Numerical investigation on thermal properties of micro-pin-fin cooler  

作　　者：张燕 刘扬名 樊靖郁 刘建影 

机构地区：[1]Key Laboratory of Advanced Display and System Application (Shanghai University),Ministry of Education [2]School of Mechatronics Engineering and Automation,Shanghai University [3]Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University [4]SMIT Center and Bionano Systems Laboratory,Department of Microtechnology and Nanoscience,Chalmers University of Technology,SE-412 96 Gothenburg,Sweden

出　　处：《Journal of Shanghai University(English Edition)》2011年第4期272-278,共7页上海大学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.10702037);the National High-Technology Research and Development Program(Grant No.2008AA04Z301)

摘　　要：Micro-pin-fin cooler mounted on the power chip enables the heat removal to meet modern microsystem requirement. Carbon nanotubes （CNTs） have been proven as a potential material for micro-coolers due to the superior thermal conductivity, good mechanical property and so forth, and there appear various applications of CNTs in the micro-cooler technology. In the present paper, an analysis of the thermal and hydraulic characteristics of the micro-pin-fin heat sink was conducted, where air was used as the cooling medium and an impinging jet was introduced to enhance the heat transfer. Three-dimension computational fluid dynamics （CFD） simulations were carried out for micro-pin-fin coolers with various parameters, including the pin-fin size and pattern as well as the jet velocity and nozzle diameter. The flow field and thermal properties of the. micro-pin-fin heat sink were obtained, and the heat removal efficiency was evaluated.Micro-pin-fin cooler mounted on the power chip enables the heat removal to meet modern microsystem requirement. Carbon nanotubes （CNTs） have been proven as a potential material for micro-coolers due to the superior thermal conductivity, good mechanical property and so forth, and there appear various applications of CNTs in the micro-cooler technology. In the present paper, an analysis of the thermal and hydraulic characteristics of the micro-pin-fin heat sink was conducted, where air was used as the cooling medium and an impinging jet was introduced to enhance the heat transfer. Three-dimension computational fluid dynamics （CFD） simulations were carried out for micro-pin-fin coolers with various parameters, including the pin-fin size and pattern as well as the jet velocity and nozzle diameter. The flow field and thermal properties of the. micro-pin-fin heat sink were obtained, and the heat removal efficiency was evaluated.

关 键 词：computational fluid dynamics （CFD） micro-cooler PIN-FIN heat transfer 

分 类 号：TN406[电子电信—微电子学与固体电子学]