Abstract
The flow and heat transfer characteristics of two analogous heat sinks were obtained from laboratory experiments and compared to each other and to numerical simulations. One contained continuousstraight fins, and the other inline strip fins, both cooled by forced airflow parallel to their base. The averageairflow velocity in the interfin channels ranged from 4 to 20 m/s, corresponding to Reynolds numbers from810 to 3,800. The measurements indicated that despite its smaller heat exchange area, the strip fins heat sinkconvective coefficient was larger enough to obtain a thermal resistance smaller than that of the continuousfins. Numerical simulations were performed to compare their results with the experiments. Two distinct fintreatments were used: one considered fins with no thickness, isothermal with the fins base temperature. The other considered the fins thickness and perfect thermal contact with the heat sink base. The Nusselt number simulation results for the continuous fins agreed within 3% with the measurements, but larger deviations were observed for the strip fins heat sink.
Reference60 articles.
1. Siva P Gurrum, Shivesh K Suman, Yogendra K Joshi, and Andrei G Fedorov. Thermal issues in next-generation integrated
2. circuits. IEEE Transactions on device and materials reliability, 4(4):709–714, 2004.
3. Hamdi E Ahmed, BH Salman, A Sh Kherbeet, and MI Ahmed. Optimization of thermal design of heat sinks:
4. A review. International Journal of Heat and Mass Transfer, 118:129–153, 2018.
5. Ziqiang He, Yunfei Yan, and Zhien Zhang. Thermal management and temperature uniformity enhancement of electronic devices by micro heat sinks: A review. Energy, 216:119223, 2021.
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