Abstract
The pilot system development in metre-scale negative laboratory discharges is studied with ns-fast photography. The systems appear as bipolar structures in the vicinity of the negative high-voltage electrode. They appear as a result of a single negative streamer propagation and determine further discharge development. Such systems possess features like glowing beads, bipolarity, different brightness of the top and bottom parts, and mutual reconnection. A 1D
model of the ionization evolution in the spark gap is proposed. In the process of the nonlinear development of ionization growth, the model shows features similar to those observed. The visual similarities between high-altitude sprites and laboratory pilots are striking and may indicate that they are two manifestations of the same natural phenomenon.
model of the ionization evolution in the spark gap is proposed. In the process of the nonlinear development of ionization growth, the model shows features similar to those observed. The visual similarities between high-altitude sprites and laboratory pilots are striking and may indicate that they are two manifestations of the same natural phenomenon.
| Original language | English |
|---|---|
| Article number | 425203 |
| Number of pages | 10 |
| Journal | Journal of Physics D: Applied Physics |
| Volume | Journal of Physics D: Applied Physics |
| Issue number | 49 |
| DOIs | |
| Publication status | Published - 22 Sept 2016 |
Keywords
- discharge, pilot system, sprite, ionization front, modeling, streamer, encounter