Year: 2001
Type: article
Abstract: We present a numerical model of stepped leader growth during dielectric breakdown process in homogenous media.The electrodes and the stepped leader were modelled as conductors surrounded by a homogenous dielectric medium.We took in account the observations of a stepped leader in atmosphere and used a quasi-static approach.To simulate the time space, we alternatingly added a streamer to the leader and solved the system for unknown charges with method of moments, using Galerkin approach.For different values of generalized dielectric temperature kT and initial electrical energy C 0 U 2 /2 the results of the model were interpreted as various kinds of discharges, like corona, cold discharge, and discharges with branched leaders.The results suggest the existence of a single parameter that determines the type of breakdown in the particular class of discharges.
DOI: 10.1541/jae.21.61
Authors: A. Berkopec, V. Valencic
Institutions: University of Ljubljana, Institute of Occupational Safety
Language: English
Subfield: Atmospheric Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W413616786