Publication: A multi-species DC stationary model for negative corona discharge in oxygen; point-plane configuration

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Title	A multi-species DC stationary model for negative corona discharge in oxygen; point-plane configuration
Authors/Editors*	J. Zhanga and K. Adamiak
Where published*	Journal of Electrostatics
How published*	Journal
Year*	2007
Volume	65
Number
Pages	459-464
Publisher
Keywords	Negative corona discharge; Three-species model; Ionic reactions in oxygen; Boundary element method; Finite element method; Method of characteristics
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Abstract	This paper analyzes the steady-state model of negative corona discharge in pure oxygen at room temperature and under atmospheric pressure assuming the point-plane geometry. Three species of charge carriers: electrons, negative oxygen ions View the source and positive oxygen ions View the source ions, are assumed. Five different ionic reactions for the corona discharge are studied, including electron impact ionization, three-body attachment of electrons to oxygen molecules, three-body recombination of electrons and positive oxygen ions, three-body recombination of negative and positive oxygen ions, and two-body recombination of negative and positive oxygen ions. The simulation results show the electron, negative and positive oxygen ion densities along the axial direction, lines of equal charge density for these three species in the air gap, and electric field distribution along the axis of symmetry.