Abstract

Abstract This paper is devoted to a discussion of the various flow losses in a Pelton bucket. Special attention is given to whether or not such losses are avoidable. Three phases of flow are investigated in detail, i.e., theentrance, the main flow, and the outlet. The author describes the application of a new method to study such movements. The investigation is carried out on a stationary bucket with a jet having the same entrance conditions as the jet on a rotating bucket. The influence of the lip on the entrance conditions is shown by example, and the conditions in the deflected part of the jet are indicated. The loss through the deflected jet is shown in kinetographic representation. A notable loss due to crossing of streamlines on a bucket is discussed. Finally, a list of all possible losses is tabulated.

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