Environmental parameters sensitivity analysis for the modeling of wind turbine noise in downwind conditions
| Autor: | Benjamin Cotte, Bill Kayser, David Ecotiere, Benoit Gauvreau |
|---|---|
| Přispěvatelé: | Unité Mixte de Recherche en Acoustique Environnementale (UMRAE ), Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement (Cerema)-Université Gustave Eiffel, Institut des Sciences de la mécanique et Applications industrielles (IMSIA - UMR 9219), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay-EDF R&D (EDF R&D), EDF (EDF)-EDF (EDF), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-EDF R&D (EDF R&D) |
| Rok vydání: | 2020 |
| Předmět: |
Absorption (acoustics)
Acoustics and Ultrasonics incertitudes Acoustics Ifsttar 01 natural sciences 7. Clean energy Turbine 03 medical and health sciences 0302 clinical medicine Arts and Humanities (miscellaneous) EOLIENNE Speed of sound 0103 physical sciences Refraction (sound) Atmospheric refraction ACLI 030223 otorhinolaryngology Sound pressure Propagation 010301 acoustics ComputingMilieux_MISCELLANEOUS Wind power Cerema business.industry [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] Noise 13. Climate action Environmental science business |
| Zdroj: | The Journal of the Acoustical Society of America The Journal of the Acoustical Society of America, 2020, 148 (6), pp.3623--3632. ⟨10.1121/10.0002872⟩ Journal of the Acoustical Society of America Journal of the Acoustical Society of America, Acoustical Society of America, 2020, 148 (6), pp.3623-3632. ⟨10.1121/10.0002872⟩ Journal of the Acoustical Society of America, 2020, 148 (6), pp.3623-3632. ⟨10.1121/10.0002872⟩ |
| ISSN: | 1520-8524 0001-4966 |
| DOI: | 10.1121/10.0002872⟩ |
| Popis: | Modeling a wind turbine sound field involves taking into account the main aeroacoustic sources that are generally dominant for modern wind turbines, as well as environmental phenomena such as atmospheric conditions and ground properties that are variable in both time and space. A crucial step to obtain reliable predictions is to estimate the relative influence of environmental parameters on acoustic emission and propagation, in order to determine the parameters that induce the greatest variability on sound pressure level. Thus, this study proposes a Morris sensitivity analysis of a wind turbine noise emission model combined with a sound propagation model in downwind conditions. The emission model is based on Amiet's theory and propagation effects are modeled by the wide-angle parabolic equation. The whole simulation takes into account ground effects (absorption through acoustic impedance and scattering through surface roughness) and micrometeorological effects (mean refraction through the vertical gradient of effective sound speed). The final results show that the parameters involved in atmospheric refraction and in ground absorption have a significant influence on sound pressure level. On the other hand, in the context of this study the relative air humidity and the ground roughness parameters appear to be negligible on sound pressure level sensitivity. |
| Databáze: | OpenAIRE |
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