Preprints
https://doi.org/10.5194/wes-2021-145
https://doi.org/10.5194/wes-2021-145
 
22 Feb 2022
22 Feb 2022
Status: this preprint is currently under review for the journal WES.

A new base of wind turbine noise measurement data and its application for a systematic validation of sound propagation models

Susanne Könecke1,, Jasmin Hörmeyer2, Tobias Bohne1, and Raimund Rolfes1 Susanne Könecke et al.
  • 1Leibniz University Hannover, Institute of Structural Analysis, Appelstraße 9A, 30167 Hannover, Germany
  • 2GICON - Großmann Ingenieur Consult GmbH, Tiergartenstraße 48, 01219 Dresden, Germany
  • Previous research was published under the name Susanne Martens

Abstract. Extensive measurements in the area of wind turbines were performed in order to validate a sound propagation model which is based on the Crank-Nicolson Parabolic Equations method. The measurements were carried out over a flat grass-covered landscape and under various environmental conditions. During the measurements, meteorological and wind turbine performance data were acquired and acoustical data sets were recorded in distances of 178, 535, and 845 m to the wind turbine. By processing and analyzing the measurement data, validation cases and input parameters for the propagation model were derived. The validation includes five groups that are characterized by different propagation directions, i.e. down-, cross- and upwind conditions in varying strength. Comparing measured and modeled propagation losses, a general good agreement is observed for all groups. Considering all groups and distances, the absolute averaged difference of the measured and modeled losses in total sound pressure level is 0.9 dB. At large distances, the propagation losses are slightly underestimated by the model. The model represents the measured propagation losses in the 1/3 octave spectra well. As in the measurements, frequency-dependent maxima and minima are identified and losses generally increase with increasing distance and frequency. For good results in upwind situations, turbulence has been considered in the model. The data sets used in the validation are available for further research.

Susanne Könecke et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wes-2021-145', Anonymous Referee #1, 23 Feb 2022
  • RC2: 'Comment on wes-2021-145', Anonymous Referee #2, 23 Mar 2022
  • RC3: 'Comment on wes-2021-145', Anonymous Referee #3, 28 Mar 2022

Susanne Könecke et al.

Data sets

Wind Turbine Sound Propagation Data for the Validation of Models Susanne Könecke, Jasmin Hörmeyer, Tobias Bohne, Raimund Rolfes https://data.uni-hannover.de/dataset/wtn-propagation

Susanne Könecke et al.

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Short summary
Extensive measurements in the area of wind turbines were performed in order to validate a sound propagation model. The measurements were carried out under various environmental conditions and included the acquisition of acoustical, meteorological and wind turbine performance data. By processing and analyzing the measurement data, validation cases and input parameters for the propagation model were derived. Comparing measured and modeled propagation losses, a general good agreement is observed.