Unfortunately, wind turbines only collect a small portion of the of green energy that the wind produces. Furthermore, due to the noise and discomfort they produce, multi-megawatt wind turbines cannot be installed in urban areas. To reduce the noise as much as possible, tiny horizontal-axis wind turbines with low tip speed ratio can be installed instead. Unfortunately, because this wind turbine operates at low Reynolds numbers, the flow around it is rather complicated. When determining the aerodynamic performance of wind turbine airfoils, the computational grid and turbulence model are crucial. Blade optimization is required to determine an appropriate turbulence model and computational grid, to more precisely compute the aerodynamic performance data of wind turbine airfoils, and to gain a deeper understanding of the nature of flow over an airfoil. The airfoil’s shape, length, angle, and other characteristics are crucial. The present study examines the analysis of a unique airfoil- S814 designed for small-scale horizontal axis wind turbines (HAWT) at varying angles of attack and fixed Reynolds numbers. A thorough analysis of the airfoil S814 has been conducted to illustrate the flow behavior over the airfoil. ANSYS/Fluent software is used to perform a computational fluid dynamics analysis of an airfoils at various angles of attack and a wind speed of 6 m/s. Plots have been created to display the distributions of pressure, turbulence, velocity on airfoil and lift-to-drag coefficient at various angles of attack.