Wakes and secondary structures past stator wheel in test turbine VT-400 observed by PIV

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dc.contributor.authorDuda, Daniel
dc.contributor.authorKlimko, Marek
dc.contributor.authorMilčák, Petr
dc.contributor.authorJeřábek, Matěj
dc.contributor.authorUruba, Václav
dc.contributor.authorYanovych, Vitalii
dc.contributor.authorŽitek, Pavel
dc.date.accessioned2025-06-20T08:56:02Z
dc.date.available2025-06-20T08:56:02Z
dc.date.issued2024
dc.date.updated2025-06-20T08:56:02Z
dc.description.abstractFlow inside the axial test turbine VT-400 is measured by using a standard methodology of Particle Image Velocimetry (PIV). The studied area lies between the stator and rotor wheel in meridional plane. This area covers both: the regular flow near hub and the endwall secondary structures as well. Regular structure of wakes and jets past stator blades is observed in terms of mean velocities and turbulence intensity. The fluctuations are close to isotropy and the energy distribution across length-scales exhibits almost Kolmogorov scaling. Near the hub, we observe secondary vortices. Despite the positive radial ejections in that regions, these secondary vortices drift towards the hub, they dissipate energy and circulation and their core grows in size.en
dc.format13
dc.identifier.document-number001172246600001
dc.identifier.doi10.1016/j.euromechflu.2024.01.008
dc.identifier.issn0997-7546
dc.identifier.obd43942909
dc.identifier.orcidDuda, Daniel 0000-0003-4883-3127
dc.identifier.orcidKlimko, Marek 0000-0002-2585-8308
dc.identifier.orcidJeřábek, Matěj 0000-0001-8040-2138
dc.identifier.orcidUruba, Václav 0000-0002-7457-9145
dc.identifier.orcidYanovych, Vitalii 0000-0002-8152-7124
dc.identifier.orcidŽitek, Pavel 0000-0002-8766-4015
dc.identifier.urihttp://hdl.handle.net/11025/61622
dc.language.isoen
dc.project.IDSGS-2023-025
dc.project.IDSGS-2022-023
dc.relation.ispartofseriesEuropean Journal of Mechanics - B/Fluids
dc.rights.accessA
dc.subjectparticle image velocimetryen
dc.subjectsecondary vorticesen
dc.subjectstator wakeen
dc.subjectturbineen
dc.subjectvortex identification algorithmen
dc.titleWakes and secondary structures past stator wheel in test turbine VT-400 observed by PIVen
dc.typeČlánek v databázi WoS (Jimp)
dc.typeČLÁNEK
dc.type.statusPublished Version
local.files.count1*
local.files.size4516639*
local.has.filesyes*
local.identifier.eid2-s2.0-85183457748

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