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ADDITIONAL TECHNICAL PAPERS

Oscillatory Flow in a Physical Model of a Thin Slab Casting Mould With a Bifurcated Submerged Entry Nozzle

[+] Author and Article Information
Nicholas J. Lawson

Department of Aerospace, Power and Sensors, Royal Military College of Science, Cranfield University, Shrivenham, Wiltshire. SN6 8LA, United Kingdome-mail: n.j.lawson@rmcs.cranfield.ac.uk

Malcolm R. Davidson

Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australiae-mail: m.davidson@unimelb.edu.au

J. Fluids Eng 124(2), 535-543 (May 28, 2002) (9 pages) doi:10.1115/1.1459077 History: Received April 30, 2001; Accepted November 07, 2001; Online May 28, 2002
Copyright © 2002 by ASME
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References

Figures

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Schematic of the flow field
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Schematic of the experimental rig
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Schematic showing experimental parameters
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Schematic of the LDA and flow visualization experi-mental setup
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u component time series at point C (casting rate 1.09 m/s, SEN submergence 120 mm)
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Power spectrum of horizontal velocity u at monitoring points in the cross-flow for a casting rate R=1.09 m/min and SEN submergence S=120 mm
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RMS of the horizontal velocity component (u) and the “cut-off” frequency of the oscillation at points A, B, and C versus casting rate and nozzle submergence. The cut-off frequency marks the maximum frequency of modes which together contain 90 percent of the fluctuating (horizontal) kinetic energy.
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Plots in the central plane (z=0) of the cross-flow region showing (a) mean velocity vectors and (b) a contour map of the RMS vertical velocity (m/s) when casting rate R=1.53 m/min and SEN submergence S=120 mm
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Mean vertical velocity (v) profile over the width of the cavity in the central plane (z=0) of the cross-flow region at various depths y when casting rate R=1.53 m/min and SEN submergence S=120 mm. The location of the SEN is marked in the center.
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Out-of-plane mean velocity w versus transverse coordinate z at different depths y when x=130 mm for casting rate R=1.53 m/min and SEN submergence S=120 mm
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Mean horizontal velocity u as a function of transverse coordinate z in horizontal planes at various depths y when casting rate R=1.53 m/min and SEN submergence S=120 mm. Results are shown for two values of x (+130 mm and −130 mm).
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Mean vertical velocity v as a function of transverse coordinate z in the vertical y-z plane (perpendicular to the broad face of the cavity) at x=−130 mm (solid symbols) and x=+130 mm (open symbols) when casting rate R=1.53 m/min and SEN submergence S=120 mm
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Full vector field of mean velocity in the central vertical plane z=0 when casting rate R=1.53 m/min and SEN submergence S=120 mm
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Mean and RMS vertical velocity profile in the central plane z=0 at various depths y in the main body of the cavity below the SEN when casting rate R=1.53 m/min and SEN submergence S=120 mm
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Flow visualization images of the jet at times 7.8 s apart with the jet outline marked for the base case (casting rate 1.53 m/min, SEN submergence 120 mm)

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