Failure investigation of a Francis turbine under the cavitation conditions

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.contributor	Universitat Politècnica de Catalunya. CDIF - Centre de Diagnòstic Industrial i Fluidodinàmica
dc.contributor.author	Liu, Xin
dc.contributor.author	Wang, Zhengwei
dc.contributor.author	Zhou, Lingjiu
dc.contributor.author	Escaler Puigoriol, Francesc Xavier
dc.date	2016
dc.identifier.citation	Liu, X., Wang, Z., Zhou, L., Escaler, X. Failure investigation of a Francis turbine under the cavitation conditions. A: International Symposium on Transport Phenomena and Dynamics of Rotating Machinery. "Proceedings of the 16th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery". Honolulu: 2016, p. 1-4.
dc.identifier.uri	http://hdl.handle.net/2117/87268
dc.language.iso	eng
dc.relation	http://isromac-isimet.univ-lille1.fr/upload_dir/finalpaper/258.ISROMAC-258.pdf
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria mecànica
dc.subject	Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
dc.subject	Cavitation
dc.subject	Turbines
dc.subject	Turbine failures
dc.subject	Acoustic FSI
dc.subject	Cavitation
dc.subject	Resonance
dc.subject	Cavitació
dc.subject	Turbines
dc.title	Failure investigation of a Francis turbine under the cavitation conditions
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	Acoustic-Structural coupling methodology has been used to numerically investigate the failure of a Francis turbine runner that broke down within one day of operation. The goal of the work has been to determine the feasibility of a resonance condition under cavitating flow conditions. The obtained results prove that the presence of large vapor cavities increase the natural frequencies of the diametrical modes of vibration in comparison with the pure water condition. In particular, a possible tuning between the hydrodynamic excitation and the 4ND mode has been found.

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