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Numerical modeling of hybrid stabilized electric arc with uniform mixing of gases
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SYSNO ASEP 0101153 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Numerical modeling of hybrid stabilized electric arc with uniform mixing of gases Title Numerické modelování obloukového výboje s hybridní stabilizací při homogenním mísení plynů Author(s) Jeništa, Jiří (UFP-V) RID, ORCID Source Title IEEE Transactions on Plasma Science. - : Institute of Electrical and Electronics Engineers - ISSN 0093-3813
Roč. 32, č. 2 (2004), s. 464-472Number of pages 9 s. Action International Conference on Plasma Science/ICOPS 2003./ Event date 02.06.2003-05.06.2003 VEvent location Jeju Country KR - Korea, Republic of Event type WRD Language eng - English Country US - United States Keywords arc, mass flow rate, hybrid (water-vortex), stabilization, hybrid torch Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects GA202/02/1027 GA ČR - Czech Science Foundation (CSF) Annotation The paper is concerned with numerical modeling of an electric arc in the plasma torch with combined stabilization of arc by gas and water vortex. The axisymmetric model includes the arc discharge area between the outlet nozzle for argon and the outlet nozzle of the hybrid plasma torch. The aim of numerical simulation is to calculate thermal, electrical, fluid-dynamic characteristics and power losses of such arc for the range of currents 150-500 A as well as to demonstrate differences between hybrid torch and the torch with water-vortex stabilization. The calculated velocities and temperature and electron concentration profiles exhibit good agreement with experiments. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2005
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