Dataset ot paper "GEOMETRIC SIMPLIFICATION AS A SOURCE OF UNCERTAINTY IN CFD-BASED URBAN WIND AND VENTILATION ASSESSMENT: WIND-TUNNEL VALIDATION AROUND COMPLEX BUILDINGS"

Dataset ot paper "GEOMETRIC SIMPLIFICATION AS A SOURCE OF UNCERTAINTY IN CFD-BASED URBAN WIND AND VENTILATION ASSESSMENT: WIND-TUNNEL VALIDATION AROUND COMPLEX BUILDINGS": Experimental and CFD-predicted pressure coefficients measured or extracted at the building pressure-tap locations. The dataset includes façade and roof pressure coefficients for the detailed geometry, simplified geometry, different wind-incidence angles and upstream-barrier configurations, depending on availability. Data are provided for the cases analysed in the manuscript and support the global validation, geometric-simplification and barrier-effect comparisons reported in Figures 8, 10, 11 and 14, as well as in Supplementary Figures S5 and S6. Vertical profiles of mean wind velocity and streamwise turbulence intensity measured upstream of the wind-tunnel model. These profiles were used as inlet boundary conditions in the CFD simulations. Data correspond to the reference free-stream velocity case used in the manuscript. Near-ground velocity data measured with Irwin probes in the wind tunnel and extracted from CFD simulations at the same probe locations and height. The file includes experimental wind-tunnel data and CFD predictions for all analysed wind-incidence cases, including the detailed geometry, the simplified-geometry simulation and the upstream-barrier configurations. Case 1S corresponds to the simplified geometry without barrier. Cases 1B and 1BS correspond to the realistic and simplified geometries with the upstream barrier, respectively. These data support the CFD validation shown in Figures 6 and 7, the geometric-simplification comparison shown in Figure 9A and the barrier velocity comparison shown in Figure 14B of the manuscript. Processed pressure-coefficient error metrics used to evaluate CFD performance for the detailed and simplified geometries. Metrics are reported by building surface and include mean absolute error, maximum absolute error, mean relative error and global RMSE, corresponding to the pressure-coefficient analysis presented in Table 3. Processed K-based metrics used to quantify the effect of geometric simplification and the upstream barrier on pedestrian-height wind conditions. The file includes maximum amplification factors and the percentage of the analysed plane assigned to selected K-based comfort categories. Detailed and simplified geometries are compared for the studied wind-incidence cases, and the barrier configuration is included for the 90° wind direction. These data support Figure 12, Table 4, Figure 15 and Table 5 of the manuscript. Geometry file used to define the realistic building configuration analysed in the manuscript. The archive contains the CAD geometry used for CFD preprocessing of the detailed/realistic model. The file is provided at wind-tunnel model scale, corresponding to a geometric scale of 1:240. This geometry supports the CFD simulations used to assess the effect of architectural detail on urban wind flow, façade pressure coefficients, K-based comfort classification and passive wind-mitigation analysis. The realistic geometry reproduces the main architectural features included in the wind-tunnel model, including façade recesses, stairwell openings, the semi-covered corridor connecting the two buildings and the roof curvature. The geometry corresponds to the detailed model used as reference for comparison with simplified geometries in the manuscript. Simplified geometries, upstream-barrier geometries, CFD meshes and ANSYS Fluent case/data files are not included in this dataset, but are available from the corresponding author upon reasonable request.