<p>Duct augmented wind turbines (DAWT) are particularly effective in regions with low wind speeds, efficiently harnessing wind energy to generate electricity. This study evaluates and optimizes the performance of a DAWT capable of producing 600 W of renewable power. Initially, to validate the numerical simulation method, the turbine was simulated at axial speeds ranging from 7 to 15 m/s and rotational speeds between 50 and 150 rad/s. The simulation results closely matched the experimental and numerical results in the literature. Subsequently, geometric optimization was conducted under specific operational conditions. The optimization was performed at five longitudinal positions of the rotor, ranging from 20 to 40% of the duct length, and under five tip clearance conditions, varying from 3 to 15% of the rotor radius. Based on the analyses, the optimal geometry and operational conditions for the DAWT were identified. The response surface method was employed to determine the optimal longitudinal placement of the rotor within the duct and the appropriate tip clearance to achieve the maximum power coefficient of the turbine, which was subsequently validated using numerical methods. The results indicated that the power coefficient of the turbine, when positioned optimally and with the appropriate tip clearance, would increase by 12% compared to the initial condition.</p>