A Study of Air Flow in an Engine Cylinder
A 1939 technical report on air flow inside an engine cylinder, issued by the National Advisory Committee for Aeronautics and held in the NASA Technical Reports Server collection, written for engine researchers. The plates are graphs of air swirl against crank angle at several engine speeds, a row of valve-timing diagrams, a sequence of injection frames, and a high-speed film still of swirling streaks inside a cylinder, giving a designer curve shapes and an abstract, turbulent texture of light and dark flow.
