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Numerical investigation on thermal properties of micro-pin-fin cooler |
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| Authors: | ZHANG Yan LIU Yang-ming FAN Jing-yu LIU Johan |
| Affiliation: | 1. Key Laboratory of Advanced Display and System Application(Shanghai University), Ministry of Education, Shanghai 200072, P.R. Chain;School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, P. R. China 2. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, P. R. China 3. Key Laboratory of Advanced Display and System Application(Shanghai University), Ministry of Education, Shanghai 200072, P.R. Chain;School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, P. R. China ;SMIT Center and Bionano Systems Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden |
| Abstract: | 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. |
| Keywords: | computational fluid dynamics (CFD) micro-cooler pin-fin heat transfer |
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