TY - JOUR
T1 - A modified free wake vortex ring method for horizontal-axiswind turbines
AU - Dong, Jing
AU - Viré, Axelle
AU - Ferreira, Carlos Simao
AU - Li, Zhangrui
AU - Van Bussel, Gerard
PY - 2019/10/15
Y1 - 2019/10/15
N2 - A modified free-wake vortex ring model is proposed to compute the dynamics of a floating horizontal-axis wind turbine, which is divided into two parts. The near wake model uses a blade bound vortex model and trailed vortex model, which is developed based on vortex filament method with straight lifting lines assumption. By contrast, the far wake model is based on the vortex ring method. The proposed model is a good compromise between accuracy and computational cost, for example when compared with more complex vortex methods. The present model is used to assess the influence of floating platform motions on the performance of a horizontal-axis wind turbine rotor. The results are validated on the 5 MW NREL rotor and compared with other aerodynamic models for the same rotor subjected to different platform motions. The results show that the proposed method is reliable. In addition, the proposed method is less time consuming and has similar accuracy when comparing with more advanced vortex based methods.
AB - A modified free-wake vortex ring model is proposed to compute the dynamics of a floating horizontal-axis wind turbine, which is divided into two parts. The near wake model uses a blade bound vortex model and trailed vortex model, which is developed based on vortex filament method with straight lifting lines assumption. By contrast, the far wake model is based on the vortex ring method. The proposed model is a good compromise between accuracy and computational cost, for example when compared with more complex vortex methods. The present model is used to assess the influence of floating platform motions on the performance of a horizontal-axis wind turbine rotor. The results are validated on the 5 MW NREL rotor and compared with other aerodynamic models for the same rotor subjected to different platform motions. The results show that the proposed method is reliable. In addition, the proposed method is less time consuming and has similar accuracy when comparing with more advanced vortex based methods.
KW - Aerodynamics
KW - Floating wind energy
KW - Free wake vortex method
KW - Horizontal-axis wind turbine
UR - http://www.scopus.com/inward/record.url?scp=85074989547&partnerID=8YFLogxK
U2 - 10.3390/en12203900
DO - 10.3390/en12203900
M3 - Article
SN - 1996-1073
VL - 12
JO - Energies
JF - Energies
IS - 20
M1 - 3900
ER -
