Browsing by Author "Zhou, Lingjiu"
Now showing items 1-6 of 6
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Cavitation effects on the structural resonance of hydraulic turbines: Failure analysis in a real francis turbine runner
(2018-09-03)
Article
Open AccessWhen discussing potential resonances in hydraulic turbine runners, cavitation effects are usually neglected. Nevertheless, recent studies have experimentally proved, that large cavitation volumes in the proximity of flexible ... -
Failure investigation of a Francis turbine under the cavitation conditions
(2016)
Conference report
Open AccessAcoustic-Structural coupling methodology has been used to numerically investigate the failure of a Francis turbine runner that broke down within one day of operation. The goal of the work has been to determine the feasibility ... -
Numerical evaluation of cavitation void ratio significance on hydrofoil dynamic response
(Institute of Physics (IOP), 2015)
Conference report
Open AccessThe added mass effects on a NACA0009 hydrofoil under cavitation conditions determined in a cavitation tunnel have been numerically simulated using finite element method (FEM). Based on the validated model, the effects of ... -
Numerical investigation into the influence on hydrofoil vibrations of water tunnel test section acoustic modes
(2019-06-17)
Article
Restricted access - publisher's policyHigh-speed water tunnels are typically used to investigate the single-phase and two-phase flows around hydrofoils for hydraulic machinery applications but their dynamic behavior is not usually evaluated. The modal analysis ... -
Numerical investigation of the cavitation effect on natural frequencies of a hydrofoil
(2016)
Conference report
Open AccessThe added mass effects on a NACA0009 hydrofoil under cavitation conditions determined in a cavitation tunnel have been numerically simulated using finite element method (FEM). Based on the validated model, the effects of ... -
Numerical simulation of added mass effects on a hydrofoil in cavitating flow using acoustic FSI
(2016-11-14)
Article
Restricted access - publisher's policyA fluid-structure interaction system has been solved using the coupled acoustic structural finite element method to simplify the cavitating flow conditions around a hydrofoil. The modes of vibration and the added mass ...
