We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
SIMULATION OF ELECTRIC ARC WITH REFRACTORY CATHODE AND EVAPORATING ANODE.
- Authors
KRIKENT, I. V.; KRIVTSUN, I. V.; DEMCHENKO, V. F.
- Abstract
Equation of convective diffusion of ionized metal vapour in arc plasma, allowing for the difference in coefficients of diffusion of atoms, single- and double-charged metal ions, presence of thermodiffusion flows of metal particles, as well as ion drift in the electric field, was proposed to more precisely define the earlier developed complex model of the processes of energy, mass and charge transfer in the column and anode region of electric arc with refractory cathode and evaporating anode, running in inert gas. Based on the thus precised complex mathematical model, numerical analysis of the influence of diffusion-induced evaporation of anode material (Fe) on heat, gas-dynamic and electromagnetic characteristics of multicomponent plasma of the column and anode region of stationary electric arc with refractory cathode (W) at its running in inert gas (Ar) was performed. An essential influence of metal surface temperature distribution in the region of anode binding of the arc on distribution of temperature and electric current density in near-anode plasma, as well as on distributed and integral characteristics of its thermal impact on evaporating anode surface, is shown.
- Subjects
METAL vapors; ELECTRIC arc; ELECTRIC welding; CHARGE transfer; ELECTROMAGNETIC fields; NOBLE gases; ELECTRIC currents
- Publication
Paton Welding Journal, 2014, Issue 9, p17
- ISSN
0957-798X
- Publication type
Article
- DOI
10.15407/tpwj2014.09.02