Numerical Simulation and Size Optimization of Rectangular Micro-Channel Heat Sinks

HE Ying; SHAO Bao-dong; CHENG He-ming

doi:10.3879/j.issn.1000-0887.2014.03.006

Volume 35 Issue 3

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HE Ying, SHAO Bao-dong, CHENG He-ming. Numerical Simulation and Size Optimization of Rectangular Micro-Channel Heat Sinks[J]. Applied Mathematics and Mechanics, 2014, 35(3): 278-286. doi: 10.3879/j.issn.1000-0887.2014.03.006

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Numerical Simulation and Size Optimization of Rectangular Micro-Channel Heat Sinks

doi: 10.3879/j.issn.1000-0887.2014.03.006

Department of Engineering Mechanics, Faculty of Civil Engineering and Architecture, Kunming University of Science and Technology, Kunming 650500, P.R.China

Received Date: 2013-09-27
Rev Recd Date: 2013-12-31
Publish Date: 2014-03-15

Abstract

Abstract

Micro-channel heat sinks have the advantages of small volume, low flow velocity and high heat transfer efficiency. With the rapid development of miniaturization industry, micro heat sinks are widely used. Previous studies have shown that the micro-channel’s heat transfer performance is mainly dependent on its geometric and flow conditons, and compared with triangle and trapezoid shapes, rectangle structures have better thermal transfer performance. Based on the finite element software ANSYS Workbench, micro-channel heat sinks with a length of 40 mm and different cross-sectional dimensions were analyzed numerically, to give the optimal micro-channel dimensions with small pressure drop but high heat transfer efficiency. Simulation of the optimized micro-channel shows, given an initial temperature, a mass velocity and a substrate heat flux, a heat flux can be dissipated with a pressure drop down to 230.2 Pa and a heat transfer capacity up to 5.254 W, promising good working performance.
- rectangular micro-channel,
- pressure drop,
- heat flux,
- heat transfer efficiency,
- numerical simulation

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References(17)

References

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