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The upstream flow of a wind turbine: blockage effect
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0002-1146-3241
2011 (English)In: Wind Energy, ISSN 1095-4244, E-ISSN 1099-1824, Vol. 14, no 5, 691-697 p.Article in journal (Refereed) Published
Abstract [en]

The flow upstream a wind turbine is studied in order to investigate blockage effects. We use rotating wind turbine models in a wind tunnel, where velocity measurements have been made both with hot-wire anemometry up to approximately 4.5 diameters (D) upstream the turbine, as well as laser particle image velocimetry measurements close to the turbine rotor. Also, numerical simulations have been carried out by means of a finite volume code. The measurements show, among other things, that the flow is affected more than 3 D upstream the rotor plane.

Place, publisher, year, edition, pages
2011. Vol. 14, no 5, 691-697 p.
Keyword [en]
upstream flow, blockage effect, power curve measurements
National Category
Mechanical Engineering
URN: urn:nbn:se:kth:diva-38968DOI: 10.1002/we.451ISI: 000293740500006ScopusID: 2-s2.0-79960784956OAI: diva2:438790
Available from: 2011-09-05 Created: 2011-09-05 Last updated: 2011-09-05Bibliographically approved

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Alfredsson, P. Henrik
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MechanicsLinné Flow Center, FLOW
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