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A Road Map for CFD Modelling of Forced Cooled Packages

[+] Author Affiliations
Emre Öztürk

ANOVA CAD-CAE-TEST

Ilker Tari

Middle East Technical University

Paper No. IMECE2006-14307, pp. 179-185; 7 pages
doi:10.1115/IMECE2006-14307
From:
  • ASME 2006 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Volume 3
  • Chicago, Illinois, USA, November 5 – 10, 2006
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4786-1 | eISBN: 0-7918-3790-4
  • Copyright © 2006 by ASME

abstract

In this study, Computational Fluid Dynamics, which has taken its position in the thermal design of electronic packages, was used in order to draw a CFD road map for forced cooling conjugate heat transfer analyses in heat generating electronic systems. The main sources of error in CFD analyses arise from inappropriate numerical models including turbulence models, radiation modeling and discretization schemes, insufficient grid resolution, and lack of convergence. A complete computer chassis model with heat sinks and fans inside was created and parametric analyses were performed to compare the effects of different turbulence models, discretization schemes, mesh resolutions, convergence criteria, and radiative heat transfer. Two commercially available CFD software packages were used, Icepak™ for pre-processing, Fluent™ for solution and post-processing. The road map was applied to three different heat sinks modeled into the full chassis. Numerical results were compared with the available experimental data and they were in good agreement.

Copyright © 2006 by ASME
Topics: Modeling , Roads

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