Effect of Nozzle Design on Fuel Spray and Flame Formation in a High-Speed Compression-Ignition Engine
This is a 1937 NASA technical report, published in the United States, that records experiments on how nozzle shape affects fuel spray and flame formation in a high-speed compression-ignition engine. Its pictures are strips of sequential photographs of crankshaft degrees, arranged in rows, showing fuel sprays and flames as bright and dark circular frames. A designer could take from them the stepped-sequence layout, the high-contrast circular frames, and the grid of small labelled panels used to show change over time.
