Numerical Investigation on Performance of CPU Heat Sinks

This study is a numerical investigation of the performance of electronic cooling heat sinks in natural convection. A heat sink is a heat dissipation device that consists of a base and fins that extend outward. Different iterations are performed to find the most optimal fin arrangement of the heat sinks. Extruded and cross-cut type heat sinks are taken as a reference for geometry formation. A CFD analysis is carried out on the geometries with boundary conditions as the base temperature of 80 °C and ambient temperature as 32 °C and results are obtained. The parameters, such as temperature drop, heat flux, and heat transfer coefficients are obtained and a comparative study is carried out to find the optimal geometry with maximum efficiency.