Three-Dimensional Computations of Free-Burning Arcs and Their Surroundings


  • W. Lee Graduate School of Automotive Engineering, Gangneung-Wonju National University, Wonju
  • J. Lee School of Mechanical and Automotive Engineering, Gangneung-Wonju National University, Wonju



free-burning arc, thermal plasma, computational fluid dynamics, LTE model


This paper is concerned with developing a capability to model free-burning high-intensity argon arcs and enhancing the accuracy of numerical results according to three-dimensional calculations. It was found that the computed temperatures along the axis between the cathode tip and the anode surface show good agreement with two different measured data. Although the LTE model can reasonably predict the overall arc voltage for free-burning arcs, it fails to account accurately what happens at the regions near electrodes.


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