Advances in Science and Technology Vol. 158

Abstract: The increasing demand for clean and renewable energy has led researchers to focus on the development of vertical-axis wind turbines. This paper aims to compare the flow field and performance of the Tornado wind turbine with those of Savonius, Darrieus, and hybrid wind turbines at different tip speed ratios. A two-dimensional, incompressible, turbulent, and unsteady flow model was created using ANSYS Fluent 21 and verified through grid independence studies. The Tornado wind turbine demonstrates enhanced aerodynamic efficiency and reduced negative torque. The results show that the Tornado model achieves a peak power coefficient at a TSR of around 1.1. The model's validity was confirmed by comparing simulation results with experimental data for the model TN-2000 VW4, indicating its potential for real-world applications.