Comparison of Wing Characteristics at an Ultralow Reynolds Number

The hydrodynamic characteristics of 20 wings of different airfoil shape were measured at Re = 4 X 103. Each wing had an aspect ratio At of 7.25. Comparison of the measured wing characteristics showed that hydrodynamic characteristics of a wing with a rectangular airfoil can be improved by either a camber of 5%, a sharp leading edge, or proper corrugation