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Herr, Michaela und Suryadi, Alexandre und Martens, Susanne (2016) Comparative Noise Measurements at Serrated and Porous Trailing-Edge Modifications. Serration Technology on Airfoil: Unsteady Aerodynamic and Aeroacoustics, 17.-21. Oktober 2016, Leiden, Niederlande.
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Kurzfassung
The presentation summarizes the outcome from recent measurements in the Acoustic Wind-Tunnel Braunschweig (AWB), conducted within the framework of the German wind energy project BELARWEA. Several modifications of the trailing-edge region of two different 2D airfoils were acoustically evaluated. The noise reduction potential of slotted, microperforated and serrated trailing-edge modifications are compared at varying test velocities, angles of attack and boundary-layer transition regions. The limitations of current trailing edge noise measurement setups are discussed in depth and a tentative interpretation of noise reduction mechanisms of serrations vs. alternative noise reduction technologies is provided.
| elib-URL des Eintrags: | https://elib.dlr.de/109600/ | ||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
| Titel: | Comparative Noise Measurements at Serrated and Porous Trailing-Edge Modifications | ||||||||||||||||
| Autoren: |
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| Datum: | 17 Oktober 2016 | ||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||
| Open Access: | Nein | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | Trailing-Edge Noise Measurements, Trailing-Edge Noise, Noise Reduction Technology, Serrations, Brushes, Wind Turbine Noise | ||||||||||||||||
| Veranstaltungstitel: | Serration Technology on Airfoil: Unsteady Aerodynamic and Aeroacoustics | ||||||||||||||||
| Veranstaltungsort: | Leiden, Niederlande | ||||||||||||||||
| Veranstaltungsart: | Workshop | ||||||||||||||||
| Veranstaltungsdatum: | 17.-21. Oktober 2016 | ||||||||||||||||
| Veranstalter : | Lorentz Center, Leiden | ||||||||||||||||
| 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 | ||||||||||||||||
| Hinterlegt von: | Herr, Dr. Michaela | ||||||||||||||||
| Hinterlegt am: | 15 Dez 2016 10:41 | ||||||||||||||||
| Letzte Änderung: | 15 Mär 2024 07:31 |
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