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Application of the Townsend-George wake theory to field measurements of wind turbine wakes
LHEEA (CNRS) - Centrale Nantes, 1 Rue de la Noë, 44300 Nantes, France.ORCID iD: 0000-0002-3787-3118
LHEEA (CNRS) - Centrale Nantes, 1 Rue de la Noë, 44300 Nantes, France.
Institute of Physics and For Wind – University of Oldenburg, Küpkersweg 70, 26129 Oldenburg, Germany.
LHEEA (CNRS) - Centrale Nantes, 1 Rue de la Noë, 44300 Nantes, France.
2021 (English)Conference paper, Published paper (Refereed)
Abstract [en]

As wind turbines are usually clustered in wind farms, knowledge of the evolution of the wind turbine wakes is important because downstream turbines will be exposed to them, causing higher loads and maintenance times. For that reason, wind turbine wakes have been studied intensively and different engineering wake models were derived. However, none of them is constructed from a few basic and robust assumptions, while such a formalism already exists for the axisymmetric turbulent wake. Therefore, we will apply these models to data obtained in a wind farm using a scanning LiDAR. The wakes of two wind turbines are analyzed in four different wind directions chosen so that their wakes will have different degrees of interaction. The axisymmetric wake models are found to perform better than the Jensen wake model, and the main source of improvement is shown to be the presence of a virtual origin. Indeed, a virtual origin is shown to also improve the Jensen wake model significantly. Overall, our results indicate that a view from classical axisymmetric wake theory can help to improve the understanding of the evolution of wind turbine wakes in the atmospheric boundary layer.

Place, publisher, year, edition, pages
IOP Publishing , 2021. Vol. 1934, no 1, p. 012004-012004
Series
Journal of Physics: Conference Series, ISSN 1742-6596 ; 1934
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-368166DOI: 10.1088/1742-6596/1934/1/012004ISI: 000712011500004Scopus ID: 2-s2.0-85108740013OAI: oai:DiVA.org:kth-368166DiVA, id: diva2:1987469
Conference
Wake Conference 2021, 15-17 June 2021, Visby, Sweden
Note

QC 20250806

Available from: 2025-08-06 Created: 2025-08-06 Last updated: 2025-08-06Bibliographically approved

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Neunaber, Ingrid

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf