TY - JFULL AU - Y. T. Yang and H. S. Peng and H. T. Hsu PY - 2013/8/ TI - Numerical Optimization of Pin-Fin Heat Sink with Forced Cooling T2 - International Journal of Electronics and Communication Engineering SP - 883 EP - 891 VL - 7 SN - 1307-6892 UR - https://publications.waset.org/pdf/16426 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 79, 2013 N2 - This study presents the numerical simulation of optimum pin-fin heat sink with air impinging cooling by using Taguchi method. 9 L ( 4 3 ) orthogonal array is selected as a plan for the four design-parameters with three levels. The governing equations are discretized by using the control-volume-based-finite-difference method with a power-law scheme on the non-uniform staggered grid. We solved the coupling of the velocity and the pressure terms of momentum equations using SIMPLEC algorithm. We employ the k −ε two-equations turbulence model to describe the turbulent behavior. The parameters studied include fin height H (35mm-45mm), inter-fin spacing a , b , and c (2 mm-6.4 mm), and Reynolds number ( Re = 10000- 25000). The objective of this study is to examine the effects of the fin spacings and fin height on the thermal resistance and to find the optimum group by using the Taguchi method. We found that the fin spacings from the center to the edge of the heat sink gradually extended, and the longer the fin’s height the better the results. The optimum group is 3 1 2 3 H a b c . In addition, the effects of parameters are ranked by importance as a , H , c , and b . ER -