Herr, Michaela und Ewert, Roland und Faßmann, Benjamin und Rautmann, Christof und Martens, Susanne und Rohardt, Claas-Hinrik und Suryadi, Alexandre (2016) Low-Noise Technologies for Wind Turbine Blades. WindEurope Tech Workshop, Wind Turbine Sound 2016, 2016-11-17 - 2016-11-18, Danzig, Polen.
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Kurzfassung
The BMWi-funded wind energy project BELARWEA aims at the development and validation of improved methods to support the design of both efficient and low-noise wind turbine rotors. Aeroacoustically driven 2D profile design, 3D winglet design and 2D/3D CFD and CAA analysis are supplemented by the transfer of passive noise reduction technologies from aerospace applications to wind turbine blades. Based on a down-scaled version of the open source NREL-5-MW reference rotor, a noise reduction of at least 3 dB at a given rotor performance is targeted by a dedicated 3D redesign of the outer 20% of the rotor radius. Experimental demonstration and tool validation shall be provided in systematic validation steps, i.e. • at 2D blade sections in the AWB acoustic wind-tunnel of DLR and • at 3D blade tips in the larger acoustic facility DNW-NWB, operated by the German-Dutch Wind-Tunnels Foundation. The presentation provides in its first part an overall project overview. In its second part results from the first set of AWB measurements are summarized, yielding a detailed matrix of the relevant system parameters (i.e. aerodynamic performance vs. noise). Aeroacoustic predictions are compared with the experimental results and transposed to full scale conditions. In addition, the noise reduction potential of selected trailing-edge add-ons is evaluated at varying test velocities, angles of attack and boundary-layer transition regions.
elib-URL des Eintrags: | https://elib.dlr.de/109601/ | ||||||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||||||
Titel: | Low-Noise Technologies for Wind Turbine Blades | ||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | 17 November 2016 | ||||||||||||||||||||||||||||||||
Referierte Publikation: | Nein | ||||||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
Stichwörter: | Trailing-Edge Noise Measurements, CAA Predictions, FRPM, Low-Noise Design and Retrofit, Trailing-Edge Noise, Noise Reduction Technology, Serrations, Brushes, Wind Turbine Noise | ||||||||||||||||||||||||||||||||
Veranstaltungstitel: | WindEurope Tech Workshop, Wind Turbine Sound 2016 | ||||||||||||||||||||||||||||||||
Veranstaltungsort: | Danzig, Polen | ||||||||||||||||||||||||||||||||
Veranstaltungsart: | Workshop | ||||||||||||||||||||||||||||||||
Veranstaltungsbeginn: | 17 November 2016 | ||||||||||||||||||||||||||||||||
Veranstaltungsende: | 18 November 2016 | ||||||||||||||||||||||||||||||||
Veranstalter : | WinEurope (ehemals EWEA) | ||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||||||
HGF - Programm: | Erneuerbare Energie | ||||||||||||||||||||||||||||||||
HGF - Programmthema: | keine Zuordnung | ||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | E SF - Solarforschung | ||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Windenergie (alt) | ||||||||||||||||||||||||||||||||
Standort: | Braunschweig | ||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Technische Akustik Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge | ||||||||||||||||||||||||||||||||
Hinterlegt von: | Herr, Dr. Michaela | ||||||||||||||||||||||||||||||||
Hinterlegt am: | 15 Dez 2016 10:32 | ||||||||||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:14 |
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