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Länger-Möller, Annika (2017) Simulation of transient gusts on the NREL5 MW wind turbine using CFD. Wind Energy Science. Wind Energy Science Conference, 26.06.-29.06.2017, Kopenhagen, Dänemark. doi: 10.5194/wes-2017-47.
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Official URL: https://www.wind-energ-sci-discuss.net/wes-2017-47/
Abstract
The performed work presents a procedure, implemented in the CFD-solver THETA, to propagate longitudinal transient gusts through a flow field by using a resolved gust approach. Both, the gust strike of a 1-cos()-gust and an extreme operating gust following the IEC-64100-1 standard, on the generic NREL 5MW wind turbine at rated operating conditions are investigated with CFD. The impact of both gusts on pressure distributions, rotor thrust, rotor torque, and flow states on the blade are examined and quantified. The flow states on the rotor blade before the gust strike and at maximum and minimum gust velocity are compared. An increased blade loading is detectable in the pressure coefficients and integrated blade loads. The friction force coefficients indicate the dynamic separation and re-attachment of the flow during the gust.
| Item URL in elib: | https://elib.dlr.de/115710/ | |||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||
| Title: | Simulation of transient gusts on the NREL5 MW wind turbine using CFD | |||||||||
| Authors: |
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| Date: | October 2017 | |||||||||
| Refereed publication: | No | |||||||||
| Open Access: | Yes | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Volume: | 1 | |||||||||
| DOI : | 10.5194/wes-2017-47 | |||||||||
| Editors: |
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| Publisher: | Wind Energy Science | |||||||||
| Status: | Published | |||||||||
| Keywords: | Wind turbine NREL 5MW Certification test case Extreme operating gust resolved gust approach | |||||||||
| Event Title: | Wind Energy Science Conference | |||||||||
| Event Location: | Kopenhagen, Dänemark | |||||||||
| Event Type: | international Conference | |||||||||
| Event Dates: | 26.06.-29.06.2017 | |||||||||
| 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: | Braunschweig | |||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Helicopter, BS | |||||||||
| Deposited By: | Länger, Annika | |||||||||
| Deposited On: | 22 Nov 2017 11:30 | |||||||||
| Last Modified: | 31 Jul 2019 20:13 |
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