Open AccessComparison of the free vortex wake and actuator line methods to study the loads of a wind turbine in imposed surge motion
Author(s) -
Rémi Corniglion,
Jeffrey C. Harris,
Christophe Peyrard,
Matteo Capaldo
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 - 10.1088/1742-6596/1618/5/052045
Subject(s) - wake , surge , turbine , marine engineering , rotor (electric) , vortex , mechanics , offshore wind power , engineering , actuator , aerospace engineering , physics , meteorology , mechanical engineering , electrical engineering
To enable the development of floating offshore wind farms, it is important to have a clear understanding of the aerodyamic forces applied on a floating offshore wind turbine. The paper presents comparisons between a lifting line free vortex wake method and an actuator line method in the case of a wind turbine in surge with blade-resolved CFD data as a reference. Each model is compared to a quasi-steady estimation of the loads to understand the variations due to the surge movement. The near-wake flow field is investigated in order to give an insight into the flow features leading to the observed behavior. Both methods predict a higher axial velocity at the position of the rotor and one radius downstream of the rotor in surge conditions compared to the fixed case.