| 明流隧洞反弧段水力及空化特性研究 |
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| 引用本文： | 杨永森,吴持恭.明流隧洞反弧段水力及空化特性研究[J].四川大学学报(工程科学版),1991(3). |
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| 作者姓名： | 杨永森 吴持恭 |
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| 作者单位： | 成都科技大学水利科学研究所，成都科技大学水利科学研究所 |
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| 摘 要： | 明流隧洞反弧段是最容易发生空蚀的部位。本文根据势流理论,运用解析函数的 Riemann—Hilbert 混合边值问题理论,导出了计算二维明流泄洪洞反弧段水力特性的边界积分方程,对反弧段的时均压强,时均流速及水深的分布进行了计算。结合对曲边边界层动量积方程的分析,探讨了反弧末端易于发生空蚀破坏的原因。
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| 关 键 词： | 反弧段 空蚀 边界积分方程 |
Hydrauic and Cavitating Characteristics of the Invent in Two Dimensional Open Channel Flow |
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| Yang yongsen Wu chigong.Hydrauic and Cavitating Characteristics of the Invent in Two Dimensional Open Channel Flow[J].Journal of Sichuan University (Engineering Science Edition),1991(3). |
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| Authors: | Yang yongsen Wu chigong |
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| Affiliation: | Yang yongsen Wu chigong |
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| Abstract: | The place downstream of bucket in an open channel is easily subjected to cavitation damages.In this paper,the boundary-integral eguations for calcul ating the hydraulic chracteristics of the invent are derived by using Riemann- Hilbert mixed boundary value problem technique of the analyical function on he assumption of potential flow.The values of pressnre and velocity and the de- pth are calculated whichare agreed well with those measured.And byanalysing tthe momentum integral equationfor curved boundary layer flows,the reason why the place downstream of bucket bucke is easily subjected to cavitation damages is further investigated. |
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| Keywords: | boundary-integral equation channel bucket cavitation damage |
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