Effect of Component Layout and Geometry on the Flow Distribution in Electronics Circuit Packs

[+] Author and Article Information
K. Azar, E. T. Russell

AT&T Bell Laboratories, N. Andover, MA 01845

J. Electron. Packag 113(1), 50-57 (Mar 01, 1991) (8 pages) doi:10.1115/1.2905366 History: Received January 01, 1990; Revised January 18, 1991; Online April 28, 2008


An experimental investigation was conducted to study the impact of component layout and geometry on flow distribution on a circuit pack. The experiment was conducted in a water tunnel using aluminum blocks to simulate various electronic components. The experiments were conducted for laminar and onset of transition Reynolds numbers. Diluted ink was used as the flow visualization vehicle. The study looked at flow over single component, multiple component, and fully loaded circuit packs. The study drew a number of conclusions including the flows were highly three dimensional, and location and orientation of components with large aspect ratio will significantly affect circuit pack flow distribution.

Copyright © 1991 by The American Society of Mechanical Engineers
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