The paper presents a numerical simulation of the flow around a perforated wind fence and focuses on its impact on the flow field in the coal loading-unloading area. The numerical modeling is performed using the open-source software OpenFOAM. Velocity profiles in various sections of the loading and unloading area are compared for different fence placements. The results enabled the identification of vortex structure formation patterns and recirculation zones, which are critical for assessing dust dispersion potential. Based on a comparative analysis of the velocity fields, the most and least effective ways to use a windbreak fence are determined.