Characteristics of Flow Over the Bucket with Gradually Varied Curvature

by Zengnan Dong, Tsinghua Univ, Beijing, China,
Changzhi Chen, Tsinghua Univ, Beijing, China,
Dongshu Chen, Tsinghua Univ, Beijing, China,

Abstract: The bucket of a high spillway dam or a spillway tunnel is one of the parts that easily to be damaged by cavitation. A new type of bucket curve was suggested with gradually varied curvature in this paper. Compared to a monocircle type bucket, that flow condition is improved. But it seems that only change the bucket curve could not avoid the cavitation damage.

Subject Headings: Curvature | Spillways | Cavitation | Dams | Tunnels | Damage (structural) | Gradually varied flow

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