One-Dimensional Modeling of Rotor Stator Interaction in Francis Pump-Turbine

A one-dimensional hydroacoustic model is set up to perform the numerical simulation of the rotor-stator interaction of a Francis pump-turbine scaled model. The numerical results enable to identify both rotating diametrical modes in the vaneless gap between the 20 guide vanes interacting with the 9 rotating impeller blades and the standing waves in the spiral casing. Moreover, the simulations enlighten the interaction between these rotating diametrical modes and the standing waves. Finally, the parametric study of the influence of the guide vane thickness, the wave speed and rotational speed emphasizes the predominant role of the eigen frequencies of the hydraulic system.

One-Dimensional Modeling of Rotor Stator Interaction in Francis Pump-Turbine

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Study of flexible operating conditions in variable-speed hydraulic turbines : advanced models and experimental validation

On the prediction of the induced damage by the start-up sequence of Francis turbines: On operational resilience framework

Twenty years of irrigation acclimation is driven by denser canopies and not by plasticity in twig- and needle-level hydraulics in a Pinus sylvestris forest