Electric field distributions along helium plasma jets
| Autor: | George V. Naidis, Natalia Yu Babaeva |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
helium
discharges (electric) plasma transport processes air plasma jets electric field distributions streamers atmospheric-pressure helium plasma jets ambient air computational model helium–air mixture composition streamer propagation charged species densities spatial–temporal profiles plasma parameters helium flow rate electric field values tube exit Electrical engineering. Electronics. Nuclear engineering TK1-9971 Electricity QC501-721 |
| Zdroj: | High Voltage (2020) |
| Druh dokumentu: | article |
| ISSN: | 2397-7264 |
| DOI: | 10.1049/hve.2020.0065 |
| Popis: | Results of simulations of streamers propagating along the atmospheric-pressure helium plasma jets ejected from a thin tube into ambient air are presented. The computational model includes the equations governing the helium–air mixture composition along and across the jet, as well as the equations, describing streamer propagation in the mixture, for the electric field and the charged species densities. Streamer velocity and spatial–temporal profiles of plasma parameters are obtained for various values of the helium flow rate. It is shown, in agreement with available experimental data, that the electric field values in the heads of streamers increase nearly linearly with the distance from the tube exit and that the slope of this dependence decreases with the growth of the helium flow rate. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|
Plný text