A Study of the Plasma Jet Formed by the Glow Discharge in an Air Flow in the Electrode System of a Gliding Arc

The formation of a plasma jet by a glow discharge in an air flow in the electrode system of a so-called gliding arc is considered at an average discharge current of 100 mA and an air flow rate of 0.1 g/s. The displacement of a negative glow region over the cathode surface is analyzed using a sectioned plane cathode. A method for the plasma jet diagnostics by measuring the charged particle current on a special diagnostic electrode placed inside the jet is proposed. Based on the data obtained, the characteristic features of the current transfer inside the jet are obtained. The charged particle concentration inside the jet is estimated for the proposed current transfer model.