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 turbulence-energy contours.

Temperature field.

Average Nusselt Number:
 
 
Hot wall
Cold wall
Experiment [1]
64
65.3
Model LL
59.75
60.55
Model LL + Yap
57.49
56.56

Mean-Velocity, Mean-Temperature, 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:

  1. Tian, Y.S. and Karayiannis T.G., “Low Turbulence Natural Convection in an Air Filled Square Cavity, Part I: The Thermal and Fluid Flow Fields”, International Journal of Heat and Mass Transfer, Vol. 43, pp. 849-866, 2000.
  2. Tian, Y.S. and Karayiannis T.G., “Low Turbulence Natural Convection in an Air Filled Square Cavity, Part II: The Turbulence Quantities”, International Journal of Heat and Mass Transfer, Vol. 43, pp. 867-884, 2000.
Back to

Large-Eddy 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

F.S. Lien's home page