Abstract
Propagation of cathode-directed streamer over the helium jet in ambient air is studied in the framework of fluid model and in experiments. The streamer is initiated by applying sinusoidal voltage to the powered electrode inside of dielectric tube and propagates to the direction of treated surface. The gas mixture is calculated with ANSYS Fluent software for helium supply of 4 sl/min. The experimental data on the speed of streamer are in good agreement with calculation results. The reflection of ionization wave from the surface was observed in the experiment and in simulations. It is shown that the reflected ionization wave follows a channel produced by the streamer.
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