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

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 betwe...

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Bibliographic Details
Published inComputer physics communications Vol. 182; no. 9; pp. 1776 - 1783
Main Authors Jeništa, Jiří, Takana, Hidemasa, Nishiyama, Hideya, Bartlová, Milada, Aubrecht, Vladimír, Křenek, Petr, Sember, Viktor, Mašláni, Alan
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2011
Subjects
Hybrid-stabilized electric arc
LU-SGS algorithm
Mass flow rate
Net emission coefficients
Partial characteristics
SIMPLER iteration procedure
Net emission coefficients
LU-SGS algorithm
SIMPLER iteration procedure
Mass flow rate
Hybrid-stabilized electric arc
Partial characteristics
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Summary: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.
ISSN:0010-4655
1879-2944
DOI:10.1016/j.cpc.2011.01.006