Effect of splitter blades on turbine mode of low specific speed pump

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dc.contributor.authorBezdíček, Jiřícs
dc.contributor.authorChabannes, Liliancs
dc.contributor.authorŠtefan, Davidcs
dc.coverage.issue1cs
dc.coverage.volume299cs
dc.date.issued2024-07-04cs
dc.description.abstractThe use of pump in turbine mode is an evolving research field. This article is mainly focused on the influence of splitter blades on the turbine mode of pump exclusively. CFD analysis on low specific speed pump geometry was performed. The geometry of sidewall gaps spaces between the rotor and stator system was also included in the computational model. Flow phenomena were compared with quantification of losses. In this case, entropy production theory was used for loss analysis. The effect of different computational meshes and turbulence models on the low-specific speed machine was also questioned. The numerical approach was used not only to obtain turbine characteristics and evaluate the effect of splitter-blades on the machine, which was main goal of this work but also to describe flow or carry out hydraulic loss analysis and visualise areas of most dominant losses. Volumetric efficiency, hydraulic forces, and influence of flow in sidewall gaps on torque generation were also investigated. The numerical model was validated using experimental data. Probable reasons for the difference between the experiment and simulation were estimated.en
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationEPJ Web of Conferences. 2024, vol. 299, issue 1, p. 1-13.en
dc.identifier.doi10.1051/epjconf/202429901003cs
dc.identifier.issn2100-014Xcs
dc.identifier.orcid0000-0003-4230-5219cs
dc.identifier.other189101cs
dc.identifier.researcheridV-9551-2017cs
dc.identifier.scopus55600674200cs
dc.identifier.urihttp://hdl.handle.net/11012/249955
dc.language.isoencs
dc.publisherEDP Sciencescs
dc.relation.ispartofEPJ Web of Conferencescs
dc.relation.urihttps://www.epj-conferences.org/articles/epjconf/abs/2024/09/epjconf_efm2024_01003/epjconf_efm2024_01003.htmlcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2100-014X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectcentrifugal pump; splitter bladesen
dc.subjectturbine modeen
dc.subjectenthropy productionen
dc.titleEffect of splitter blades on turbine mode of low specific speed pumpen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-189101en
sync.item.dbtypeVAVen
sync.item.insts2025.03.18 15:44:31en
sync.item.modts2025.03.18 09:33:28en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. EÚ-odbor fluidního inženýrství Viktora Kaplanacs
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EÚ-odbor fluidního inženýrství Viktora Kaplana