Fluid flow and heat transfer characteristics of heat sinks with laterally perforated plate fins
作者： Sakkarin Chingulpitak , Ho Seon Ahn , Lazarus Godson Asirvatham , Somchai Wongwises
DOI: 10.1016/J.IJHEATMASSTRANSFER.2019.04.027
关键词: Fin 、 Heat sink 、 Pressure drop 、 Mechanics 、 Heat transfer 、 Materials science 、 Volume (thermodynamics) 、 Perforation (oil well) 、 Nusselt number 、 Thermal resistance
摘要: Abstract This study presents the thermal performance of laterally perforated plate-fin heat sinks (LAP-PFHSs) with different numbers (Np) and diameters (Dp) circular perforations. Based on same plate fin dimension, available diameter perforations is limited by their number. The largest perforation for Np = 14, 27 75 are 10 mm, 7 mm 4 mm, respectively. computational results solid (SFHSs) LAP-PFHSs validated measured data experimental from literature. comparison give mean absolute error about 3.6% 5.3% pressure drop resistance, According to numerical results, LAP-PFHS Dp = 3 mm Np = 75 exhibits highest transfer rate, 11.6% higher than that SFHS. Finally, factor, which a consideration Nusselt number friction proposed find suitable design parameters. Under conditions, optimized demonstrates 10.6% greater 28% lower volume sink material
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