Ground-mounted solar panel canopies are increasingly being deployed in agricultural and open-field environments, where their interaction with environmental flows governs local momentum redistribution and near-surface dynamics. Accurate prediction of these effects remains challenging, particularly in the presence of surface roughness, geometric blockage, and flow separation. This study critically assesses the performance of a two-equation Reynolds-Averaged Navier-Stokes (RANS) approach, focusing on the k-ω Shear Stress Transport (SST) model for turbulent flow over inclined solar panel configurations. Two-dimensional simulations are conducted within an open-channel framework and systematically compared with experimental measurements at multiple inclination angles. The evaluation focuses on velocity profiles, wake structures, and integrated mass flux to examine both global consistency and local predictive accuracy.