Počet záznamů: 1

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

  1. 1.
    0360384 - UFP-V 2012 RIV NL eng J - Článek v odborném periodiku
    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.
    [Computer Physics Communications Special Edition for Conference on Computational Physics. Trondheim, 23.06.2010-26.06.2010]
    Grant CEP: GA ČR GA202/08/1084
    Výzkumný záměr: CEZ:AV0Z20430508
    Klíčová slova: hybrid-stabilized electric arc * mass flow rate * net emission coefficients * partial characteristics * SIMPLER iteration procedure * LU-SGS algorithm
    Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
    Impakt faktor: 3.268, rok: 2011

    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.
    Trvalý link: http://hdl.handle.net/11104/0197953