Experimental and computational analyses of jet formation at the boundary of a decaying pulse discharge in an ambient quiescent air at 1 atm are presented. High velocity jets are observed attributed to the channel curvature set during the initial breakdown phase. The general convex-to-concave jet direction is explained, and the mechanisms of jets formation are discussed.
This paper presents the results of an experimental study of a pulse discharge in air at atmospheric pressure and the post-discharge channel decay. It is shown for the first time that a relatively small residual current suppresses the development of gas-dynamic instability and stabilizes the channel. The results of the experiments are compared with predictions of our previously developed theoretical model.
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