Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/94194

Title

Computational fluid dynamics modeling of supersonic coherent jets for electric arc furnace steelmaking process

Author(s)

Alam, Morshed;  Naser, Jamal;  Brooks, Geoffrey;  Fontana, Andrea

Abstract

Supersonic coherent gas jets are now used widely in electric arc furnace steelmaking and many other industrial applications to increase the gas-liquid mixing, reaction rates, and energy efficiency of the process. However, there has been limited research on the basic physics of supersonic coherent jets. In the present study, computational fluid dynamics (CFD) simulation of the supersonic jet with and without a shrouding flame at room ambient temperature was carried out and validated against experimental data. The numerical results show that the potential core length of the supersonic oxygen and nitrogen jet with shrouding flame is more than four times and three times longer, respectively, than that without flame shrouding, which is in good agreement with the experimental data. The spreading rate of the supersonic jet decreased dramatically with the use of the shrouding flame compared with a conventional supersonic jet. The present CFD model was used to investigate the characteristics of the supersonic coherent oxygen jet at steelmaking conditions of around 1700 K (1427 °C). The potential core length of the supersonic coherent oxygen jet at steelmaking conditions was 1.4 times longer than that at room ambient temperature.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences

Source

Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Vol. 41, no. 6 (Dec 2010), pp. 1354-1367

Publication year

2010

FOR Code(s)

0904 Chemical Engineering;  0914 Resources Engineering and Extractive Metallurgy

Keyword(s)

CFD;  Computational fluid dynamics;  Electric arc furnace steelmaking;  Supersonic jets

Publisher

Springer

ISSN

1073-5615

Publisher URL

http://dx.doi.org/10.1007/s11663-010-9436-7

Copyright

Copyright © The Minerals, Metals & Materials Society and ASM International 2010.

Peer reviewed