This project aims to analyze the aerodynamics of a horizontal axis wind turbine using computational fluid dynamics (CFD) software. The analysis compares the performance of blades with different airfoil profiles including NACA-9417, MH-102, and SC 02-0714 at various angles of attack. Additional analyses are conducted with a blade featuring a winglet add-on and with a three-blade rotor assembly. Results show improvements in lift, drag, and lift-to-drag ratio from the winglet. Visualizations of pressure, velocity, and turbulence are also presented.