Abstract
| Original language | English |
|---|---|
| Article number | 022001 |
| Book series | Journal of Physics: Conference Series |
| Volume | 1037 |
| Issue number | 2 |
| Number of pages | 10 |
| ISSN | 1742-6596 |
| DOIs | |
| Publication status | Published - 2018 |
| Event | The Science of Making Torque from Wind 2018 - Politecnico di Milano (POLIMI), Milan, Italy Duration: 20 Jun 2018 → 22 Jun 2018 Conference number: 7 http://www.torque2018.org/ |
Conference
| Conference | The Science of Making Torque from Wind 2018 |
|---|---|
| Number | 7 |
| Location | Politecnico di Milano (POLIMI) |
| Country | Italy |
| City | Milan |
| Period | 20/06/2018 → 22/06/2018 |
| Internet address |
Bibliographical note
Content from this work may be used under the terms of theCreative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing LtdCite this
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Noise emission from wind turbines in wake - Measurement and modeling. / Bertagnolio, Franck; Aa Madsen, Helge; Fischer, Andreas.
In: Journal of Physics: Conference Series, Vol. 1037, No. 2, 022001, 2018.Research output: Contribution to journal › Conference article › Research › peer-review
TY - GEN
T1 - Noise emission from wind turbines in wake - Measurement and modeling
AU - Bertagnolio, Franck
AU - Aa Madsen, Helge
AU - Fischer, Andreas
N1 - Content from this work may be used under the terms of theCreative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd
PY - 2018
Y1 - 2018
N2 - The influence of the wake of an upstream turbine impinging another one located further downstream is studied focusing on the latter’s noise emission. Measurement data are investigated in the form of surface pressure fluctuations acquired using microphones flush-mounted in a wind turbine blade near its tip, characterizing the noise sources. Numerical results from a wind turbine noise model are also included in the analysis. The wind speed deficit and increased turbulence levels of the wake flow are clearly observed. Surface pressure measurements strongly support the fact that turbulent inflow noise is increased. However, numerical results show that the wake velocity deficit reduces noise in certain circumtances. This can compensate, or even sometime more than compensate, the additional noise emission expected as a result of the wake turbulence. Furthermore, noise amplitude modulation appears to increase when the turbine is impacted by the wake flow.
AB - The influence of the wake of an upstream turbine impinging another one located further downstream is studied focusing on the latter’s noise emission. Measurement data are investigated in the form of surface pressure fluctuations acquired using microphones flush-mounted in a wind turbine blade near its tip, characterizing the noise sources. Numerical results from a wind turbine noise model are also included in the analysis. The wind speed deficit and increased turbulence levels of the wake flow are clearly observed. Surface pressure measurements strongly support the fact that turbulent inflow noise is increased. However, numerical results show that the wake velocity deficit reduces noise in certain circumtances. This can compensate, or even sometime more than compensate, the additional noise emission expected as a result of the wake turbulence. Furthermore, noise amplitude modulation appears to increase when the turbine is impacted by the wake flow.
U2 - 10.1088/1742-6596/1037/2/022001
DO - 10.1088/1742-6596/1037/2/022001
M3 - Conference article
VL - 1037
JO - Journal of Physics: Conference Series (Online)
JF - Journal of Physics: Conference Series (Online)
SN - 1742-6596
IS - 2
M1 - 022001
ER -