Reaction Tests of Turbine Nozzles for Subsonic Velocities

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Abstract
A large number of turbine nozzles were tested by means of measuring the jet reaction. The results permit a study of the effect of most of the variables which play a role in turbine design. The design of the flow elements of turbines whether they be considered as passages or as profiles always involves a number of compromises between conflicting characteristics. Effects due to changes in the form of the nozzle partitions, their angle, their spacing, their length (called radial height), and their exit-edge thickness are shown. The tests were made during the years 1920–1928. They are here presented for the record, together with some interpretation of their meaning in the light of modern aerodynamics.

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