A Zonal Decomposition Methodology for Detailed Temperature Field Evaluation

[+] Author and Article Information
Cha-Hsiang Tan, Michael Pecht

CALCE Center for Electronic Packaging, University of Maryland, College Park, MD 20742

J. Electron. Packag 112(3), 260-266 (Sep 01, 1990) (7 pages) doi:10.1115/1.2904376 History: Received December 29, 1989; Revised June 18, 1990; Online April 28, 2008


A zonal decomposition technique is developed for temperature field and flux determination at both aligned and nonaligned grid interface boundaries. The method facilitates heat transfer problems commonly encountered in electronics including PWBs with multiple irregular boundaries in which numerical generation of boundary-fitted coordinates is required. To demonstrate the applicability and performance of the method, a 2-D heat conduction problem in Cartesian coordinates, a 2-D heat conduction problem in curvilinear coordinates, and a 3-D heat conduction problem in curvilinear coordinates are solved. Comparisons between numerical and analytical results are shown to be in excellent agreement.

Copyright © 1990 by The American Society of Mechanical Engineers
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