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A review on the effect of shape on performance of pin fins

Author : Ankit Girolla, Sunil.V.Dingare and Pramod.S.Purandare

Pages : 183-186
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Pin fins are extended surfaces protruding from heat sinks in a perpendicular direction. The heat transfer flow flows in cross direction to the pin fin. The use of pin fins results in higher heat transfer coefficients.From the literature it is clear that pin fins offer the highest heat transfer coefficient amongst all other types of fins. But along with the increased heat transfer rate the higher pressure drops associated with the pin fins reduce the overall performance of the pin fins. Hence a lot of research is being carried out to reduce the pressure drop. This paper focuses on the effect of the shape on the performance of the pin fins. Due to the more streamlined shape the wake region is reduced which results in reduction in the pressure drop.

Keywords: Convection, Reynolds number, Heat transfer coefficient, Pressure drop, Drag coefficient

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