Crossflow Characteristics of an Oscillating Jet in a Thin Slab Casting Mould

[+] Author and Article Information
Nicholas J. Lawson, Malcolm R. Davidson

G. K. Williams Cooperative Research Centre for Extractive Metallurgy, Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3052, Australia

J. Fluids Eng 121(3), 588-595 (Sep 01, 1999) (8 pages) doi:10.1115/1.2823509 History: Received June 09, 1998; Revised June 09, 1999; Online December 04, 2007


The application of LDA to a transient 1/3 scale (500 mm wide) water model of a mould, typical of steel thin slab casting, is presented. The characteristics of a crossflow, associated with the oscillating jet emerging from a submerged nozzle (internal diameter 33 mm), were analyzed for a range of casting rates (0–2 m/min), nozzle submergences (20–120 mm) and nozzle-mould wall gap widths (0–21 mm). The frequency of oscillation was found to be primarily dependent on the casting rate of the system, independent of nozzle submergence or gap width, whereas the RMS crossflow velocity depended on all three parameters. Additional crossflow was also observed past the jet below the nozzle exit and this allowed the jet to oscillate even with zero gap width.

Copyright © 1999 by The American Society of Mechanical Engineers
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