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dc.contributor.authorVinnes, Magnus Kyrkjebø
dc.contributor.authorWorth, Nicholas Alexander
dc.contributor.authorSegalini, Antonio
dc.contributor.authorHearst, Robert Jason
dc.date.accessioned2023-09-08T07:20:55Z
dc.date.available2023-09-08T07:20:55Z
dc.date.created2023-08-14T09:14:54Z
dc.date.issued2023
dc.identifier.issn1095-4244
dc.identifier.urihttps://hdl.handle.net/11250/3088089
dc.description.abstractWith the increasing demand for wind energy, it is important to be able to understand and predict the available wind resources. To that end, the present wind tunnel study addresses the flow in the induction and entrance region of wind farms through particle image velocimetry, with focus on differences between actuator disks and two-bladed rotating wind turbine models. Both staggered and aligned farm layouts are examined for three different incoming wind directions. For each layout, 69 disks or turbines are used, and the field of view ranges from 12 rotor diameters upstream of the farms to 8 diameters downstream of the first row. The results show that the induction, or blockage effect, is higher for the disks, even though the thrust (or drag) coefficient is the same. In contrast, the wake is stronger downstream of the turbines. The orientation and layout of the farm do not have a major impact on the results. Modal decomposition of the flow shows that the flow structure similarity between the disk and turbines improves downstream of the second row of wake generating objects, indicating that the substitution of wind turbines by actuator disks is more appropriate for wind farms than for the investigation of single wakes.en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleThe flow in the induction and entrance regions of lab-scale wind farmsen_US
dc.title.alternativeThe flow in the induction and entrance regions of lab-scale wind farmsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.journalWind Energyen_US
dc.identifier.doi10.1002/we.2855
dc.identifier.cristin2166624
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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