Extrusion of a nanosecond surface discharge plasma near a dielectric ledgeстатья
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Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.
Аннотация:The presence of a dielectric ledge along the pulse discharge propagation led to a
redistribution of the pulsed surface (plasma sheets) discharge glow. Discharge glow on the
surface without the ledge, was uniform and lasted no more than 200 ns. Two plasma channels
with increased glow intensity were observed near the rectangular ledge placed in the discharge
area. The duration of these longitudinal plasma channels increased and lasted for about 0.9 μs
(at a voltage of 25 kV and a density of 0.03 – 0.18 kg/m³). A nine-frame nanosecond camera
recorded the evolution of the plasma glow. The dynamics of the flow induced by the pulse
surface discharge was recorded using a high-speed shadow imaging during 40-50 μs after the
ignition of the discharge.