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Airfoil data sensit...
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Nilsson, KarlUppsala universitet,KTH,Stabilitet, Transition, Kontroll,Linné Flow Center, FLOW,Institutionen för geovetenskaper
(author)
Airfoil data sensitivity analysis for actuator disc simulations used in wind turbine applications
- Article/chapterEnglish2014
Publisher, publication year, extent ...
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2014-06-16
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IOP Publishing,2014
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-166657
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-166657URI
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https://doi.org/10.1088/1742-6596/524/1/012135DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-241152URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:kon swepub-publicationtype
Notes
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QC 20150519
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To analyse the sensitivity of blade geometry and airfoil characteristics on the prediction of performance characteristics of wind farms, large-eddy simulations using an actuator disc (ACD) method are performed for three different blade/airfoil configurations. The aim of the study is to determine how the mean characteristics of wake flow, mean power production and thrust depend on the choice of airfoil data and blade geometry. In order to simulate realistic conditions, pre-generated turbulence and wind shear are imposed in the computational domain. Using three different turbulence intensities and varying the spacing between the turbines, the flow around 4-8 aligned turbines is simulated. The analysis is based on normalized mean streamwise velocity, turbulence intensity, relative mean power production and thrust. From the computations it can be concluded that the actual airfoil characteristics and blade geometry only are of importance at very low inflow turbulence. At realistic turbulence conditions for an atmospheric boundary layer the specific blade characteristics play an minor role on power performance and the resulting wake characteristics. The results therefore give a hint that the choice of airfoil data in ACD simulations is not crucial if the intention of the simulations is to compute mean wake characteristics using a turbulent inflow.
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Breton, Simon-PhilippeUppsala universitet,Institutionen för geovetenskaper(Swepub:uu)simbr581
(author)
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Sørensen, Jens NørkærUppsala universitet,Institutionen för geovetenskaper(Swepub:uu)jenno927
(author)
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Ivanell, StefanUppsala universitet,KTH,Stabilitet, Transition, Kontroll,Linné Flow Center, FLOW,Institutionen för geovetenskaper(Swepub:uu)steiv197
(author)
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KTHStabilitet, Transition, Kontroll
(creator_code:org_t)
Related titles
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In:SCIENCE OF MAKING TORQUE FROM WIND 2014 (TORQUE 2014): IOP Publishing, s. 012135-, s. 012135-
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In:Journal of Physics: Conference Series: IOP Publishing, s. 012135-, s. 012135-1742-6596
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In:Science of Making Torque from Wind: IOP Publishing, s. 012135-, s. 012135-
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