Conversion of energy in cross-sectional divergences under different conditions of inflow
This is a 1934 NASA Technical Reports Server engineering paper on energy conversion in cross-sectional divergences of flow channels, issued by NASA's technical report archive from an earlier aeronautical research series. The pictures are dense technical charts of fluid velocity profiles, pressure coefficients and entrance-section curves, drawn as plain black line graphs on gridded paper. A designer could draw on their clean axis-and-curve vocabulary for diagrammatic infographics, though the content is specialised and the charts carry little visual appeal beyond their graphic structure.
