Title :
A simulation of the corona discharge by FCT method
Author :
Choi, Seung-kil ; Shim, Jae-Hak ; Ko, Kwang-Cheol ; Lee, Cheon ; Kang, Hyung-Boo
Author_Institution :
Dept. of Electr. Eng, Ansan Coll. of Technol., Kyungki, South Korea
Abstract :
The characteristics of corona discharge in needle to plane electrodes have been simulated by a 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 FCT algorithm. This paper also describes the effect of space charge on the electric field distribution
Keywords :
Townsend discharge; corona; electric fields; electrodes; space charge; FCT algorithm; Townsend first ionization; continuity equations; corona discharge characteristics; discharge mechanism; electric field distribution; flux corrected transport; needle to plane electrodes; nitrogen gas transport coefficients; secondary electron emission; space charge; spatio-temporal charge distributions; two-dimensional fluid method; Computational modeling; Corona; Educational institutions; Electrodes; Electrons; Ionization; Needles; Nitrogen; Poisson equations; Space charge;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.970714
