Forced Convection Heat Transfer Coefficient and Pressure Drop of Diamond-Shaped Fin-Array

Shigeki Hirasawa, Atsushi Fujiwara, Tsuyoshi Kawanami, Katsuaki Shirai

Department of Mechanical Engineering, Kobe University, Kobe, Japan.

DOI: 10.4236/jectc.2014.43009                

Abstract

Forced convection cooling of fins on a high-temperature wall has been used to cool high-power electronic devices. We numerically calculated and experimentally measured the forced convection heat transfer coefficient and pressure drop of a diamond-shaped fin-array with water flow in this study, which had been reported to have a self-induced flip-flop flow phenomenon. Although the flip-flop flow phenomenon occurred in calculations, it was not observed in experiments. The heat transfer and pressure drop of the diamond-shaped fin-array could be estimated with equations for turbulent flow in tubes.

Keywords

Forced Convection, Heat Transfer Performance, Diamond-Shaped Fin, Flip-Flop Flow

Conflicts of Interest

The authors declare no conflicts of interest.

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