Thermal performance evaluation of vertical slotted circular fins over turbulence flow regime in a heat sink
The study investigates the thermal performance of vertical slotted circular fins in heat sinks under turbulent flow conditions. As electronic devices become more compact and power-dense, efficient thermal management is critical. This research uses numerical simulations to evaluate six different slot sizes (0.5 mm to 3 mm) in terms of their impact on heat transfer and flow dynamics. The fins, modeled in 3D and subjected to Reynolds numbers ranging from 8490 to 23300, were analyzed for heat transfer efficiency and friction factors. Results indicate that slotted fins outperform solid fins, with the S-D slot configuration achieving a 17.73% increase in the Nusselt number and a 28.77% reduction in friction factor at a Reynolds number of 13,365. The Thermal Evaluation Criteria highlight the S-D slot as the most effective, providing a 15.17% improvement in overall performance. These findings underscore the potential of slotted fins in optimizing thermal management systems by balancing enhanced heat dissipation with reduced energy consumption. 2025 Author(s).
Rajashekaraiah, Thejaraju; Panigrahi, Sajna Parimita; Dulabhai, Hadiya Pritesh; Sathyamoorthy, Gowtham Sanjai; Veerabhadrappa, Umesh; Rego, Anil Melwyn
AIP Conference Proceedings;Volume;3330;Issue;1;Article No.;20025;
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https://doi.org/10.1063/5.0291699 https://www.scopus.com/pages/publications/105021100958?origin=resultslist
Rajashekaraiah T., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, India; Panigrahi S.P., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, India; Dulabhai H.P., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, India; Sathyamoorthy G.S., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, India; Veerabhadrappa U., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, India; Rego A.M., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, India