Flow Pattern Evaluation for Aluminum CPU Cooling Fan Blades

The increasing thermal output of modern CPUs demands more efficient cooling solutions to maintain optimal performance and prolong system lifespan. Traditional CPU cooling fans commonly use plastic (polypropylene) blades, which are limited in heat absorption and mechanical durability. This study investigates the performance of aluminum fan blades as an alternative, leveraging their superior thermal conductivity and strength. Using SolidWorks for 3D modeling and meshing, followed by Computational Fluid Dynamics (CFD) simulations, various blade designs and angles are evaluated to optimize airflow and thermal dissipation. The analysis focuses on key performance indicators such as airflow velocity, heat dissipation rate, and overall cooling efficiency. Results indicate that aluminum blades significantly improve heat suction and thermal transfer from the CPU surface, although their higher density introduces a trade-off with fan speed due to increased inertia. Adjustments in blade angle further enhance cooling performance by directing airflow more effectively. This research offers practical insights into the design of advanced CPU cooling systems, highlighting the potential of aluminum blades to improve thermal management in high-performance computing environments.