Simulation of linearly extended streamer with planar geometry at atmospheric pressure

Abstract

Abstract The cold atmospheric plasma (CAP) jet is used in different applications, for example, in medicine. Typical plasma devices have the cylindrical symmetry. In this work, the new type of device with planar geometry of CAP jet is considered. The initiation of two-dimensional streamer and its propagation from linearly extended electrode to the treated surface is considered with the help of 2D fluid discharge model. Differently to the case of an axially symmetric plasma jet, the streamer head has a plate shape and the ionization wave propagates with considerably larger velocity.