title: Is a wind turbine a point source? (L).
abstract: Measurements show that practically all noise of wind turbine noise is produced by turbine blades, sometimes a few tens of meters long, despite that the model of a point source located at the hub height is commonly used. The plane of rotating blades is the critical location of the receiver because the distances to the blades are the shortest. It is shown that such location requires certain condition to be met. The model is valid far away from the wind turbine as well.
authors.affiliation: Institute of Acoustics, A. Mickiewicz University, 61-614 Poznan, Umultowska 85, Poland. makaaku@amu.edu.pl
authors.forename: Rufin
authors.initials: R
authors.lastname: Makarewicz
mesh_terms: D000162:Acoustics / Q000295:instrumentation; D004738:Engineering / Q000295:instrumentation*; D004867:Equipment Design; D008962:Models, Theoretical; D009622:Noise; D012399:Rotation; D014159:Transducers; D014919:Wind