CUED Publications database

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

Wang, Y and Jiang, C and Liang, D (2011) Study on the critical submergence of surface vortices and the design of anti-vortex intakes. Science China Technological Sciences, 54. pp. 799-804. ISSN 1674-7321

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Abstract

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. © 2011 Science China Press and Springer-Verlag Berlin Heidelberg.

Item Type: Article
Uncontrolled Keywords: critical spherical sink surface critical submergence physical model experiment surface vortex tunnel intake
Subjects: UNSPECIFIED
Divisions: Div A > Fluid Mechanics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:31
Last Modified: 08 Dec 2014 21:45
DOI: 10.1007/s11431-011-4311-6