Performance enhancement of an H‐Darrieus vertical axis wind turbine via moving surface boundary‐layer control

The moving surface boundary-layer control method (MSBC) is a kind of active flow methods that overcomes the adverse pressure gradient and suppresses separation by directly energizing boundary layer near surface. In this study, computational fluid dynamics simulations were performed to investigate feasibility using MSBC improve aerodynamic performance straight-bladed H-Darrieus vertical axis wind turbine (VAWT). doing so, segment original VAWT blade was then replaced with Influences different geometric motion parameters surface, including location, length, velocity ratio, groove depth on net power coefficient VAWT, systematically studied. Moreover, sensitivity at optimal tip speed ratio analyzed via orthogonal design method. As result, combination able be determined. present results show maximum having blades partially can increased 22.8% compared baseline VAWT. addition, effectiveness two methods, co-flow jet in improving also compared. It found has potential achieve superior promote energy utilization more effectively comparatively less external input.