Abstract Until recently, horizontal-axial wind turbines with blades having a wing profile occupied predominant position in the world energy market. But currently, vertical-axial units are of increasing interest and this is understandable from point view their important features as: no requirements for orientation turbine to wind, possibility placing electrical other equipment on ground, changes...

Abstract Improving machines efficiency and searching for their new applications are the main topics in development of renewable energy industry. In case Savonius type wind turbines, works aim at improvement aerodynamic performance. The CFD simulations a turbine equipped with deformable blades showed significant positive impact this enhancement on machine efficiency. Previously, investigation wa...