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van der Wall, Berend G. (2019) Wind Turbine Wake Vortex Influence on Safety of Small Rotorcraft. The Aeronautical Journal, 123 (1267), pp. 1374-1395. Cambridge University Press. doi: 10.1017/aer.2019.59. ISSN 0001-9240.
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Abstract
The wake vortex of lifting surfaces such as wind turbine blades or fixed-wing aircraft can heavily affect the blade aerodynamics of rotating wing aircraft. Based on blade element theo-ry the pilot controls required to mitigate such vortex effects are estimated and compared to the available control margin at the operating condition of interest. Contrary, when no pilot action is performed, the rotor blade flapping caused by the vortex are evaluated and compared to available margins. A concern of safety arises when the remaining margins become zero. The influence of the vortex strength, its core radius and orientation to the rotor disk are evaluated and the effect of rotor blade characteristics (Lock number, natural frequency) is investigated.
| Item URL in elib: | https://elib.dlr.de/123132/ | ||||||||
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| Document Type: | Article | ||||||||
| Title: | Wind Turbine Wake Vortex Influence on Safety of Small Rotorcraft | ||||||||
| Authors: |
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| Date: | September 2019 | ||||||||
| Journal or Publication Title: | The Aeronautical Journal | ||||||||
| Refereed publication: | Yes | ||||||||
| Open Access: | Yes | ||||||||
| Gold Open Access: | No | ||||||||
| In SCOPUS: | Yes | ||||||||
| In ISI Web of Science: | Yes | ||||||||
| Volume: | 123 | ||||||||
| DOI: | 10.1017/aer.2019.59 | ||||||||
| Page Range: | pp. 1374-1395 | ||||||||
| Publisher: | Cambridge University Press | ||||||||
| ISSN: | 0001-9240 | ||||||||
| Status: | Published | ||||||||
| Keywords: | flight safety, helicopter, autogyro, safety, wake encounter, vortex-rotor interaction, wind turbine wake | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Aeronautics | ||||||||
| HGF - Program Themes: | rotorcraft | ||||||||
| DLR - Research area: | Aeronautics | ||||||||
| DLR - Program: | L RR - Rotorcraft Research | ||||||||
| DLR - Research theme (Project): | L - The Innovative Rotorcraft (old) | ||||||||
| Location: | Braunschweig | ||||||||
| Institutes and Institutions: | Institute of Flight Systems > Rotorcraft | ||||||||
| Deposited By: | van der Wall, Prof. Dr. Berend G. | ||||||||
| Deposited On: | 17 Sep 2019 12:00 | ||||||||
| Last Modified: | 30 Oct 2023 14:03 |
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