Optimization of hydraulic turbine diffuser

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dc.contributor.authorMoravec, Prokopcs
dc.contributor.authorHliník, Jurajcs
dc.contributor.authorRudolf, Pavelcs
dc.coverage.issue1cs
dc.coverage.volume114cs
dc.date.issued2016-03-28cs
dc.description.abstractHydraulic turbine diffuser recovers pressure energy from residual kinetic energy on turbine runner outlet. Efficiency of this process is especially important for high specific speed turbines, where almost 50% of available head is utilized within diffuser. Magnitude of the coefficient of pressure recovery can be significantly influenced by designing its proper shape. Present paper focuses on mathematical shape optimization method coupled with CFD. First method is based on direct search Nelder-Mead algorithm, while the second method employs adjoint solver and morphing. Results obtained with both methods are discussed and their advantages/disadvantages summarized.en
dc.description.abstractHydraulic turbine diffuser recovers pressure energy from residual kinetic energy on turbine runner outlet. Efficiency of this process is especially important for high specific speed turbines, where almost 50% of available head is utilized within diffuser. Magnitude of the coefficient of pressure recovery can be significantly influenced by designing its proper shape. Present paper focuses on mathematical shape optimization method coupled with CFD. First method is based on direct search Nelder-Mead algorithm, while the second method employs adjoint solver and morphing. Results obtained with both methods are discussed and their advantages/disadvantages summarized.en
dc.formattextcs
dc.format.extent1-7cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationEPJ Web of Conferences. 2016, vol. 114, issue 1, p. 1-7.en
dc.identifier.doi10.1051/epjconf/201611402079cs
dc.identifier.issn2100-014Xcs
dc.identifier.orcid0000-0003-2622-7898cs
dc.identifier.other120730cs
dc.identifier.researcheridI-9334-2016cs
dc.identifier.scopus54783227700cs
dc.identifier.urihttp://hdl.handle.net/11012/204244
dc.language.isoencs
dc.publisherEDP Sciencescs
dc.relation.ispartofEPJ Web of Conferencescs
dc.relation.urihttps://www.epj-conferences.org/articles/epjconf/abs/2016/09/epjconf_efm2016_02079/epjconf_efm2016_02079.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.subjectOptimizationen
dc.subjectturbine diffuseren
dc.subjectNelder-Mead algorithmen
dc.subjectadjoint solveren
dc.subjectOptimization
dc.subjectturbine diffuser
dc.subjectNelder-Mead algorithm
dc.subjectadjoint solver
dc.titleOptimization of hydraulic turbine diffuseren
dc.title.alternativeOptimization of hydraulic turbine diffuseren
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-120730en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 14:52:42en
sync.item.modts2025.10.14 09:43:05en
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