... this issue by obtaining an optimal blade profile considering the power coefficient (C P ) as an output function using optimization techniques. The objective function includes the overlap ratio, intermediate points on the curve, inlet velocity, and tip speed ratio (TSR) as the optimization geometric...

..., efficiency was increased in terms of lift coefficient (C l ) and power coefficient ( C p ) by 2.32% and 17.94%, respectively at the angle of attack of 15 deg. The results indicate that slotted airfoils have a better lift coefficient and power coefficient compared to an airfoil without a slot. The best...

...) is kept between 0.5 and 6. The upstream turbine (UsT) is capable to produce a maximum power coefficient (C pmax ) of 0.30 at a wind speed U = 8 m/s, whereas at the same wind speed, the downstream turbine (DsT) produces C pmax values of 0.12, 0.13, and 0.15 when installed at a distance of 6R, 8R, and 10R...

... 2021 14 10 2021 09 11 2021 small-scale horizontal-axis wind turbines Reynolds number tip speed ratio airfoil selection blade design power coefficient alternative energy sources energy conversion/systems energy extraction of energy from its natural resource renewable energy...

... = 87,039, 107,348, and 131,066). Further, its performance is compared to that of a conventional semicircular-bladed rotor under identical test conditions. The experiments revealed the maximum power coefficient (C Pmax ) of 0.11, 0.162, 0.213 at Re = 87,039, 107,348, and 131,066, respectively, for the arc...

... of diameter, with wind tunnel experiments for validation. The axial induction factor obtained with the new technique was compared to the classical blade element momentum method. The results show axial induction factor variations along the radial and axial coordinates. An analogy with Glauert power coefficient...

... and free-wind speed, the maximum power coefficient develops in TSR = 0.8. In addition, increasing the free-wind speed enhances the rotor performance of all cases under consideration. Finally, it is revealed that the rotor with s/d = 0.5 provides maximum power coefficients in all free-wind speeds and TSR...

... numerically. Most of these studies estimated the torque and power coefficients (C T and C P ) at given flow conditions. However, the two important aerodynamic forces, viz., the lift and the drag, acting on the elliptical-bladed rotor have not been studied. This calls for a deeper investigation into the effect...