Velocity Reduction at a Submerged Pipe Outlet

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by Charles E. Rice, USDA, Stillwater, United States,
Kem C. Kadavy, USDA, Stillwater, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering:

Abstract: This paper presents the results of a specific model study to reduce the 17.5 m/s (57.3 ft/s) discharge velocity of a submerged circular pipe discharging at floor level into a 30.5 m (100 ft) wide by 15.2 m (50 ft) long roller compacted concrete stilling basin. A simple four block arrangement broke up the high velocity jet causing considerable energy dissipation within the stilling basin and significantly reduced velocities exiting the stilling basin.

Subject Headings: Fluid velocity | Pipelines | Stilling basins | Hydrologic models | Submerging | Model analysis | Roller-compacted concrete | Energy dissipation |

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