Is a CFD Model Accurate in Predicting Temperature of a Computer Chip in a Duct?

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SUMMARY

The discussion centers on the accuracy of a Computational Fluid Dynamics (CFD) model in predicting the temperature of a computer chip within a duct. The model features a chip measuring 0.06 x 0.05 x 0.005 m in a rectangular duct of dimensions 0.3 x 0.1 x 0.02 m, with a flow velocity of 2.5 m/s. The maximum temperature recorded for the laminar flow case is 440 K, while the turbulent case shows a maximum of 395 K, with both cases exhibiting an average temperature of approximately 310 K. The results indicate that the turbulent boundary layer enhances mixing and heat transfer, leading to lower maximum temperatures than initially expected.

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engineer23
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I am running a CFD model with a computer chip measuring .06 x .05 x .005 m immersed in a rectangular duct measuring .3 x .1 x .02 m. The flow has velocity of about 2.5 m/s. The maximum temp. for the laminar case is about 440 K, while the max temp. for the turbulent case is 395 K. Does this sound right? I would have guessed the turbulent case would have a higher temp.
Both cases have about the same average temperature (~310 K).
 
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turbulent boundary layer has enhanced mixing, & hence enhanced heat transfer coefficient.

Take a look at the plot
 

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