This study presents a numerical investigation of the aerodynamic behavior of the NACA4412 aerofoil for small wind turbine applications operating in Bangladeshi wind conditions. A steady Reynolds Averaged Navier Stokes (RANS) approach using the Shear Stress Transport (SST) k-ω turbulence model was used in ANSYS Fluent to evaluate the lift, drag, and moment characteristics of the aerofoil at a velocity of 7 m/s, corresponding to a Reynolds number of 4.8 × 10⁵. The analysis considered -8°, -4°, 0°, 4°, and 8° angles of attack to represent low to moderate operating conditions relevant to small horizontal axis wind turbines in Bangladesh. Additionally, a C type mesh was generated to ensure proper boundary layers. The numerical results show a linear increase in lift to 8°, minimal drag near zero, and the highest aerodynamic efficiency occurring between 4° and 8°, indicating that the NACA 4412 aerofoil is suited for low wind regions like Bangladesh’s coastal area. The findings support preliminary aerodynamic design decisions for small wind turbines and provide a reference dataset for future transient analysis.