Englberger, Antonia and Lundquist, Julie K. (2020) How does inflow veer affect the veer of a wind-turbine wake? Journal of Physics: Conference Series, 1452, 012068. Institute of Physics (IOP) Publishing. doi: 10.1088/1742-6596/1452/1/012068. ISSN 1742-6588.
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Official URL: https://doi.org/10.1088%2F1742-6596%2F1452%2F1%2F012068
Abstract
Stably stratified flow conditions often exhibit wind veer, or a change of wind direction with height. When wind turbines experience this veered flow, the resulting wake structure tends to exhibit a stretching into an ellipsoid, rather than a symmetric shape or a curled shape. Observational studies suggest that the magnitude of wake veer is less than the veer of the inflow, whereas large-eddy simulations with actuator disk models and actuator line models suggest a range of relationships between inflow veer and wake veer. Here we present a series of large-eddy simulations with a range of veer shapes, a range of magnitudes of veer, a range of wind speeds, and both rotational directions of the wind-turbine rotor investigating the effect on the wake deflection angle. These results can guide the application of wake steering in stably stratified flow.
Item URL in elib: | https://elib.dlr.de/137846/ | |||||||||
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Document Type: | Article | |||||||||
Title: | How does inflow veer affect the veer of a wind-turbine wake? | |||||||||
Authors: |
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Date: | 2020 | |||||||||
Journal or Publication Title: | Journal of Physics: Conference Series | |||||||||
Refereed publication: | Yes | |||||||||
Open Access: | Yes | |||||||||
Gold Open Access: | Yes | |||||||||
In SCOPUS: | Yes | |||||||||
In ISI Web of Science: | No | |||||||||
Volume: | 1452 | |||||||||
DOI : | 10.1088/1742-6596/1452/1/012068 | |||||||||
Page Range: | 012068 | |||||||||
Publisher: | Institute of Physics (IOP) Publishing | |||||||||
ISSN: | 1742-6588 | |||||||||
Status: | Published | |||||||||
Keywords: | wind-turbine wake, wind veer, LES | |||||||||
HGF - Research field: | Energy | |||||||||
HGF - Program: | Renewable Energies | |||||||||
HGF - Program Themes: | Wind Energy | |||||||||
DLR - Research area: | Energy | |||||||||
DLR - Program: | E SW - Solar and Wind Energy | |||||||||
DLR - Research theme (Project): | E - Wind Energy (old) | |||||||||
Location: | Oberpfaffenhofen | |||||||||
Institutes and Institutions: | Institute of Atmospheric Physics > Transport Meteorology | |||||||||
Deposited By: | Englberger, Antonia | |||||||||
Deposited On: | 20 Nov 2020 12:40 | |||||||||
Last Modified: | 20 Nov 2020 12:40 |
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