A detailed numerical study has been carried out to investigate the effects of leadingedge protuberance as a novel flow-separation control-technique for vertical-axis-windturbine (VAWT). The aerodynamic performance stationary protuberanced blade and an associated H-type Darrieus VAWT made three blades were investigated using unsteady Reynolds-Averaged-Navier-Stokes (URANS) Implicit Large Eddy Si...

AbstractThe Darrieus turbine is used as an ocean current converter to generate renewable electrical energy. One way improve performance determine the optimal pitch angle. Therefore, purpose of this study was angle NACA 0018 airfoil with variations -6°, -2°, 0° and 2°. Numerical method help Ansy Fluent software carried out for construction turbine. The result research that 2° produces largest co...