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TECHNICAL PAPERS: Forced Convection

Flow and Heat Transfer Behavior for a Vortex-Enhanced Interrupted Fin

[+] Author and Article Information
M. L. Smotrys, H. Ge, A. M. Jacobi, J. C. Dutton

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 1206 West Green St., Urbana, IL 61801

J. Heat Transfer 125(5), 788-794 (Sep 23, 2003) (7 pages) doi:10.1115/1.1597616 History: Received July 12, 2002; Revised April 09, 2003; Online September 23, 2003
Copyright © 2003 by ASME
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References

Figures

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Geometry and nomenclature for the (a) offset-strip fin array and (b) Two-VG enhanced fins. S=L=b=c=2.54 cm,t=3.175 mm, Λ=2, and β=25 deg.
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Placement of cast fins for naphthalene sublimation experiments
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Experimental setup for side-view PIV measurements
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X* locations for end-view PIV images (X*=X/L)
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Seven-fin average Sherwood number enhancement
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Flow visualization of the baseline array for the various flow regimes: (a) Trailing fins at Re=1280; (b) Re=1330; and (c) Re=1480.
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Flow visualizations for the Two-VG array for the various flow regimes: (a) Trailing fins at Re=1280; (b) Trailing fins at Re=1365; and (c) Re=1430.
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Instantaneous vector field for baseline array at Re=1050, downstream. The vector-field mean U-component velocity has been subtracted from each vector to show shear layer instabilities.
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Instantaneous velocity magnitude for (a) baseline array and (b) Two-VG array at Re=1330, fins 5 and 6
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Two-VG array instantaneous velocity magnitude for (a) Re=1330 and (b) Re=1365 at X*=8

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