...Benarfaoui Arfaoui; Mohamed Taher Bouzaher; Belhi Guerira; Charaf-Eddine Bensaci This study investigates the energy extraction mechanism by means of swing arm turbine. The swing arm turbines have a particular motion pattern. The pure translation motion in the conventional flapping turbine changes...

...Peter M. Jamieson Experiments with diffusers and other flow concentrating devices have shown that the power performance coefficient C p of an energy extraction device, defined in relation to the area of flow intercepted at the device, may exceed the Betz limit. “Beating Betz,” in that sense, has...