Numerical Modeling of Mixing of Plasma Species in Argon–Water Arc Discharge for Low to Moderate Currents

0463536 - ÚFP 2017 RIV JP eng C - Conference Paper (international conference)
Jeništa, Jiří - Takana, H. - Uehara, S. - Nishiyama, H. - Murphy, A.B. - Bartlová, M. - Aubrecht, V.
Numerical Modeling of Mixing of Plasma Species in Argon–Water Arc Discharge for Low to Moderate Currents.
13th International Conference on Flow Dynamics (ICFD2016) - Proceedings. Sendai: Institute of Fluid Science, Tohoku University, 2016, s. 562-563. ISBN N. ISSN N.
[International Conference on Flow Dynamics (ICFD2016) /13./. Sendai (JP), 10.10.2016-12.10.2016]
R&D Projects: GA ČR(CZ) GA15-19444S
Institutional support: RVO:61389021
Keywords : arc discharge * combined diffusion coefficients * inhomogeneous mixing * mass fraction
Subject RIV: BL - Plasma and Gas Discharge Physics
http://www.ifs.tohoku.ac.jp/icfd2016/

The paper presents a numerical model of mixing of plasma species inside the discharge and in the near outlet regions of the hybrid–stabilized argon–water electric arc for low to moderate currents (150-400 A). Mixing of water and argon plasma species is considered in the model using the so called combined diffusion coefficients method. Diffusion processes due to pressure, temperature and concentration gradients and due to an external electric field are taken into account. Results of calculation indicate inhomogeneous mixing of argon and oxygen–hydrogen species for all the studied conditions.
Permanent Link: http://hdl.handle.net/11104/0262716