Open AccessDependence of wind turbine loads on inlet flow field
Author(s) -
Øyvind Waage Hanssen-Bauer,
Jacobus Bernardus De Vaal,
Murat Tutkun,
Henrik Asmuth,
Stefan Ivanell,
Roy Stenbro
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1618/6/062065
Subject(s) - inflow , turbulence , wake , turbine , turbulence kinetic energy , aeroelasticity , wind power , meteorology , environmental science , wind speed , mechanics , aerodynamics , physics , engineering , aerospace engineering , electrical engineering
In wind farm simulations, the inflow wind field plays a crucial role in the accuracy of both power production, structural load predictions and the turbulent wake development behind wind turbines. Three different inflow wind field generation techniques, namely the Mann model, a reduced order based model described herein and LES data, are used in this study to characterise the relation between the inflow and the structural response of the wind turbine. In addition, the wake development under different inflow conditions are studied. The turbulence statistics of the reduced-order model and the LES data are similar to each other while the Mann turbulence has different turbulence profiles and spectral characteristics. An in-house developed aeroelastic code, 3Dfloat, is used for structural response analysis. The differences between the inflow fields are mainly attributed to the turbulence intensity profiles, and differences in their spectral characteristics.