A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Energy Dissipation in Eighteen-Foot Drop Broken-Back Culvert under Open Channel Flow Conditions
This paper investigates reduction in degradation downstream of broken-back culverts by forming a hydraulic jump. A model was built in the laboratory focusing on a drop between inlet and outlet of 18 feet. Three flow conditions simulated included 0.8, 1.0, and 1.2 times the culvert depth. The hydraulic jump created in the culvert is classified as an "oscillating jump." To locate the jump near the toe, different sill and friction block arrangements were tested. The length of the culvert was 150 feet. In the broken-back culvert, a slope of 1 (vertical) to 2 (horizontal) was used for ease of construction, with the flat part at a 1% slope. The best option to maximize energy dissipation is to use one 5 foot sill located 43 feet from the outlet. The length of the culvert can be reduced by 40 feet. The calculated energy dissipation of the culvert was 66 percent.
Energy Dissipation in Eighteen-Foot Drop Broken-Back Culvert under Open Channel Flow Conditions
This paper investigates reduction in degradation downstream of broken-back culverts by forming a hydraulic jump. A model was built in the laboratory focusing on a drop between inlet and outlet of 18 feet. Three flow conditions simulated included 0.8, 1.0, and 1.2 times the culvert depth. The hydraulic jump created in the culvert is classified as an "oscillating jump." To locate the jump near the toe, different sill and friction block arrangements were tested. The length of the culvert was 150 feet. In the broken-back culvert, a slope of 1 (vertical) to 2 (horizontal) was used for ease of construction, with the flat part at a 1% slope. The best option to maximize energy dissipation is to use one 5 foot sill located 43 feet from the outlet. The length of the culvert can be reduced by 40 feet. The calculated energy dissipation of the culvert was 66 percent.
Energy Dissipation in Eighteen-Foot Drop Broken-Back Culvert under Open Channel Flow Conditions
Tyagi, Avdhesh (author) / Ali, Abdelfatah (author) / Johnson, Nicholas (author)
World Environmental and Water Resources Congress 2013 ; 2013 ; Cincinnati, Ohio
2013-05-28
Conference paper
Electronic Resource
English
Energy Dissipation in an Eighteen-Foot Drop Broken-Back Culvert under Open Channel Flow Conditions
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