On the conditions of applicability of commonly used modification of a fluid model for glow discharge

Kudryavtsev A., RAFATOV İ., Yuan C.

51st IEEE International Conference on Plasma Science, ICOPS 2024 and 4th Asia-Pacific Conference on Plasma and Terahertz Science, APCOPTS 2024, Beijing, China, 16 - 20 June 2024 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/icops58192.2024.10627335
  • City: Beijing
  • Country: China
  • Middle East Technical University Affiliated: Yes

Abstract

The reliability of a numerical model is determined by its the least accurately known component. Such a component in fluid models of glow discharges is the description of electrons, which are far from equilibrium. This is especially the case in the near-cathode plasma of the negative glow (NG) with a weak (and even reverse) electric field, which is formed by the “external” ionizing factor, namely, an electron beam emitted from the cathode fall.