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DC poleHodnotaJazyk
dc.contributor.authorSláma, Václav
dc.contributor.authorRudas, Bartoloměj
dc.contributor.authorIra, Jiří
dc.contributor.authorMacálka, Aleš
dc.contributor.authorEret, Petr
dc.contributor.authorTsymbalyuk, Volodymyr
dc.date.accessioned2019-03-11T11:00:15Z-
dc.date.available2019-03-11T11:00:15Z-
dc.date.issued2018
dc.identifier.citationSLÁMA, V., RUDAS, B., IRA, J., MACÁLKA, A., ERET, P., TSYMBALYUK, V. The Validation of Flutter Prediction in a Linear Cascade of Non-Rigid Turbine Blades. In: Proceedings of ASME Turbo Expo 2018. US: ASME, 2018. s. V07CT36A010, 1-10. ISBN 978-0-7918-5115-9.en
dc.identifier.isbn978-0-7918-5115-9
dc.identifier.uri2-s2.0-85054026953
dc.identifier.urihttp://hdl.handle.net/11025/31276
dc.format10 s.cs
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherASMEen
dc.relation.ispartofseriesProceedings of ASME Turbo Expo 2018en
dc.rightsPlný text je přístupný v rámci univerzity přihlášeným uživatelům.cs
dc.rights© ASMEen
dc.subjectturbinová lopatková kaskádacs
dc.subjectfluttercs
dc.titleThe Validation of Flutter Prediction in a Linear Cascade of Non-Rigid Turbine Bladesen
dc.title.alternativeValidace predikce flutteru na lineární kaskádě ohebných turbinových lopatekcs
dc.typekonferenční příspěvekcs
dc.typeconferenceObjecten
dc.rights.accessrestrictedAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedIn low-pressure steam turbines, aerodynamic and structural design of the last stage blades is critical in determining the power plant efficiency. The development of longer last stage blades which are recently over 1 meter in length is an important task for steam turbine manufactures. The design process involves a flutter analysis of last stage blade tip sections where increased unsteady aerodynamic forces and moments might endanger the blade aerodynamic stability. However, numerical design tools must be validated using measurements in test facilities under various operating conditions. In this work, ANSYS CFX is used for flutter prediction of turbine blade tip sections oscillating in a travelling wave mode. Simulations are compared to experimental results obtained from controlled flutter tests in a wind tunnel with a linear cascade of eight turbine blade profiles made of carbon fibre. Central four blades are flexibly mounted each with two degrees of freedom (i.e. bending and torsion motions). Large deflections of thin blade profiles are accounted for the estimation of unsteady aerodynamic forces and moments. A satisfactory agreement between the simulations and experiments is achieved.en
dc.subject.translatedturbine blade cascadeen
dc.subject.translatedflutteren
dc.identifier.doi10.1115/GT2018-75502
dc.type.statusPeer-revieweden
dc.identifier.document-number457071100051
dc.identifier.obd43925512
dc.project.IDinfo:eu-repo/grantAgreetment/EC/H2020/Flexiturbine/653941cs
Vyskytuje se v kolekcích:Konferenční příspěvky / Conference papers (KKE)
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