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Solid roller buckets were developed in 1933, following their first application on the 85 m high Grand Coulee dam, USA.
22.2 SOLID ROLLER BUCKET
The hydraulic action in a solid roller bucket is that of a hydraulic jump on a curved invert under excessive submergence by tail water.
The principal elements of the design of solid roller buckets are: fixing invert elevation, lip angle, and radius of the bucket.
Figure 2 Solid roller bucket: relevant parameters.
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