A combined aeroelastic-aeroacoustic model for wind turbine noise: Verification and analysis of field measurements

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Abstract

In this paper, semi-empirical engineering models for the three main wind turbine aerodynamic noise sources, namely, turbulent inflow, trailing edge and stall noise, are introduced. They are implemented into the in-house aeroelastic code HAWC2 commonly used for wind turbine load calculations and design. The results of the combined aeroelastic and aeroacoustic model are compared with field noise measurements of a 500kW wind turbine. Model and experimental data are in fairly good agreement in terms of noise levels and directivity. The combined model allows separating the various noise sources and highlights a number of mechanisms that are difficult to differentiate when only the overall noise from a wind turbine is measured.
Original languageEnglish
JournalWind Energy
Volume20
Issue number8
Pages (from-to)1331-1348
ISSN1095-4244
DOIs
Publication statusPublished - 2017

Keywords

  • Model verification
  • Stall noise
  • Trailing edge noise
  • Turbulent inflow noise
  • Wind turbine noise
  • Field measurement

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