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Tian Junguo Deng Jing Li Yaojian Xu Yongxiang Sheng Hongzhi. Numerical simulation for a free-burning argon arc with MHD model[J]. Chinese Journal of Theoretical and Applied Mechanics, 2011, 43(1): 32-38. DOI: 10.6052/0459-1879-2011-1-lxxb2009-742
Citation: Tian Junguo Deng Jing Li Yaojian Xu Yongxiang Sheng Hongzhi. Numerical simulation for a free-burning argon arc with MHD model[J]. Chinese Journal of Theoretical and Applied Mechanics, 2011, 43(1): 32-38. DOI: 10.6052/0459-1879-2011-1-lxxb2009-742
shu

Numerical simulation for a free-burning argon arc with MHD model

  • Received Date: December 06, 2009
  • Revised Date: April 27, 2010
    Graphical Abstract
    • Abstract
  • In this work, the Magneto-Hydrodynamic (MHD) model basedon the magnetic vector potential description is used to simulate a DC argonfree-burning plasma arc. The temperature and velocity fields of the arc areobtained by solving the electromagnetic equations and hydrodynamic equationswith the coupled iterative computation. The simulation results that clearlyshow the phenomenon of high temperature cathode jet of plasma-arc arecompared with the other research results. The effect of the cathode sheathto the simulation results is analyzed specially in this paper. For the argonfree-burning arc, the characteristics of plasma arc flow and heat transferunder different arc current conditons have been obtained, which providessome useful knowledge for industrial applications of arc plasma.
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