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, 2016-10-17 - 2016-10-21, 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 | ||||||||||||||||
Veranstaltungsbeginn: | 17 Oktober 2016 | ||||||||||||||||
Veranstaltungsende: | 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: | 24 Apr 2024 20:14 |
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