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Impact of low-level...
Impact of low-level wind maxima below hub height on wind turbine sound propagation
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- Conrady, Kristina (författare)
- Uppsala universitet,Luft-, vatten- och landskapslära
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- Bolin, Karl, 1977- (författare)
- KTH,Marcus Wallenberg Laboratoriet MWL,Kungliga Tekn Hgsk, Marcus Wallenberg Lab, Stockholm, Sweden.
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- Sjöblom, Anna, Professor, 1972- (författare)
- Uppsala universitet,Luft-, vatten- och landskapslära
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- Rutgersson, Anna, 1971- (författare)
- Uppsala universitet,Luft-, vatten- och landskapslära
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(creator_code:org_t)
- 2020-05-30
- 2020
- Engelska.
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Ingår i: Wind Energy. - : John Wiley and Sons Ltd. - 1095-4244 .- 1099-1824. ; 23:8, s. 1767-1775
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- An analysis of the effect of low-level wind maxima (LLWM) below hub height on sound propagating from wind turbines has been performed at a site in northern Sweden. The stably stratified boundary layer, which is typical for cold climates, commonly features LLWM. The simplified concept for the effects of refraction, based on the logarithmic wind profile or other approaches where the wind speed is continuously increasing with height, is often not applicable there. Long-term meteorological measurements in the vicinity of a wind farm were therefore used to identify LLWM. Sound measurements were conducted simultaneously to the meteorological measurements. LLWM below hub height decrease the sound level close to the surface downwind of the wind farm. This effect increases with increasing strength of the LLWM. The occurrence of LLWM as well as strength and height of the LLWM are dependent on the wind direction.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
Nyckelord
- atmospheric acoustics
- low-level wind maxima
- wind energy
- wind turbine sound
- Architectural acoustics
- Boundary layer flow
- Boundary layers
- Electric utilities
- Wind
- Wind power
- Cold climate
- Low-level winds
- Meteorological measurements
- Northern sweden
- Stratified boundary layers
- Wind directions
- Wind profiles
- Wind turbine sounds
- Wind turbines
- sound propagation
- wind direction
- wind farm
- wind profile
- wind turbine
- wind velocity
- Sweden
- Meteorologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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