The Influence of Turbulence on Characteristics of a Hybrid-Stabilized Argon-Water Electric Arc

Jirí JENIŠTA; Hidemasa TAKANA; Hideya NISHIYAMA; Milada BARTLOVÁ; Vladimír AUBRECHT; Petr KRENEK

doi:10.1299/jtst.8.435

Jirí JENIŠTA, Hidemasa TAKANA, Hideya NISHIYAMA, Milada BARTLOVÁ, Vladimír AUBRECHT, Petr KRENEK

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Keywords: Hybrid-Stabilized Electric Arc, Partial Characteristics, Mass Flow Rate, Large-Eddy Simulation, the Smagorinsky Sub-Grid Scale Model

JOURNAL FREE ACCESS

2013 Volume 8 Issue 2 Pages 435-447

DOI https://doi.org/10.1299/jtst.8.435

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Abstract

The paper presents numerical simulations of the discharge and near outlet regions of the hybrid-stabilized argon-water electric arc. Calculations were carried out for the assumption of laminar and turbulent plasma flow models, respectively. Results of calculations for currents 300-600 A show that the influence of turbulence is weak and the maximum difference for all the monitored physical quantities is less than 10%. Comparison with available experiments exhibits good agreement.

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