Soledad Le Clainche
New method to capture traveling waves in flow passing a wind turbine
Le Clainche, Soledad; Mao, Xuerui; Vega, Jos� M.
Authors
Xuerui Mao
Jos� M. Vega
Abstract
© 2019 John Wiley & Sons, Ltd. Flow structures in the wake of a wind turbine are analysed by performing spatio-temporal Koopman decomposition (STKD). STKD is a new method to decompose the flow field as a combination of travelling waves and to extract the frequency and wavenumbers (characterizing a specific spatial direction) of the dominant waves. The results indicate that the complex unsteady behaviour of the turbine wake flow is mainly driven by a single wave travelling downstream, combined with smaller amplitude traveling waves representing the flow rotation. This result agrees with the general description of the wake of a wind turbine regarded as the combination of self-sustained oscillations and the development of upstream external noise, which are represented by the dominant traveling wave and the small-magnitude ones, respectively.
Citation
Le Clainche, S., Mao, X., & Vega, J. M. (2019). New method to capture traveling waves in flow passing a wind turbine. Wind Energy, 22(7), 922-931. https://doi.org/10.1002/we.2331
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 11, 2019 |
Online Publication Date | Mar 19, 2019 |
Publication Date | Jul 1, 2019 |
Deposit Date | Nov 18, 2019 |
Publicly Available Date | Mar 28, 2024 |
Journal | Wind Energy |
Print ISSN | 1095-4244 |
Electronic ISSN | 1099-1824 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 22 |
Issue | 7 |
Pages | 922-931 |
DOI | https://doi.org/10.1002/we.2331 |
Keywords | Renewable Energy, Sustainability and the Environment |
Public URL | https://nottingham-repository.worktribe.com/output/3324535 |
Publisher URL | https://onlinelibrary.wiley.com/doi/full/10.1002/we.2331 |
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