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dc.contributor.authorGuardo Zabaleta, Alfredo de Jesús
dc.contributor.authorFontanals García, Alfred
dc.contributor.authorEgusquiza Montagut, Mònica
dc.contributor.authorValero Ferrando, Ma. del Carmen
dc.contributor.authorEgusquiza Estévez, Eduard
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.date.accessioned2021-11-18T11:48:39Z
dc.date.available2021-11-18T11:48:39Z
dc.date.issued2021-10-14
dc.identifier.citationGuardo, A. [et al.]. Characterization of the effects of ingested bodies on the rotor–stator interaction of hydraulic turbines. "Energies", 14 Octubre 2021, vol. 14, núm. 20, p. 1-16.
dc.identifier.issn1996-1073
dc.identifier.urihttp://hdl.handle.net/2117/356668
dc.description.abstractRunner and distributor blockages in hydraulic turbines occur due to the ingestion of external bodies such as rocks or logs. These obstructions can change the amplitude and uniformity of the pressure pulsations in the machine, creating large unbalanced forces that can lead to reduced efficiency, increased vibration and mechanical damage. In this paper, the effects of obstructions caused by ingested bodies in the runner and the distributor of a pump turbine on its internal pressure pulsation were investigated by means of computational fluid dynamics. A numerical model of an unobstructed pump turbine is presented and validated against experimental data. Several cases of runner or distributor blockage were studied, and their RSI pressure pulsations were recorded and analyzed at different locations. The results obtained allow us to characterize the effect of these blockages on the machine’s RSI, which can be helpful for the correct diagnosis of these types of damage.
dc.format.extent16 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Energies
dc.subject.lcshTurbine industry
dc.subject.lcshComputational fluid dynamics
dc.subject.otherTurbine failure
dc.subject.otherIngested bodies
dc.subject.otherRunner blockage
dc.subject.otherRotor–stator interaction
dc.subject.otherVibration
dc.subject.otherComputational fluid dynamics
dc.titleCharacterization of the effects of ingested bodies on the rotor–stator interaction of hydraulic turbines
dc.typeArticle
dc.subject.lemacDinàmica de fluids computacional
dc.contributor.groupUniversitat Politècnica de Catalunya. CDIF - Centre de Diagnòstic Industrial i Fluidodinàmica
dc.contributor.groupUniversitat Politècnica de Catalunya. FLUIDS - Enginyeria de Fluids
dc.identifier.doi10.3390/en14206669
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.mdpi.com/1996-1073/14/20/6669
dc.rights.accessOpen Access
local.identifier.drac32113472
dc.description.versionPostprint (published version)
local.citation.authorGuardo, A.; Fontanals, A.; Egusquiza, M.; Valero, M.; Egusquiza, E.
local.citation.publicationNameEnergies
local.citation.volume14
local.citation.number20
local.citation.startingPage1
local.citation.endingPage16


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Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain