• • The proposed parameter-setting method reduces simulation error to below 6% for the average velocity reduction ratio γS compared to wind tunnel experiments, ensuring high fidelity for engineering design of porous flow-control devices.
• • Nine key parameters spanning modeling, mesh, and solver settings were systematically analyzed; their relative impacts on flow predictions were quantified, enabling prioritization of computational resources for accurate results.
• • The method is validated for both quasi-2D and 3D configurations, with the 3D model capturing side-flow effects that shorten the low-velocity zone; this is critical for finite-width porous structures like windbreaks.
• • The study provides a standardized parameter-setting protocol that mitigates user-dependent variability, improving reproducibility and comparability across different CFD studies of porous structures.