Show simple item record

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.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.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.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
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.otherComputational fluid dynamics
dc.titleCharacterization of the effects of ingested bodies on the rotor–stator interaction of hydraulic turbines
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.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorGuardo, A.; Fontanals, A.; Egusquiza, M.; Valero, M.; Egusquiza, E.

Files in this item


This item appears in the following Collection(s)

Show simple item record

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