Title :
2-D simulation on the corona discharge of negative needle-to-plane electrodes
Author :
Shim, Jae Hak ; Choi, Seung-Kil ; Hwang, Hui Dong ; Ha, Duk Yong ; Ko, Kwang Cheol ; Kang, Hyung Boo
Author_Institution :
Mech. & Electr. Control Dept., Sunchon First Coll., Chonnam, South Korea
fDate :
3/1/2002 12:00:00 AM
Abstract :
The characteristics of corona discharge in needle-to-plane electrodes have been simulated by two-dimensional fluid method. It was assumed that the transport coefficients of nitrogen gas were only the function of reduced electric field. In this discharge mechanism, Townsend first ionization and a secondary electron emission were considered. The spatio-temporal distributions of electron and ion densities at three discharge steps were obtained by solving continuity equations using the flux-corrected transport algorithm. This paper also describes the effect of space charges on the electric field distribution
Keywords :
Townsend discharge; corona; electric fields; electron density; ion density; secondary electron emission; space charge; N2; Townsend first ionization; continuity equation; corona discharge; electric field; electron density; flux-corrected transport algorithm; ion density; negative needle-to-plane electrode; nitrogen gas; numerical simulation; secondary electron emission; space charge; transport coefficients; two-dimensional fluid method; Corona; Discharges; Electrodes; Electron emission; Helium; Ionization; Machinery; Nitrogen; Poisson equations; Space charge;
Journal_Title :
Magnetics, IEEE Transactions on
