Francis turbine draft tube modelling for prediction of pressure fluctuations on prototype

S. Alligné*, C. Landry, A. Favrel, C. Nicolet, F. Avellan

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


The prediction of pressure fluctuations amplitudes on Francis turbine prototype is a challenge for hydro-equipment industry since it is subjected to guarantees to ensure smooth and reliable operation of the hydro units. The European FP7 research project Hyperbole aims to setup a methodology to transpose the pressure fluctuations measured on the reduced scale model to the prototype generating units. This paper presents this methodology which relies on an advanced modelling of the draft tube cavitation flow, and focuses on the transposition to the prototype of the draft tube model parameters identified on the reduced scale model. Different modelling assumptions of the draft tube are considered and their influence on the eigenmodes and the forced response of the system are presented.

Original languageEnglish
Article number012056
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2015 Dec 3
Externally publishedYes
Event9th International Symposium on Cavitation, CAV 2015 - Lausanne, Switzerland
Duration: 2015 Dec 62015 Dec 10

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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