Effects of Some Primary Variables of Rectangular Vortex Generators on the Static-pressure Rise Through a Short Diffuser
This NASA technical report from 1952, produced by the National Advisory Committee for Aeronautics, is an engineering study of vortex generators in aircraft air ducts. Its charts plot static-pressure rise across a short diffuser against geometry and flow-state variables, for aerodynamics engineers. The pictures are plain black-and-white graph plots with labelled curves, grid lines, and axis numbers, offering a designer little beyond the stark, functional look of mid-century technical charting.
