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- Boundary Layer and Aerated Flow Effects on Hydraulic Jacking in Spillway Chutes
Boundary Layer and Aerated Flow Effects on Hydraulic Jacking in Spillway Chutes
Project ID: 22039
Principal Investigator: Tony Wahl
Research Topic: Condition Assessment
Funded Fiscal Years:
2022,
2023 and
2024
Keywords: None
Research Question
How are uplift pressures beneath spillway chutes and the flow through open joints and cracks related to the geometry of the crack or joint and the flow conditions in the chute, specifically the velocity profile near the boundary (in the so-called ‘boundary layer') and the depth-averaged and near-boundary air concentration..
Need and Benefit
The project is related to need 3.1.1.2 (Dams), regarding voids and erosion under spillway slabs and in underdrain systems (cross cutting with Canals), specifically in low probability, high consequence scenarios like Oroville Dam. Quantifying uplift pressures and flow rates generated through spillway joints and cracks will facilitate analyses of void development and prevention of associated failures.
Contributing Partners
Contact the Principal Investigator for information about partners.
Research Products
Please contact research@usbr.gov about research products related to this project.