Behavior of Vortex Systems
A 1933 technical report on the behavior of vortex systems, issued through NASA's Technical Reports Server and drawn from its aerodynamics archive for engineers and researchers. The pictures are line diagrams of vortex filaments, paired point sources and flow fields drawn in pen, with dashed circulation outlines and arrows. A designer could take the clean schematic line work and the flowing curved streamlines as a source of abstract motion graphics.
