Design And Performance Evaluation Of A Hybrid VerticalAxis Wind Turbine By Combining Darrieus And Savonius Blades Using Ansys-CFX

Wind energy, as a renewable energy source, is one of the most efficient and cost-effective methods to overcome the need for power. In this work, a vertical-axis hybrid wind turbine (VAHWT) is designed and simulated to obtain an extended operational range, improve aerodynamic performance, and enhance self-starting capabilities in local urban areas. The VAHWT is designed to achieve high RPM at minimum wind velocity, less noise, easy installation, and maintenance, and reacts to wind from all directions for domestic usage. The VAHWT, consisting of a 3-bladed modified Darrieus and Savonius turbine, is modeled and analyzed in high-performance computational fluid dynamics (CFX) to calculate the characteristic parameters of the designed turbine. The model of the designed VAHWT is prepared in SolidWorks, and the geometry is then used to generate the grid in Ansys Meshing for CFX analysis to evaluate the performance. The results show that the turbine with Darrieus and Savonius blades has a coefficient of power (Cp) of 35% at a tip speed ratio (TSR) of 2.09, and a power of 216.60 W can be generated when the turbine is run at 205rpm at the wind speed of 6 ms−1. This work emphasizes the electrification of local areas with minimum cost and operational range, supporting energy sustainability prospects. © The Author('s).