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TECHNICAL PAPERS

Local Swirl Chamber Heat Transfer and Flow Structure at Different Reynolds Numbers

[+] Author and Article Information
C. R. Hedlund, P. M. Ligrani

Convective Heat Transfer Laboratory, Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112

J. Turbomach 122(2), 375-385 (Feb 01, 1999) (11 pages) doi:10.1115/1.555458 History: Received February 01, 1999
Copyright © 2000 by ASME
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References

Figures

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Swirl chamber used for heat transfer measurements: (a) schematic diagram; (b) coordinate system
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Visualizations of flow behavior downstream of inlet 2, at 10.0≤x/r0≤11.2 and ψ=130 deg
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Schematic of swirl chamber geometry showing flow visualization location at 10.0≤x/r0≤11.2 and ψ=130 deg
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Distribution of static pressure Pt−Pa (Pa) at ψ=90 deg for Re of: (a) 18,000, (b) 12,000, and (c) 6000; spacings between adjacent contour lines: (a) 0.2 Pa, (b) 0.1 Pa, and (c) 0.1 Pa
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Distributions of total pressure Pt−Pa (Pa) at ψ=90 deg for Re of (a) 18,000, (b) 12,000, and (c) 6000; spacings between adjacent contour lines: (a) 0.2 Pa, (b) 0.1 Pa, and (c) 0.1 Pa
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Distribution of circumferential component of velocity uψ (m/s) at ψ=90 deg for Re of: (a) 18,000, (b) 12,000, and (c) 6000; spacings between adjacent contour lines: (a) 0.2 m/s, (b) 0.1 m/s, and (c) 0.2 m/s
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Nondimensional radially averaged profiles of: (a) static pressure, (b) total pressure, and (c) circumferential velocity, for ψ=90 deg and Re of 6000, 12,000, and 18,000. Data are averaged over 0.0≤r/r0≤1.0.
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Nondimensional axially averaged profiles of: (a) static pressure, (b) total pressure, and (c) circumferential velocity, for ψ=90 deg and Re of 6000, 12,000, and 18,000. Solid data points represent data averaged over 0.15≤r/r0≤0.65, and open data points represent data averaged over 7.15≤x/r0≤8.15.
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Local Nusselt number distribution over the entire interior surface of swirl chamber for Re of 6100 and Ti/Tw=0.95
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Local Nusselt number distributions near inlet 1 for Re of 6100, 12,500, and 19,200
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Local Nusselt number distributions near inlet 2 for Re of 6100, 12,500, and 19,200
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Experimental arrangement used to obtain the data presented in Figs. 10 and 11
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Local Nusselt numbers at fixed circumferential locations as they vary with normalized axial distance for Re of 6100, 12,150, and 19,200: (a) ψ=30 deg, (b) ψ=90 deg, and (c) ψ=150 deg
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Local Nusselt numbers at fixed axial locations as they vary with circumferential angle for Re of 6100, 12,150, and 19,200: (a) x/r0=0.5 near inlet 1, and (b) x/r0=7.5 near inlet 2
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Globally averaged Nusselt numbers, averaged over 0<x/r0<15 and ψ=0–360 deg

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