Hostname: page-component-848d4c4894-4rdrl Total loading time: 0 Render date: 2024-06-20T12:42:00.914Z Has data issue: false hasContentIssue false

The Mathematical Modelling of Transport Phenomena in Non-Transferred Plasma Systems: Accomplishments and Unresolved Problems

Published online by Cambridge University Press:  25 February 2011

A. H. Dilawari
Affiliation:
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
J. Szekely
Affiliation:
Associate Professor, on leave of absence from Institute of Chemical Engineering and Technology, University of the Punjab, Lahore -1, PAKISTAN
Get access

Abstract

An overview is presented of transport phenomena in non-transferred plasma arc systems. It has been shown that while the modelling of these systems involves the standard application of computational fluid mechanics techniques, numerous pitfalls may be encountered in practice. A detailed discussion of these is presented, with emphasis on the torch inlet conditions, the effect of swirl, the temperature dependence of the system properties and the laminar-turbulent transition in the system. A critical comparison is presented with experimental measurements, and the necessary future work is also outlined.

Type
Research Article
Copyright
Copyright © Materials Research Society 1987

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Akashi, K., Ohno, S., Ishizuka, R. and Yoshida, T., Proceedings of the 3rd Int. Symposium on Plasma Chemistry 3, Paper S.4.6 (1977).Google Scholar
2. Bourdin, E. and Fauchais, P., Proceedings of the 3rd Int. Symposium on Plasma Chemistry 3, Paper G.1 (1977).Google Scholar
3. Rykalin, N.N., Pure Appl. Chem. 52, 1801 (1980).Google Scholar
4. Fauchais, P. and Baronnet, J.M., Pure Appl. Chem. 52, 1699 (1980).Google Scholar
5. Alcock, C.B., Pure Appl. Chem. 52, 1017 (1980).Google Scholar
6. Gauvin, W.H., Kubanek, G.R. and Irons, G.A., J. Met. 33(1), 42 (1981).Google Scholar
7. Maske, K.U. and More, J.J., High Temp. Technol. 1(1), 51 (1982).Google Scholar
8. Chang, C.W. and Szekely, J., J. of Metals 34(2), 57 (1982).Google Scholar
9. Kong, P.C., Suzuki, M., Young, R. and Pfender, E., Plasma Chemistry and Plasma Processing 3(1), 115 (1983).Google Scholar
10. Donaldson, C.P. and Gray, K.E., AIAA J., 4, 2017 (1966).Google Scholar
11. Schaeffer, J.F., AIAA J. 16, 1068 (1978).Google Scholar
12. McKelliget, J., Szekely, J., Vardelle, M. and Fauchais, P., Plasma Chemistry and Plasma Processing 2(3), 317 (1982).Google Scholar
13. Correa, S.M., Proceedings of 6th Int. Symposium on Plasma Chemistry 1, Paper No. A.3.1, 77 (1983).Google Scholar
14. Varacalle, D.J. Jr, Richardson, L.S. and Mcilwain, M.E., Mat. Res. Soc. Symp. Proc. 38, 45 (1985).Google Scholar
15. El-Kaddah, N., McKelliget, J. and Szekely, J., Met. Trans. B, 15B, 59 (1984).Google Scholar
16. Liu, C.H., Ph. D. Thesis, Department of Mechanical Engineering, University of Minnesota, Minneapolis (1977).Google Scholar
17. Yos, J.M., Technical Memorandum RAD-TM-63–7, Research and Advanced Development Division, AVCO Corporation, Wilmington, Mass. (1963).Google Scholar
18. Svehla, R.A., Estimated Viscosities and Conductivities of Gases at High Temperature, NASA TR-132 (1962).Google Scholar
19. Launder, B.E. and Spalding, D.B., Comp. Methods in Appl. Mech. and Engrg. 3, 269 (1974).Google Scholar
20. Dilawari, A.H. and Szekely, J. (Part I), Int. J. Heat and Mass Transfer, in press (1987).Google Scholar
21. Dilawari, A.H. and Szekely, J., Plasma Chemistry and Plasma Processing, in press (1987).Google Scholar
22. Dilawari, A.H., Szekely, J., Fauchais, P. and Vardelle, A. (Part II), to be submitted to Int. J. Heat and Mass Transfer (1987).Google Scholar
23. Pun, W.M. and Spalding, D.B., Rept. No. HTS/76/2, Imperial College of Science and Technology, London (1976).Google Scholar
24. Patankar, S.V. and Spalding, D.B., Int. J. Heat and Mass Transfer 16, 1787 (1972).Google Scholar
25. Vardelle, M., Vardelle, A., Fauchais, P. and Boulos, M.I., AIChE J. 29, 236 (1983).Google Scholar
26. Shaw, C., private communication, Idaho National Engineering Laboratory (1987).Google Scholar
27. Dilawari, A.H. and Szekely, J., submitted to Met. Trans. B (1987).Google Scholar