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CFD analysis of a wind panel with Savonius wind turbines

Grzymisławski Przemysław, Półtoraczyk Dawid, Kałkowska Joanna

Advances in Science and Technology. Research Journal

2025

Vol. 19, no. 9

105--116

The paper presents the results of numerical analyses of a wind panel built of 6 vertical Savonious wind turbines. The basis for comparison were calculations made for a single turbine with the same parameters. Simulations were performed for six different directions of inflow, from almost parallel to the panel (5°) to almost perpendicular (85°). The calculations were performed using the Ansys FLUENT program, while the computational grids were prepared in the GMSH program. The aim of the analyses was to investigate the influence of the wind inflow angle on the panel on the amount of energy produced on subsequent turbines. The analysis covered the velocities between individual turbines and their influence on subsequent turbines. The calculations were performed as time-varying on a two-dimensional plane. Based on the obtained results, it was found that the inflow angle has a large influence on the efficiency of subsequent turbines as well as inflow velocity. For the angles up to 30° the aerodynamic wake behind subsequent turbines has a huge influence on the stability of the inflow on the next ones. For the cases from 45° the flow between turbines starts play significant role.