Abstract
In the present study, a numerical investigation is conducted to observe the effect of forced convection heat transfer for various innovative shaped pin fin heatsink designs by altering the effect of various parameters on the fluid domain and the solid domain. The study illustrates the possible configuration of such heat sink design implementing Twisted and Grooved shaped innovative pin fins. Different perforation shapes and alignments are applied to extend the surface area resulting in increased heat transfer rate and hydrothermal performance factor (HTPF). Navier-Stokes's equations and RANS (Reynolds Averaged Navier-Stokes) based k−ε turbulence model govern the modeling of the study. Compared to available recent literature, the HTPF has increased by about 9% for Grooved Circular perforated pin fin at Reynolds number (Re) = 21367. The results showed an improvement of the average Nusselt number (Nu) by 32%. The grooved-shaped circular perforated heat sink has been observed with an improved HTPF of about 27% from the baseline case. Also, the Cu-Diamond composite on grooved circular perforated pin fin has shown improvement in HTPF by 33% at Re = 21367. Pressure drop has also been observed to be lowest in the case of the grooved fin with circular perforations. Hence, this design significantly benefits the HTPF.
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