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Sound propagation through the wake flow of a hilltop wind turbine—A numerical study

Heimann, Dietrich and Englberger, Antonia and Schady, Arthur (2018) Sound propagation through the wake flow of a hilltop wind turbine—A numerical study. Wind Energy, 21, pp. 650-662. Wiley. DOI: 10.1002/we.2185 ISSN 1095-4244

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Official URL: https://onlinelibrary.wiley.com/doi/epdf/10.1002/we.2185

Abstract

The sound propagation from a wind turbine situated on the top of a hill into the downwind domain is studied by numerical simulations for 13 cases with varying hill geometry and inflow conditions. The influence of the hill on the atmospheric flow and the wake due to the rotor are simulated by precursory large-eddy simulations. In addition to the combined consideration of hill and turbine wake effects, these effects are also separately evaluated. The results show that placing the turbine on top of a hill leads to slightly lower sound levels on the downwind plane, although the wake alone supports downward refraction and tends to increase the sound Impact near the ground at greater distance. Variations of the hill geometry and the inflow conditions do not have significant effects on the near-ground sound levels in the downwind domain.

Item URL in elib:https://elib.dlr.de/120604/
Document Type:Article
Title:Sound propagation through the wake flow of a hilltop wind turbine—A numerical study
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Heimann, DietrichDLR, IPAUNSPECIFIED
Englberger, AntoniaDLR, IPAUNSPECIFIED
Schady, ArthurDLR, IPAhttps://orcid.org/0000-0002-3078-9546
Date:2018
Journal or Publication Title:Wind Energy
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:21
DOI :10.1002/we.2185
Page Range:pp. 650-662
Editors:
EditorsEmail
Wiley, JohnUNSPECIFIED
Publisher:Wiley
Series Name:John Wiley & Sons, Ltd
ISSN:1095-4244
Status:Published
Keywords:hill, numerical simulation, sound propagation, wake flow, wind turbine
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
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Schady, Dr. Arthur
Deposited On:25 Jun 2018 09:15
Last Modified:23 Feb 2019 00:22

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