... better improvement in the forces. Finally, the dynamic stall of the E387 with the DBD actuator is considered. The simulation shows that generally when the DBD is on, the lift coefficient in the pitch-up section has lower values and in the pitch-down has higher values than the DBD off mode. Practical...

... the feature of deep dynamic stall. When the blade travels through the nadir of its path, the actual angle of attack is close to zero due to the strong downwash. Furthermore, there exits intensified blade-vortex interaction induced by the preceding blade for large cambered aerofoils at the lower-right part...

... generation. Findings The 2.5D numerical simulation cannot produce more accurate results than the 2D counterpart. The pitching motion of the blade results in dynamic stall. The dynamic stall vortices induce parallel blade vortex interaction (BVI) upon downstream blades. The interactions between the blades...

... trailing edge centerline (cm) x=downstream distance from trailing edge centerline (cm) x=distance from leading edge (cm) c=airfoil chord (cm) Symbols Dynamic stall Plunging airfoil Power spectra Trailing edge strip flap Wake The Gurney flap is a simple device, consisting...