Determining the velocity distribution in the boundary layer of an airfoil fitted with a rotary cylinder
This is a 1927 NASA technical report on measuring boundary-layer velocity over an airfoil with a rotating cylinder, prepared by the NASA Technical Reports Server for aeronautical engineers and researchers. The pictures are plain engineering line graphs of velocity against height, with an airfoil cross-section sketch, a velocity distribution comparison and an apparatus diagram of a tank and tubing; a designer could take the stark grid-and-curve layout and the clean schematic line drawings.
