Tagungsband - DAGA 2024
Beitrag
Comparing Wind Turbine Noise Measurements to Multiple Sound Propagation Models
Zusammenfassung:
As part of the project “WEA acceptance”*, extensive measurements were carried out in the area of wind turbines to validate a sound propagation model. Acoustical, meteorological and wind turbine operational data were acquired under different environmental conditions. By processing and analyzing the measurement data, ten validation cases and respective input parameters for sound propagation models were derived. In the validation cases, different propagation directions are considered. The landscape is characterized as flat and grassy and therefore represents a simple propagation scenario.Within the IEA Wind TCP Task 39, the validation cases are used to compare and to validate different propagation models for wind turbine noise. Currently, the examinations include the ray-tracing method based Nord2000 and three models based on the parabolic equation method.In this contribution, the measurements and the derivation of the input data for models are presented. The activities in IEA Task 39 are then discussed. The different propagation models of wind turbine noise are briefly outlined and are finally compared with the measurement data. As this is an on-going topic, the current status of the work is presented.*“WEA acceptance” was funded by the Federal Minister for Economic Affairs and Climate Action (FKZ: 0324134A).