Numerical investigation on thermal properties of micro-pin-fin cooler
Journal article, 2011

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.

computational fluid dynamics (CFD) – micro-cooler – pin-fin – heat transfer


Yan Zhang

Yangmin Liu

Jing-yu Fan

Johan Liu

Chalmers, Applied Physics, Electronics Material and Systems

Journal of Shanghai University

1007-6417 (ISSN)

Vol. 15 4 273 - 278

Areas of Advance

Nanoscience and Nanotechnology

Materials Science

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

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