A preliminary investigation of boundary-layer transition along a flat plate with adverse pressure gradient
This is a 1938 NASA technical report, a preliminary study of boundary-layer transition on a flat plate under adverse pressure gradient, issued for aeronautical researchers. The single plate shows boundary-layer velocity profiles, rotated sideways, with velocity distribution on the vertical axis and distance from the leading edge on the horizontal axis, plotted as curved lines against a grid. A designer could take from it the clean grid-and-curve plotting style and the stepped family of curves that shows how a flow profile thickens along a surface.
