Numerical and Experimental Prediction of Transitional Characteristics of Flow and Heat Transfer in an Array of Heated Blocks

[+] Author and Article Information
Y. Asako, Y. Yamaguchi

Department of Mechanical Engineering, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan

M. Faghri

Department of Mechanical Engineering and Applied Mechanics, University of Rhode Island, Kingston, RI 02881

J. Electron. Packag 121(3), 202-208 (Sep 01, 1999) (7 pages) doi:10.1115/1.2792685 History: Received March 31, 1998; Revised May 21, 1999; Online November 05, 2007


Three-dimensional numerical analysis, for transitional characteristics of fluid flow and heat transfer in periodic fully developed region of an array of the heated square blocks deployed along one wall of the parallel plates duct, is carried out by using Lam-Bremhorst low-Reynolds-number two equation turbulence model. Computations were performed for Prandtl number of 0.7, in the Reynolds number range of 200 to 2000 and for two sets of geometric parameters characterizing the array. The predicted transitional Reynolds number is lower than the value for the parallel plate duct and it decreases with increasing the height above the module. Experiments were also performed for pressure drop measurements and for flow visualization and the results were compared with the numerical predictions.

Copyright © 1999 by The American Society of Mechanical Engineers
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