Detail publikačního výsledku

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

JENIŠTA, J.; TAKANA, H.; NISHIYAMA, H.; BARTLOVÁ, M.; AUBRECHT, V.; KŘENEK, P.; SEMBER, V.; MAŠLÁNI, A.

Original Title

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

English Title

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

Type

WoS Article

Original Abstract

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.

English abstract

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.

Keywords

Hybrid-stabilized electric arc; Mass flow rate; Net emission coefficients; Partial characteristics; SIMPLER iteration procedure; LU-SGS algorithm

Key words in English

Hybrid-stabilized electric arc; Mass flow rate; Net emission coefficients; Partial characteristics; SIMPLER iteration procedure; LU-SGS algorithm

Authors

JENIŠTA, J.; TAKANA, H.; NISHIYAMA, H.; BARTLOVÁ, M.; AUBRECHT, V.; KŘENEK, P.; SEMBER, V.; MAŠLÁNI, A.

RIV year

2012

Released

01.09.2011

Publisher

ELSEVIER SCIENCE

ISBN

0010-4655

Periodical

COMPUTER PHYSICS COMMUNICATIONS

Volume

182

Number

9

State

Kingdom of the Netherlands

Pages from

1776

Pages to

1783

Pages count

8

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT73837,
  author="Jiří {Jeništa} and H. {Takana} and H. {Nishiyama} and Milada {Bartlová} and Vladimír {Aubrecht} and Petr {Křenek} and Vladimír {Sember} and Alan {Mašláni}",
  title="A comparative numerical study of hybrid-stabilized argon-water electric arc",
  journal="COMPUTER PHYSICS COMMUNICATIONS",
  year="2011",
  volume="182",
  number="9",
  pages="1776--1783",
  issn="0010-4655"
}