A comparative numerical study of hybrid-stabilized argon–water electric arc

0360384 - ÚFP 2012 RIV NL eng J - Journal Article
Jeništa, Jiří - Takana, H. - Nishiyama, H. - Bartlová, M. - Aubrecht, V. - Křenek, Petr - Sember, Viktor - Mašláni, Alan
A comparative numerical study of hybrid-stabilized argon–water electric arc.
Computer Physics Communications. Roč. 182, č. 9 (2011), s. 1776-1783. ISSN 0010-4655. E-ISSN 1879-2944.
[Computer Physics Communications Special Edition for Conference on Computational Physics. Trondheim, 23.06.2010-26.06.2010]
R&D Projects: GA ČR GA202/08/1084
Institutional research plan: CEZ:AV0Z20430508
Keywords : hybrid-stabilized electric arc * mass flow rate * net emission coefficients * partial characteristics * SIMPLER iteration procedure * LU-SGS algorithm
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 3.268, year: 2011
http://www.sciencedirect.com/science/article/pii/S0010465511000269

The paper presents numerical simulations of the discharge and the near-outlet regions of the hybrid-stabilized argon–water electric arc. Two different numerical methods for solving the set of conservative equations for the continuity, momentum and energy have been applied. The major difference between the results using the two methods occurs in the temperature distribution in arc fringes within the discharge chamber. This fact influences the potential drop, overpressure, reabsorption of radiation and arc efficiency. It is shown that the radial profiles of temperature at the exit nozzle are less influenced by different temperature distribution within the discharge chamber. Comparison with chosen experimental temperature profiles shows very good agreement.
Permanent Link: http://hdl.handle.net/11104/0197953