharge quite challenging. In this article, we establish a non-uniform electric field model for a needle-flat electrode and use a plasma fluid model and adaptive mesh refinement method to numerically simulate the CO2 plasma streamer. We studied the effects of external voltage, discharge pressure, and other parameters on the spatial field strength variation, charged particle distribution, and flow velocity in the CO2 streamer. This study contributes to a deeper understanding of the formation process of streamers in CO2 plasma utilization technology.
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