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dc.contributor.authorAresti, Lazaros
dc.contributor.authorTutar, Mustafa
dc.contributor.authorChen, Yong
dc.contributor.authorCalay, Rajnish
dc.date.accessioned2014-01-09T14:30:35Z
dc.date.available2014-01-09T14:30:35Z
dc.date.issued2013-09
dc.identifier.citationAresti , L , Tutar , M , Chen , Y & Calay , R 2013 , ' Computational Study of a Small Scale Vertical Axis Wind Turbine (VAWT) : Comparative Performance of Various Turbulence Models ' , Wind and Structures , vol. 17 , no. 6 , pp. 647-670 . https://doi.org/10.12989/was.2013.17.6.647
dc.identifier.issn1226-6116
dc.identifier.otherPURE: 2268660
dc.identifier.otherPURE UUID: b684b90d-6a97-4826-86eb-f98982b2bf65
dc.identifier.urihttp://hdl.handle.net/2299/12509
dc.description.abstractThe paper presents a numerical approach to study of fluid flow characteristics and to predict performance of wind turbines. The numerical model is based on Finite-volume method (FVM) discretization of unsteady Reynolds-averaged Navier- Stokes (URANS) equations. The movement of turbine blades is modeled using moving mesh technique. The turbulence is modeled using commonly used turbulence models: Renormalization Group (RNG) k- turbulence model and the standard k- and k- turbulence model. The model is validated with experimental data over a large range of tip-speed to wind ratio (TSR) and blade pitch angles. In order to demonstrate the use numerical method as a tool for designing wind turbines, two dimensional (2-D) and three-dimensional (3-D) simulations are carried to study the flow through a small scale Darrieus type H-rotor Vertical Axis Wind Turbine (VAWT). The flows predictions are used to determine the performance of the turbine. The turbine consists of 3- symmetrical NACA0022 blades. A number of simulations are performed for a range of approaching angles and wind speeds. This numerical study highlighted the concerns with the self-starting capabilities of the present VAWT turbine. However results also indicated that self-starting capabilities of the turbine can be increased when the mounted angle of attack of the blades is increased. The 2-D simulations using the presented model can successfully be used at preliminary stage of turbine design to to compare performance of the turbine for different design and operating parameters, whereas 3-D studies are preferred for the final design.en
dc.format.extent24
dc.language.isoeng
dc.relation.ispartofWind and Structures
dc.subjectWind turbine
dc.subjectturbulence models;
dc.subjectvertical axis wind turbine (VAWT)
dc.subjectcomputational fluid dynamics (CFD)
dc.titleComputational Study of a Small Scale Vertical Axis Wind Turbine (VAWT) : Comparative Performance of Various Turbulence Modelsen
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionSustainable Energy Technologies
dc.contributor.institutionSchool of Engineering and Technology
dc.contributor.institutionScience & Technology Research Institute
dc.description.statusPeer reviewed
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.12989/was.2013.17.6.647
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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