Numerical study of the effects of maximum thickness variations in S1046 airfoils on the aerodynamic performance of an H-Darrieus wind turbine

This Excel workbook contains the supplementary data associated with the numerical study of maximum-thickness variations of the S1046 airfoil applied to an H-Darrieus vertical-axis wind turbine. The workbook includes the original S1046 airfoil coordinates and six geometrically modified profiles obtained by preserving the original \(x\)-coordinates and scaling the \(y\)-coordinates according to \(y' = k y\). The investigated thickness variations are −12.8%, −6.4%, +6.4%, +12.8%, +19.2%, and +32%, corresponding to scaling factors of 0.872, 0.936, 1.064, 1.128, 1.192, and 1.320, respectively. The airfoil coordinates are provided in millimetres for a reference chord of 50 mm. The file also provides the principal numerical settings used for the two-dimensional and three-dimensional transient URANS CFD simulations in ANSYS Fluent 2020 R1, including the turbulence model, numerical schemes, convergence criteria, temporal discretization, free-stream conditions, and simulation duration. In addition, the main H-Darrieus rotor geometry and computational-domain parameters are reported, including blade number, chord, rotor diameter and height, shaft diameter, solidity, swept area, blade orientation, and domain dimensions. The workbook is organized into the following sheets: S1046 original, containing the airfoil coordinate datasets; Summary of modifications, describing the geometric transformations; CFD Setup, summarizing the main numerical and boundary-condition settings; Geometry and Domain, reporting the rotor and computational-domain parameters; and README, providing explanatory notes for reuse and interpretation of the dataset. These data are provided to support reproducibility, verification, and further numerical or experimental studies involving S1046 airfoil thickness modifications and H-Darrieus vertical-axis wind turbines.