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How does inflow veer affect the veer of a wind-turbine wake?

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/
Document Type:Article
Title:How does inflow veer affect the veer of a wind-turbine wake?
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Englberger, AntoniaDLR, IPAUNSPECIFIED
Lundquist, Julie K.University of Colorado Boulder, Boulder, Colorado, USAhttps://orcid.org/0000-0001-5490-2702
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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