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dc.contributor.authorFernandez, Unai
dc.contributor.authorVelte, Clara
dc.contributor.authorRethore, Pierre Elouan
dc.contributor.authorSorensen, Niels N.
dc.contributor.authorEgusquiza Estévez, Eduard
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.date.accessioned2018-12-12T13:07:51Z
dc.date.available2018-12-12T13:07:51Z
dc.date.issued2016-06
dc.identifier.citationFernandez, U., Velte, C., Rethore , P., Sorensen, N., Egusquiza, E. Testing of self-similarity and helical symmetry in vortex generator flow simulations. "Wind energy", Juny 2016, vol. 19, núm. 6, p. 1043-1052.
dc.identifier.issn1095-4244
dc.identifier.urihttp://hdl.handle.net/2117/125718
dc.description.abstractVortex generators (VGs) are used increasingly by the wind turbine industry as flow control devices to improve rotor blade performance. According to experimental observations, the vortices generated by VGs have previously been observed to be self-similar for both the axial (uz) and azimuthal (u¿) velocity components. Furthermore, the measured vortices have been observed to obey the criteria for helical symmetry. These are powerful results, as it reduces the highly complex 3-D flow to merely four parameters and therefore significantly facilitates the modeling of this type of flow, which in a larger perspective can assist in parametric studies to increase the total power output of wind turbines. In this study, corresponding computer simulations using Reynolds-averaged Navier-Stokes equations have been carried out and compared with the experimental observations. The main objective is to investigate how well the simulations can reproduce these aspects of the physics of the flow, i.e., investigate if the same analytical model can be applied and therefore significantly facilitate the modeling of this type of flow, which in a larger perspective can assist in parametric studies to increase the total power output of wind turbines. This is especially interesting since these types of flows are notoriously difficult for the turbulence models to predict correctly. Using this model, parametric studies can be significantly reduced, and moreover, reliable simulations can substantially reduce the costs of the parametric studies themselves.
dc.format.extent10 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids::Màquines hidràuliques i de fluids
dc.subject.lcshWind turbine
dc.subject.otherVortex generatot
dc.subject.otherWake
dc.subject.otherCFD
dc.subject.otherComputational fluid dynamics
dc.subject.otherAerodynamics
dc.subject.otherWind turbine
dc.titleTesting of self-similarity and helical symmetry in vortex generator flow simulations
dc.typeArticle
dc.subject.lemacMàquines hidràuliques -- Programes d'ordinador
dc.contributor.groupUniversitat Politècnica de Catalunya. CDIF - Centre de Diagnòstic Industrial i Fluidodinàmica
dc.identifier.doi10.1002/we.1882
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1002/we.1882/abstract
dc.rights.accessOpen Access
local.identifier.drac17418402
dc.description.versionPostprint (published version)
local.citation.authorFernandez, U.; Velte, C.; Rethore, P.; Sorensen, N.; Egusquiza, E.
local.citation.publicationNameWind energy
local.citation.volume19
local.citation.number6
local.citation.startingPage1043
local.citation.endingPage1052


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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