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Advances in Science and Technology of Water Resources. 2021, (01) Core

Research progress of incipient cavitation number and its scale effects in hydraulic structuresChinese Full Text

ZHENG Xueyu;WU Shiqiang;YANG Jiaxiu;Power China Guiyang Engineering Corporation Limited;State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University;State Key Laboratory of Hydrology-Water Resources and Hydropower Engineering, Nanjing Hydraulic Research Institute;

Abstract: Anti erosion design is usually involved in the hydraulic design of hydraulic structures. It is generally stipulated that the anti-erosion design should be carried out in the area with cavitation number σ ＜ 0.3 or with the flow velocity greater than 15 m/s. The initial cavitation number is different in different parts of hydraulic structures. The value is analyzed not only through theoretical calculation, but also through pressure reduction model tests in which scale effect inevitably exists. The... More
Keywords：

hydraulic structure; incipient cavitation; cavitation erosion; scale effects; criteria;

  • Series：

    (C) Architecture/ Energy/ Traffic/ Electromechanics, etc; (A) Mathematics/ Physics/ Mechanics/ Astronomy

  • Subject：

    Geophysics; Hydraulic and Hydropower Engineering

  • Classification Code：

    TV131.32

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