Author(s): Eric Gaudin; Eric Janson; Regiane Fortes-Patella

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Keywords: No Keywords

Abstract: The experimental methodology used to characterize a Francis turbine relies on parietal piezoelectric pressure transducers and micro-deformation gauges. These techniques were implemented on a Francis turbine installed at the CREMHyG laboratory (Grenoble Hydraulic Machinery Research and Testing Centre). This study focuses on the vortex cavitation rope and draft tube swirl, which are key factors limiting operational stability. Preliminary results obtained at the Best Efϐiciency Point (BEP) and under part-load cavitation conditions are presented and analyzed. Conclusions are drawn based on the comparison between parietal sensor data and non-intrusive gauge measurements, contributing to the validation and enhancement of the detection methods.

DOI: https://doi.org/10.1088/1755-1315/1561/1/012011

Year: 2025