CUED Publications database

Investigation of air-core vortex at hydraulic intakes

Wang, Y-K and Jiang, C-B and Liang, D-F (2010) Investigation of air-core vortex at hydraulic intakes. Journal of Hydrodynamics, 22. pp. 673-678. ISSN 1001-6058

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Abstract

Hydrodynamic properties of the surface vortex have been investigated. Based on the Navier-Stokes equations, three sets of the new formulations for the tangential velocity distributions are derived, and verified against the experimental measurements in the literature. It is shown that one modification greatly improves the agreement with the experimental data. Physical model experiments were carried out to study the intake vortex related to the Xiluodu hydropower project. The velocity fields were measured using the Particle Tracking Velocimetry (PTV) technique. The proposed equation for tangential velocity distribution is applied to the Xiluodu project with the solid boundary being considered by the method of images. Good agreement has been observed between the formula prediction and the experimental observation. © 2010 Publishing House for Journal of Hydrodynamics.

Item Type: Article
Uncontrolled Keywords: Air-core vortex Axisymmetric flow Hydraulic intake PTV
Subjects: UNSPECIFIED
Divisions: Div A > Fluid Mechanics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:59
Last Modified: 30 Nov 2014 21:46
DOI: 10.1016/S1001-6058(10)60017-0