Comparison of $\mu $ s- and ns-Pulse Gliding Discharges in Air Flow

Pulsed power can provide instantaneously high power density to generate atmospheric nonthermal plasma in open air. In this paper, using two power supplies including a μs-pulse generator with a rise time of 300 ns and a pulsewidth of 5 μs and a ns-pulse generator of a rise time of 70 ns and a pulsewidth of 100 ns, pulsed gliding discharges are created with point-to-point electrodes in open air. Discharge images with these two generators under different flow rates are presented for a brief comparison of μsand ns-pulse gliding discharges in air flow.