Three-dimensional analysis of fluid flow and heat transfer in single- and two-layered micro-channel heat sinks

A three-dimensional numerical analysis of laminar fluid flow and conjugate heat transfer has been conducted for single- and two-layered micro-channel heat sinks. The validity of the numerical model has been confirmed by comparison with available experimental data. Results for the overall thermal resistance, pumping power, the maximum temperature difference on the heat-sink surface where the heat flux is applied, and an overall performance parameter were obtained for single- and two-layered sinks. The effects of Reynolds number, inlet velocity profile, and flow arrangement in the channels (parallel and counter) on these results are presented and discussed. A special emphasis was placed on the comparison between the thermal performances of the parallel and counter flow arrangements and further results were obtained in order to quantify and explain the relative performance under these flow arrangements.

[1]  C. Rhie,et al.  Numerical Study of the Turbulent Flow Past an Airfoil with Trailing Edge Separation , 1983 .

[2]  Y. Bayazitoglu,et al.  Heat transfer in rectangular microchannels , 2002 .

[3]  Ralph L. Webb,et al.  Next Generation Devices for Electronic Cooling With Heat Rejection to Air , 2005 .

[4]  Said I. Abdel-Khalik,et al.  An experimental investigation of single-phase forced convection in microchannels , 1998 .

[5]  K. Vafai,et al.  Analysis of two-layered micro-channel heat sink concept in electronic cooling , 1999 .

[6]  D. Tuckerman.  Heat-transfer microstructures for integrated circuits , 1984 .

[7]  S. Patankar.  Numerical Heat Transfer and Fluid Flow , 2018, Lecture Notes in Mechanical Engineering.

[8]  Timothy J. Barth,et al.  The design and application of upwind schemes on unstructured meshes , 1989 .

[9]  R. Viskanta,et al.  Three-dimensional conjugate heat transfer in the microchannel heat sink for electronic packaging , 2000 .

[10]  Three-dimensional thermal analysis of heat sinks with circular cooling micro-channels , 2004 .

[11]  M. Patterson,et al.  Experimental and Numerical Study of a Stacked Microchannel Heat Sink for Liquid Cooling of Microelectronic Devices , 2007 .

[12]  I. Mudawar,et al.  Analysis of three-dimensional heat transfer in micro-channel heat sinks , 2002 .

[13]  J. Meyer,et al.  Constructal cooling channels for micro-channel heat sinks , 2007 .

[14]  S. Wereley,et al.  Experimental and Computational Investigation of Flow Development and Pressure Drop in a Rectangular Micro-channel , 2006 .

[15]  Zeng-Yuan Guo,et al.  Size effect on microscale single-phase flow and heat transfer , 2002 .

[16]  M. M. Rahman,et al.  Analytical solution of conjugate heat transfer and optimum configurations of flat-plate heat exchangers with circular flow channels , 2006 .