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TECHNICAL PAPERS: Forced Convection

Heat Transfer in a Radially Rotating Four-Pass Serpentine Channel With Staggered Half-V Rib Turbulators

[+] Author and Article Information
G. J. Hwang, S. C. Tzeng, C. P. Mao

Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan 30043, Republic of China

C. Y. Soong

Department of Aeronautical Engineering, Chung Cheng Institute of Technology, Tahsi, Taoyuan, Taiwan 33509, Republic of China

J. Heat Transfer 123(1), 39-50 (Jul 21, 2000) (12 pages) doi:10.1115/1.1338130 History: Received March 20, 1999; Revised July 21, 2000
Copyright © 2001 by ASME
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References

Figures

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Schematic diagram of experimental apparatus
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Heat transfer test section of the four-pass channel model with staggered half-V ribs
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Local distribution of wall and fluid bulk temperature at Re=20,000 and Ω=0 (the operating pressure is 5 atm)
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Reynolds number effects on the local Nusselt numbers in both smooth channel and ribbed channel at Ω=0 (the operating pressure is 5 atm)
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Rib effects on the local heat transfer at Re=20,000 and Ω=0 (the operating pressure is 5 atm)
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Heat transfer ratios Nur/Nus at Re=20,000 in rotating channel model A with Ro=0.042, 0.127, and 0.210 (the operating pressure is 5 atm)
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Local heat transfer rates at Re=20,000 on the leading wall, trailing wall, and two side-walls of rotating channel model A (the operating pressure is 1 atm)
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Heat transfer performance of pressurized (5 atm) and atmospheric (1 atm) airflows in rotating ribbed channel Model A
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Comparison of local Nusselt number ratios in smooth channel, ribbed channels Model A and Model B at Re=20,000 and Ro=0.2 (the operating pressure is 5 atm)
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Effect of rotation number on the local Nusselt number ratio at Re=40,000 for Model A (the operating pressure is 5 atm)
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Local heat transfer performance at Re=20,000 in both ribbed channels A and B with variation of rotation number on the selected cross section of flow passages (the operating pressure is 5 atm)
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The centrifugal buoyancy effects on the mean heat transfer rate at Re=20,000 in each passage of ribbed channel A (the operating pressure is 5 atm)
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The correlation of heat transfer data for the four passages of serpentine channels with staggered half-V rib turbulators: (a) leading wall; (b) trailing wall (the operating pressure is 5 atm)

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