The design and manufacture of composite material sandwich type blade is presented. Stainless steel rods and ribs, are the internal structure, core is foam, between ribs. The skin is a laminate of fiber glass and a ...

This project investigates the combination of upper surface dimples and trailing edge serrations of a 3D thin airfoil and their effect on aerodynamic performance. Dimples are known to reduce a golf ball’s drag while a ...