Predicting Cavitation in Francis Turbines on the Basis of Scale Model Testing

Predicting Cavitation in Francis Turbines on the Basis of Scale Model Testing

The present article describes an ambitious research project being conducted jointly by EDF, HQ and EPFL, with the aim of developing a method suitable for industrial use for predicting cavitation in Francis turbines on the basis of scale model testing. Results concerning the notion of erosion aggress...

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Hauptverfasser: Laperrousaz, E, Dorey, J M, Rigg, J P, Simoneau, Raynald, Avellan, François, Henry, Pierre
Format: Web Resource
Sprache:eng
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Zusammenfassung:The present article describes an ambitious research project being conducted jointly by EDF, HQ and EPFL, with the aim of developing a method suitable for industrial use for predicting cavitation in Francis turbines on the basis of scale model testing. Results concerning the notion of erosion aggressiveness, methods to measure it -accelerometer, pressure fluctuations and pitting measurements -, the correlation between measurements on models and erosion on prototypes, and validation testing done on an actual machine and its model are presented.