Experimental investigations on the wake interferences of multiple wind turbines

dc.contributor.advisor Hui Hu
dc.contributor.author Ozbay, Ahmet
dc.contributor.department Aerospace Engineering
dc.date 2018-08-11T10:41:35.000
dc.date.accessioned 2020-06-30T02:42:36Z
dc.date.available 2020-06-30T02:42:36Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2012
dc.date.embargo 2013-06-05
dc.date.issued 2012-01-01
dc.description.abstract <p>In this study, a wind tunnel investigation was carried out to investigate the wake interferences of multiple wind turbines sited over flat and complex (2D-Ridge) terrains in order to understand the physics behind the wind farm design optimization for higher power yield and better durability. The experiments were conducted in Aerodynamic/Atmospheric Boundary Layer (AABL) Wind Tunnel with an array of model wind turbines over flat and complex terrains with non-homogenous surface winds. The effects of the turbine spacing and the wind farm layout on the wake interferences were investigated among multiple wind turbines sited over flat and complex (2D-Ridge) terrains.</p> <p>The characteristics of the surface winds (mean velocity and turbulence profiles) were quantified by using cobra probe in order to elucidate the interaction between atmospheric boundary layer and wind farms. The detailed flow field measurements were correlated with the dynamic wind loads as well as the power outputs of the wind turbine models. Thus, different wind farm layouts (aligned and staggered) were analyzed in terms of their performance.</p> <p>The effects of the characteristics of the incoming atmospheric boundary layer (mean velocity and turbulence intensity profiles) on the performance of the individual wind turbines and on the array efficiency of different wind farm layouts were also investigated.</p> <p>The results obtained from the present study shed light on how complex dynamics of the wind farms could be affected by different factors such as the wind farm configuration, turbine spacing, incoming flow character, topography of the terrain (complex terrains) and operating conditions of the upstream turbines.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/12427/
dc.identifier.articleid 3434
dc.identifier.contextkey 3437795
dc.identifier.doi https://doi.org/10.31274/etd-180810-1921
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/12427
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/26616
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/12427/Ozbay_iastate_0097M_12775.pdf|||Fri Jan 14 19:21:31 UTC 2022
dc.subject.disciplines Aerospace Engineering
dc.subject.disciplines Engineering
dc.subject.keywords array efficiency
dc.subject.keywords terrain effects
dc.subject.keywords turbine layout and spacing
dc.subject.keywords Turbulence
dc.subject.keywords wake interference
dc.subject.keywords Wind-tunnel experiment
dc.title Experimental investigations on the wake interferences of multiple wind turbines
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d
thesis.degree.level thesis
thesis.degree.name Master of Science
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