Numerical simulation transient electron distribution of direct current negative corona discharge in air
Abstract
In order to explore the characteristics of electron in DC negative corona discharge, microcosmic process of negative corona discharge in air is simulated in this paper. The numerical computation is established with a bar-plate electrode configuration with an inter-electrode gap of 3.3 mm, the negative DC voltage applied to the bar is 5.0 kV, the pressure in air discharge is fixed at 1.0 atm, and the gas temperature is assumed to be a constant (300 K). By solution the system of electron conservation equation, the electron mean energy conservation, the heavy species multi-component diffusion transport equation, and the Poisson’s equation, characteristics of electrons (electron mean energy, electron density, and generation and dissipation performances of electrons) at 6 representative time points during a pulse are obtained and then discussed emphatically.
- Publication:
-
IOP Conference Series: Earth and Environmental Science
- Pub Date:
- May 2017
- DOI:
- 10.1088/1755-1315/64/1/012102
- Bibcode:
- 2017E&ES...64a2102L