Effect of Geometric Uncertainties on the Aerodynamic Characteristic of Offshore Wind Turbine Blades

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dc.identifier.uri http://dx.doi.org/10.15488/411
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/434
dc.contributor.author Ernst, Benedikt
dc.contributor.author Schmitt, Henning
dc.contributor.author Seume, Jörg R.
dc.date.accessioned 2016-08-12T08:59:24Z
dc.date.available 2016-08-12T08:59:24Z
dc.date.issued 2014
dc.identifier.citation Ernst, Benedikt; Schmitt, Henning; Seume, Joerg R.: Effect of Geometric Uncertainties on the Aerodynamic Characteristic of Offshore Wind Turbine Blades. In: Journal of Physics Conference Series 534 (2014) , 12033. DOI: http://dx.doi.org/10.1088/1742-6596/555/1/012033
dc.description.abstract Offshore wind turbines operate in a complex unsteady flow environment which causes unsteady aerodynamic loads. The unsteady flow environment is characterized by a high degree of uncertainty. In addition, geometry variations and material imperfections also cause uncertainties in the design process. Probabilistic design methods consider these uncertainties in order to reach acceptable reliability and safety levels for offshore wind turbines. Variations of the rotor blade geometry influence the aerodynamic loads which also affect the reliability of other wind turbine components. Therefore, the present paper is dealing with geometric uncertainties of the rotor blades. These can arise from manufacturing tolerances and operational wear of the blades. First, the effect of geometry variations of wind turbine airfoils on the lift and drag coefficients are investigated using a Latin hypercube sampling. Then, the resulting effects on the performance and the blade loads of an offshore wind turbine are analyzed. The variations of the airfoil geometry lead to a significant scatter of the lift and drag coefficients which also affects the damage-equivalent flapwise bending moments. In contrast to that, the effects on the power and the annual energy production are almost negligible with regard to the assumptions made. eng
dc.description.sponsorship Ministry for Science and Culture in Lower Saxony/ForWind
dc.language.iso eng
dc.publisher Bristol : IOP Publishing Ltd.
dc.relation.ispartof 4th Scientific Conference on Science of Making Torque from Wind, October 09-11, 2012, Oldenburg, Germany
dc.relation.ispartofseries Journal of Physics Conference Series 534 (2014)
dc.rights CC BY 3.0
dc.rights.uri https://creativecommons.org/licenses/by/3.0/de/
dc.subject design eng
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.title Effect of Geometric Uncertainties on the Aerodynamic Characteristic of Offshore Wind Turbine Blades
dc.type article
dc.type conferenceObject
dc.type Text
dc.relation.essn 1742-6596
dc.relation.issn 1742-6588
dc.relation.doi http://dx.doi.org/10.1088/1742-6596/555/1/012033
dc.bibliographicCitation.volume 555
dc.bibliographicCitation.firstPage 12033
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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