Effect of orifice length-diameter ratio on the coefficient of discharge of fuel-injection nozzles
This is a 1931 NACA technical report, published by the National Advisory Committee for Aeronautics in the United States, for aeronautical engineers and researchers studying fuel-injection nozzles in aircraft engines. The pictures are plotted graphs of coefficient of discharge against injection pressure and Reynolds number, with small cross-sections of nozzle orifices and legend tables. A designer could take from them the clean line-graph layout with dashed and solid curves, grid-ruled axes and compact symbol keys.
