Abstract: This study investigates the heat transfer performance of rectangular and triangular fins on a heat sink system, designed using real-time application parameters. The heat sink, consisting of 15 fins, which was modeled in CATIA software, focusing on the impact of varying fin lengths on performance parameter’s such as heat flow rate, heat loss per unit mass, effectiveness, and efficiency. The research combines theoretical and calculations and Computational Fluid Dynamics (CFD) simulations in ANSYS Fluent to analyze fluid dynamics and heat transfer characteristics. The study compares the efficiency, rate of heat flow per unit mass and effectiveness of both fin shapes, Through the simulations, detailed insights into fluid flow and temperature distribution were gained, providing a comprehensive understanding of how geometry affects heat sink performance. The findings could aid in optimizing heat sink designs across industries like electronics, automotive, and aerospace, where efficient thermal management is essential for performance and reliability.

Keywords: Heat sink, thermal performance, fin shapes, CFD simulations and heat dissipation.

| DOI: 10.17148/IARJSET.2024.111106