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工程设计学报
Chinese Journal of Engineering Design  2019, Vol. 26 Issue (4): 477-483    DOI: 10.3785/j.issn.1006-754X.2019.04.014
General Parts Design     
Design and heat transfer performance analysis of leaf vein-shaped microchannel heat sink
TAN Hui1, ZONG Kuan1, XIONG Chang-wu1,2, WENG Xia2, DU Ping-an1
1.School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
2.No.10 Research Institute, China Electronics Technology Group Corporation, Chengdu 610036, China
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Abstract  In order to improve the temperature uniformity of phased array antenna with multiple sources, based on the excellent mass transfer characteristic of the plant leaf veins, a leaf vein-shaped microchannel heat sink for phased array antenna with multiple sources was proposed. Firstly, the temperature distribution of heat sources in heat sink was displayed through the simulation analysis of flow and heat transfer performance of the leaf vein-shaped microchannel heat sink. Then, the structure of leaf vein-shaped microchannel was optimized by minimizing the standard deviation of heat source temperature, and an asymmetry leaf vein-shaped microchannel topology structure was achieved. Lastly, the test piece of aluminum-based microchannel heat sink was made by metal 3D printing and its heat transfer performance was tested. The numerical simulation results indicated that compared with the traditional parallel microchannel heat sink, the leaf vein-shaped microchannel heat sink not only enhanced heat transfer, but also made the heat source temperature more uniform and pressure loss smaller. The experimental results verified the excellent heat transfer performance of leaf vein-shaped microchannel heat sink. The research conclusion can provide basis for the heat sink design of phased array antenna with multiple sources.

Received: 17 April 2019      Published: 28 August 2019
CLC:  TB 131  
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Cite this article:

TAN Hui, ZONG Kuan, XIONG Chang-wu, WENG Xia, DU Ping-an. Design and heat transfer performance analysis of leaf vein-shaped microchannel heat sink. Chinese Journal of Engineering Design, 2019, 26(4): 477-483.

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https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2019.04.014     OR     https://www.zjujournals.com/gcsjxb/Y2019/V26/I4/477


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