Unipolar arc model

Author

Gielen, Herman J G ; Schram, Daniel C.

Author_Institution

Dept. of Phys., Eindhoven Univ. of Technol., Netherlands

Volume

18

Issue

1

fYear

1990

fDate

2/1/1990 12:00:00 AM

Firstpage

127

Lastpage

133

Abstract

A three-dimensional description of an axisymmetric unipolar arc discharge is given. Both sheath and plasma ball effects are taken into account. The analysis is based on the simultaneous solution of Ohm´s law, Maxwell equations, and the boundary conditions for the electric potential at the Plasma-sheath interface. These boundary conditions are dictated by the sheath effects. The potential distribution, current distribution, and magnetic fields in the plasma have been determined for a given electron density profile. These calculations show that the unipolar arc arises as a natural consequence of the pressure force

Keywords

arcs (electric); plasma sheaths; Maxwell equations; Ohm´s law; axisymmetric unipolar arc discharge; boundary conditions; current distribution; electric potential; electron density profile; magnetic fields; model; plasma ball effects; potential distribution; pressure force; sheath; three-dimensional description; Arc discharges; Boundary conditions; Current distribution; Electric potential; Electrons; Magnetic analysis; Magnetic fields; Maxwell equations; Plasma density; Plasma sheaths;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.45515

Filename

45515