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Herr, Michaela und Ewert, Roland und Faßmann, Benjamin und Rautmann, Christof und Martens, Susanne und Rohardt, Claas-Hinrik und Suryadi, Alexandre (2017) Noise Reduction Technologies for Wind Turbines. In: New Results in Numerical and Experimental Fluid Mechanics XI, 136, Seiten 611-621. Springer International Publishing. 20. DGLR/STAB Symposium, 2016-11-08 - 2016-11-09, Braunschweig, Deutschland. doi: 10.1007/978-3-319-64519-3_55. ISBN 978-3-319-64518-6. ISSN 1612-2909.
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Offizielle URL: http://www.springer.com/de/book/9783319645186
Kurzfassung
Results from a numerical and experimental aeroacoustic assessment of 2D wind turbine blade sections are presented. CFD/CAA-based predictions using a synthetic turbulence method were conducted at a NACA 64-618 profile as well as at a new low-noise airfoil design RoH-W-18%c37. Validation experiments were performed in DLR's Acoustic Wind-Tunnel Braunschweig (AWB) for varying transition locations. A trailing-edge noise reduction benefit of 2-4 dB in overall sound pressure level was predicted for the new airfoil under design conditions. A large laminar extent of the boundary layer significantly reduces the noise emission (by up to 8~dB) compared to equivalent cases with forced transition at the leading edge. An additional noise reduction (with realistic reductions of the peak levels by 4-6 dB) was accomplished by flow-permeable trailing-edge extensions which were successfully transferred to the two profiles from forerunner aerospace-related studies.
| elib-URL des Eintrags: | https://elib.dlr.de/118642/ | ||||||||||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||||||
| Titel: | Noise Reduction Technologies for Wind Turbines | ||||||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2017 | ||||||||||||||||||||||||||||||||
| Erschienen in: | New Results in Numerical and Experimental Fluid Mechanics XI | ||||||||||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||
| Band: | 136 | ||||||||||||||||||||||||||||||||
| DOI: | 10.1007/978-3-319-64519-3_55 | ||||||||||||||||||||||||||||||||
| Seitenbereich: | Seiten 611-621 | ||||||||||||||||||||||||||||||||
| Herausgeber: |
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| Verlag: | Springer International Publishing | ||||||||||||||||||||||||||||||||
| Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||||||||||
| ISSN: | 1612-2909 | ||||||||||||||||||||||||||||||||
| ISBN: | 978-3-319-64518-6 | ||||||||||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
| Stichwörter: | wind energy, flow-induced sound, aeroacoustics, trailing-edge noise, Acoustic Wind-Tunnel Braunschweig, AWB, BMWi-project BELARWEA | ||||||||||||||||||||||||||||||||
| Veranstaltungstitel: | 20. DGLR/STAB Symposium | ||||||||||||||||||||||||||||||||
| Veranstaltungsort: | Braunschweig, Deutschland | ||||||||||||||||||||||||||||||||
| Veranstaltungsart: | nationale Konferenz | ||||||||||||||||||||||||||||||||
| Veranstaltungsbeginn: | 8 November 2016 | ||||||||||||||||||||||||||||||||
| Veranstaltungsende: | 9 November 2016 | ||||||||||||||||||||||||||||||||
| Veranstalter : | Deutsche Strömungsmechanische Arbeitsgemeinschaft | ||||||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||||||
| HGF - Programm: | Erneuerbare Energie | ||||||||||||||||||||||||||||||||
| HGF - Programmthema: | Windenergie | ||||||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | E SW - Solar- und Windenergie | ||||||||||||||||||||||||||||||||
| 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: | Seyfried, Beate | ||||||||||||||||||||||||||||||||
| Hinterlegt am: | 31 Jan 2018 14:29 | ||||||||||||||||||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 20:22 |
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