TY - JOUR
T1 - Optimization and comparative study on oblique-and rectangular-fin microchannel heat sinks
AU - Ansari, Danish
AU - Husain, Afzal
AU - Kim, Kwang Yong
N1 - Funding Information:
This research was supported by the National Research Foundation of Korea (NRF) grant no. 20090083510 funded by the government (Ministry of Education in Science and Technology) through the Multi-Phenomena CFD Engineering Research Center.
PY - 2010
Y1 - 2010
N2 - The optimization of the microchannel heat sink (MCHS) with offset oblique fins and the comparison of the optimized MCHS with various different MCHS are discussed. The three-dimensional analysis of convective heat transfer through the microchannels was performed numerically using Navier-Stokes equations along with the analysis of heat conduction in the substrate. Adiabatic boundary conditions were applied at the inlet and outlet portions of silicon while fluid inlet temperature was taken as 300 K. It was observed that the changes in pumping power and thermal resistance were about 5 and 1%, respectively, for a change of grids from 600,000 hexahedral elements to 1,800,000 hexahedral elements. The analysis showed that the changes in pumping power and thermal resistance were commonly about 1% for a change of grids from 1,800,000 elements to 2,600,000 elements for the typical grid analysis with the design variables α = 0.450, β = 0.333, γ = 0.500, and θ = 0°.
AB - The optimization of the microchannel heat sink (MCHS) with offset oblique fins and the comparison of the optimized MCHS with various different MCHS are discussed. The three-dimensional analysis of convective heat transfer through the microchannels was performed numerically using Navier-Stokes equations along with the analysis of heat conduction in the substrate. Adiabatic boundary conditions were applied at the inlet and outlet portions of silicon while fluid inlet temperature was taken as 300 K. It was observed that the changes in pumping power and thermal resistance were about 5 and 1%, respectively, for a change of grids from 600,000 hexahedral elements to 1,800,000 hexahedral elements. The analysis showed that the changes in pumping power and thermal resistance were commonly about 1% for a change of grids from 1,800,000 elements to 2,600,000 elements for the typical grid analysis with the design variables α = 0.450, β = 0.333, γ = 0.500, and θ = 0°.
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U2 - 10.2514/1.50162
DO - 10.2514/1.50162
M3 - Article
AN - SCOPUS:78149400678
SN - 0887-8722
VL - 24
SP - 849
EP - 852
JO - Journal of Thermophysics and Heat Transfer
JF - Journal of Thermophysics and Heat Transfer
IS - 4
ER -