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|Title:||Spillway velocity measurement and flip bucket trajectory, Raystown Dam, Juniata River, Pennsylvania|
|Authors:||United States. Army. Corps of Engineers. Baltimore District.|
Fagerburg, Timothy L.
|Publisher:||Hydraulics Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; HL-79-3.|
Abstract: Tests were conducted at Raystown Dam, Juniata River, Pennsylvania, to investigate flow characteristics of the left spillway and warmwater chutes. Velocity probes were installed in the chutes for measurement of the vertical velocity distribution. These measurements were used to study the boundary layer development and to determine an equivalent roughness for the spillway surface. Depths of flow along the spillway were measured with staff gages painted on the walls of the warmwater chute. The trajectories from the spillway flip bucket were photographed for each test and then used to determine the height and length of the trajectory. The equivalent sand grain roughness K𝑠 determined for the Raystown spillway (0.00152 ft) supplements previous data. A more accurate determination of the boundary layer location could have been obtained had the velocity probes encompassed the entire depth of flow at each location on the spillway. Trajectories of flow deflected by the spillway bucket agreed with the model studies.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Miscellaneous Paper|
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|MP-HL-79-3.pdf||7.23 MB||Adobe PDF|