Enhancing Savonius Vertical Axis Wind Turbine Performance: A Comprehensive Approach with Numerical Analysis and Experimental Investigations

Small-scale vertical-axis wind power generation technologies such as Savonius turbines are gaining popularity in suburban and urban settings. Although (VAWTs) may not be efficient their horizontal-axis counterparts, they often present better opportunities for integration within building structures. The main issue stems from the suboptimal aerodynamic design of turbine blades, resulting lower efficiency output. To address this, modern designs focus on optimizing various geometric aspects to improve performance, efficiency, overall effectiveness. This study developed a unique optimization method, incorporating new blade geometry with guide gap flow design. characteristics were extensively analyzed using 3D ANSYS CFX software. process emphasized coefficient objective function while considering profiles, overlap ratio, number crucial parameters. was accomplished experiments (DOE) method Minitab statistical research findings revealed that novel “OR0.109BS2BN2” outperformed reference 22.8% higher coefficient. Furthermore, results indicated trade-off between (swirling flow) through impact blockage which resulted reduced channel width caused by extended tip length.