Study on the critical submergence of surface vortices and the design of anti-vortex intakes

被引：6
|
作者：
Wang YingKui [1 ]
Jiang ChunBo [1 ]
Liang DongFang [2 ]
机构：
[1] Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China
[2] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England
来源：
SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2011年 / 54卷 / 04期
关键词：
critical submergence; critical spherical sink surface; surface vortex; tunnel intake; physical model experiment;
D O I：
10.1007/s11431-011-4311-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Surface vortex behavior in front of the tunnel intake was investigated in this paper. The critical submergence of vortex was discussed based on the concept of 'critical spherical sink surface' (CSSS). The vortex formation and evolution at the tunnel intake were analyzed based on the theory of CSSS considering the effect of circulation. A theory was proposed to explain the surface vortex. The theoretical development was verified by the physical model experiments of Xiluodu hydropower station. The radial velocity and vortex circulation were considered as the main factors that influence the formation and evolution of surface vortex. Finally, an anti-vortex intake configuration was proposed to weaken the air-core vortex in front of the tunnel intakes of the hydraulic structures.
引用
收藏
页码：799 / 804
页数：6
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