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...

The geometry of a conventional two-bladed Savonius rotor was used in this study based on report available the literature. A two-dimensional model consisting two buckets and an overlap ratio 0.1 prepared. unsteady Reynolds averaged Navier-Stokes (URANS) equations eddy-viscosity turbulence SST k-ω were employed order to solve fluid motion numerically. Instantaneous velocities pressures calculated...