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Aeroacoustic Assessment of Rotor Blades by means of Numerical Methods

Faßmann, Benjamin and Reiche, Nils and Ewert, Roland and Herr, Michaela and Delfs, Jan (2017) Aeroacoustic Assessment of Rotor Blades by means of Numerical Methods. DEWEK 2017 -- 13th Germin Wind Energy Conference, 17.-18. Okt. 2017, Bremen, Deutschland.

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With the objective to estimate the 3D sound emission of a full scale wind turbine, a tool chain is cur-rently being developed at DLR. The method benefits from a finite number of high fidelity 2D computa-tions and represents the sound generation of any blade element within a selected parameter range via bilinear interpolation. The large number of Mach and Reynolds number combinations at the rotor is reduced to a manageable amount of local flow conditions. The sound immission at defined observer positions will be finally derived by summing up the contributions from individual blade elements.

Item URL in elib:https://elib.dlr.de/117319/
Document Type:Conference or Workshop Item (Speech)
Title:Aeroacoustic Assessment of Rotor Blades by means of Numerical Methods
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Faßmann, BenjaminBenjamin.Fassmann (at) dlr.deUNSPECIFIED
Reiche, NilsNils.Reiche (at) dlr.deUNSPECIFIED
Ewert, RolandRoland.Ewert (at) dlr.deUNSPECIFIED
Herr, MichaelaMichaela.Herr (at) dlr.deUNSPECIFIED
Delfs, JanJan.Delfs (at) dlr.deUNSPECIFIED
Date:October 2017
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Wind Turbine Noise; Sound Emission; Sound Immision;
Event Title:DEWEK 2017 -- 13th Germin Wind Energy Conference
Event Location:Bremen, Deutschland
Event Type:international Conference
Event Dates:17.-18. Okt. 2017
Organizer:UL DEWI
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Wind Energy
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Wind Energy (old)
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Faßmann, Benjamin
Deposited On:20 Dec 2017 12:06
Last Modified:20 Dec 2017 12:06

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