Analytical models are developed for the average heat transfer rate in forced convection-cooled, slotted fin heat sinks. These models for the upper and lower bounds can be used to investigate the effects of slot size and placement on heat sink performance. Experimental measurements are performed for a variety of slot configurations over a range of Reynolds numbers, and these data are compared with the proposed analytical models. An approximate model is proposed that predicts the experimental results for the average heat transfer rate to within a 12% RMS difference.

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