Effect of Inner Arc Extension on the Performance of Vertical Axis Wind Turbine

Wind power is widely accessible and widely recognized as one of the cleanest and most sustainable kinds of electricity. In the present investigation, the vertical axis wind turbine with modified Savonius turbine vanes is explored. The modified Savonius vane shape for hydrodynamic application, is further analyzed for wind turbine application in the present investigation. The domain size optimization, grid independence study, and validation of the used methodology are carried out before going to the detailed investigation of the present investigation. The outcome of the results is analyzed using velocity and pressure contours, variation of coefficient of torque, and coefficient of power with different tip speed ratios. The results indicate that the zero vane extension provides the best power coefficient of power among all the cases of vane extensions investigated in the present study.