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.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 2015 Dec 3|
|Event||9th International Symposium on Cavitation, CAV 2015 - Lausanne, Switzerland|
Duration: 2015 Dec 6 → 2015 Dec 10
ASJC Scopus subject areas
- Physics and Astronomy(all)