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

Authors

  • 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

DOI:

https://doi.org/10.14311/ppt.2016.3.151

Keywords:

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

Abstract

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.

References

M. T. C. Fang, J. L. Zhang, and J. D. Yan. On the use of langmuir probes for the diagnosis of atmospheric thermal plasmas. IEEE Trans. on Plasma Sci., 33(4):1431–1441, 2005.

J. J. Gleizes, J. Gonzalez, and J. Freton. Thermal plasmas modeling. J. Phys. D: Appl. Phys, 38(9):R153–R183, 2005.

G. N. Haddad and A. J. D. Farmer. Temperature determinations in a free-burning arc: I. experimental techniques and results in argon. J. Phys. D: Appl. Phys., 17(6):1189–1196, 1984.

M. Schnick, U. Fussel, M. Hertel, S. Rose, M. Haessler, A. Spille-Kohoff, and A. B. Murphy. Numerical investigations of the influence of metal vapour in gma welding. Welding in the World, 55(11):114–120, 2011.

S. V. Patankar. Numerical Heat Transfer and Fluid Flow. McGraw-Hill, New Yorkt, 1980.

W. H. Lee, Y. J. Kim, and J. C. Lee. Temperature prediction in a free-burning arc and electrodes for nanostructured materials and systems. J. Nanosci. Nanotechnol, 15(11):8446–8450, 2015.

A. B. Murphy. A comparison of treatments of diffusion in thermal plasmas. J. Phys. D: Appl. Phys., 29:1922, 1996.

P. Kovitya and J. J. Lowke. Two-dimensional analysis of free-burning arcs in argon. J. Phys. D: Appl. Phys., 18:53, 1985.

J Menart, J. Heberlein, and E. Pfender. Theoretical radiative emission results for argon/copper thermal plasmas. Plasma Chem. Plasma Process, 16:245s, 1995.

A. Spille-Kohoff. Arc welding: From process simulation to structural mechanics, Part 1: Process simulation with ANSYS CFX. 4th European Automotive Simulation Conference, Munich, Germany, 6-7 July, 2009.

Downloads

Published

2016-02-14

Issue

Section

Articles