Numerical Simulation of Heat Transfer Performance in Novel Biomorphic Pin-Fin Heat Sinks

Abstract

Pin-fins are effective strategies to enhance heat sink performance; moreover, bio-inspired designs present endless geometrical potential. In this work, a comparative investigation of two biomorphic pin-fin-based heat sinks was carried out via ANSYS CFD simulations. The results showed that the heat transfer performance of the pentagonal and sharp-edged design reported approximately 14% higher Nusselt number compared to a circular and smoother-edged design. Furthermore, the pressure drops or variations within both heat sinks were minimal. The findings from this research provide a baseline for future bio-inspired heat sink designs and heat transfer improvement strategies.

Investigating Heat Transfer and Flow Characteristics under Different Wall Heating Conditions in Novel Micro Pin-Fin Heat Sinks

“…However, 550≥Re≥400 generally fall in the laminar region. The governing equations and assumptions used for modelling were adapted/modified from previous works [5] and are as follows:…”