Predicting Cooling of Electronic Packaging Systems Using Computational Fluid Dynamics
by K.J. Hsieh and F.S. Lien
Department of Mechanical Engineering, University of Waterloo
sponsored by MMO/Nortel under MMO Project #DE708
Stage 3: Modeling Turbulent Natural Convective Heat Transfer in a Square Cavity at Low Turbulence Level
Streaklines and turbulenceenergy contours.
Temperature field.






Experiment [1]



Model LL



Model LL + Yap



MeanVelocity, MeanTemperature, Turbulence Intensity and Local Nusselt Number
Comparison between experimental and numerical results: (a) mean velocity; (b) turbulence intensity; (c) mean temperature; (d) local Nusselt number. (o) Experimental data [1,2]; (—) model LL with Yap; (– –) model LL without Yap.
(a)(b)
(c)(d)
References:
LargeEddy Simulation Results (F.E. Ham, 2002)
Stage 1: Modeling Turbulent Forced Convective Heat Transfer in a Channel with Periodic Ribs
Stage 2: Modeling Turbulent Natural Convective Heat Transfer in a Tall Cavity