Research on the effect of a hydraulic machine proposed by M. Segner, professor at Gottingen
Also see E202.
In this work, Euler gives a complete hydraulic analysis, an early example of the theory of relative motion. He also shows that very high speeds are necessary for good efficiency. He argues that "by means of fixed conducting tubes, adjust the incoming velocity of the water so that the speed of efflux relative to the rotor is zero;" in this way, the theorietical efficiency will be "100% at the desired speed of operation." Euler expounds on this idea in greater detail in E222 and in E259. (Based on Clifford Truesdell's introduction to Opera Omnia Series II, Volume 12.)
Original Source Citation
Mémoires de l'académie des sciences de Berlin, Volume 6, pp. 311-354.
Opera Omnia Citation
Series 2, Volume 15, pp.1-39.