Three-Dimensional Numerical Simulation of Heat Transfer for Different Shapes of Heat Sinks

In this research, a three-dimensional simulation of fluid flow and heat transfer using Computational Fluid Dynamics (CFD) for various types of heat sinks are presented. A new pins design has been proposed, which consists of a pyramid pin fins form was simulated by using (ANSYS Fluent software 17.2), the software was used to simulate the heat sink three-dimensional model with standard (k-ε) turbulence mathematical model with different factors. There were six unique fins pins models: square, circular, triangular, pyramid circular, pyramid square, and pyramid triangular pin fin heat sink various designs. The thermal performance of pin fin heat sinks designs was founded by several attempts of simulations with a heat flux of (23088 W/m2) and air travel velocities range that have a Reynolds number range between 8515 to 22312. These conditions were applied to the heat sink model to calculate the heat dissipation from the pin fin heat sinks designs. Numerical predictions of temperature and velocity vector in the heat sinks are founded from the model solution results. The founded results also indicate that the performance of the prism pin fin heat sink (PPF) is to be the most effective design that dissipating heat from the other fins designs; this performance of the prism pins can be due to the largest surface area compared to the other designs.