2015/10/26 by Pedro Almeida, P. G. C. Almeida, Almeida, P. G. C. +4
Engineering · Materials Science · Physics and Astronomy · #Aerosol Filtration and Electrostatic Precipitation #FOS: Physical sciences #High voltage insulation and dielectric phenomena #Lightning and Electromagnetic Phenomena #Plasma Physics (physics.plasm-ph) #physics.plasm-ph
paper · pdf · doi:10.48550/arxiv.1510.07530
openalex publication_date 2015/10/26 · arxiv created 2015/10/27 · arxiv updated 2015/10/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Self-organized patterns of cathode spots in glow discharges are computed in the cathode boundary layer geometry, which is the one employed in most of the experiments reported in the literature. The model comprises conservation and transport equations of electrons and a single ion species, written in the drift-diffusion and local-field approximations, and Poisson's equation. Multiple solutions existing for the same value of the discharge current and describing modes with different configurations of cathode spots are computed by means of a stationary solver. The computed solutions are compared to their counterparts for plane-parallel electrodes, and experiments. All of the computed spot patterns have been observed in the experiment.