MODELING OF A DIRECT-CURRENT ARC IN
A PLASMATRON WITH STEP ELECTRODES

A. F. Bublievskii , O. I. Yas'ko , and
E. I. Yurinok

UDC 537.523.5

By methods of physical modeling using a linear ridge 
regression it is established that in direct-current plasmatrons with 
step electrodes the volt-ampere characteristic of the arc is formed 
by heat-transfer processes, while gasdynamic factors have a slight 
effect. Generalized VACs of unilateral- and bilateral-emission plasmatrons 
in blowing the arc with air and hydrogen are refined.

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