TECHNICAL PAPERS: Heat Transfer Enhancement

Experimental Study of Surface-Mounted Obstacle Effects on Heat Transfer Enhancement by Using Transient Liquid Crystal Thermograph

[+] Author and Article Information
W. M. Yan, R. C. Hsieh

Department of Mechanical Engineering, Huafan University, Shih-Ting, Taipei, Taiwan 22305, Republic of China

C. Y. Soong

Department of Aeronautical Engineering, Feng Chia University, Seatwen, Taichung, Taiwan 40745, Republic of Chinae-mail: cysoong@fcu.edu.tw

J. Heat Transfer 124(4), 762-769 (Jul 16, 2002) (8 pages) doi:10.1115/1.1459729 History: Received March 19, 2001; Revised July 26, 2001; Online July 16, 2002
Copyright © 2002 by ASME
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Obstacle-plate model assembly
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Calibration test model: (a) calibration test model plate; and (b) heating element.
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Comparison of the present measurements on a flat plate with the previous theory
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Effects of obstacle height and cross-section geometry on base plate heat transfer enhancement at Re=3500: (a) circular; (b) square; and (c) diamond obstacles.
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Reynolds number effects on heat transfer enhancement of base plate with a circular obstacle of H=d: (a) Re=4200; (b) Re=3500; and (c) Re=2100.
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Effects of obstacle spacing on the heat transfer enhancement of base plane with circular obstacles
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Effects of Obstacle height on the heat transfer enhancement of base plate with circular obstacles
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Base plate heat transfer enhancement with tandem array of three obstacles of H/d=1 and S/d=2 at Re=3500




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