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Mesoscale Analysis of Cavitation and Cavitation Erosion
Cavitation is one of the most common types of damage in hydraulic and hydropower engineering projects. In 1941, the spillway of the Boulder Dam in the U.S. suffered cavitation and developed a deep cavitation pit of 35 m in length, 9.5 m in width, and 13.7 m in depth at the end of its ogee section as a result of the washing away of over 4500 m3 of concrete and rock. In 1967, the spillway of the Yellowtail Dam in the U.S. discharged floodwater at the maximum flow rate of 560 m3/s and the maximum flow velocity of 48.8 m/s. This led to damage to an area of 38 m in length, 7.3 m in width, and 2.1 m in depth in the ogee section of this spillway as well as its downstream region. In 1967, the overflow section of the Bratsk Hydroelectric Power Station in the former Soviet Union sustained cavitation damage after 11 consecutive days of overflow. As a consequence, a cavitation pit of 1.2 m in depth and approximately 12 m3 in volume was formed on the surface of the overflow dam.
Mesoscale Analysis of Cavitation and Cavitation Erosion
Cavitation is one of the most common types of damage in hydraulic and hydropower engineering projects. In 1941, the spillway of the Boulder Dam in the U.S. suffered cavitation and developed a deep cavitation pit of 35 m in length, 9.5 m in width, and 13.7 m in depth at the end of its ogee section as a result of the washing away of over 4500 m3 of concrete and rock. In 1967, the spillway of the Yellowtail Dam in the U.S. discharged floodwater at the maximum flow rate of 560 m3/s and the maximum flow velocity of 48.8 m/s. This led to damage to an area of 38 m in length, 7.3 m in width, and 2.1 m in depth in the ogee section of this spillway as well as its downstream region. In 1967, the overflow section of the Bratsk Hydroelectric Power Station in the former Soviet Union sustained cavitation damage after 11 consecutive days of overflow. As a consequence, a cavitation pit of 1.2 m in depth and approximately 12 m3 in volume was formed on the surface of the overflow dam.
Mesoscale Analysis of Cavitation and Cavitation Erosion
Xu, Weilin (author)
Mesoscale Analysis of Hydraulics ; Chapter: 2 ; 7-44
2020-12-04
38 pages
Article/Chapter (Book)
Electronic Resource
English
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