LIU Ke, MIAO Weipao, LI Chun, et al. Aerodynamic Characteristics Simulation of Horizontal Axis Wind Turbine Wake in Turbulent Wind Environment[J]. 2026, 46(3): 1133-1143.
DOI:
LIU Ke, MIAO Weipao, LI Chun, et al. Aerodynamic Characteristics Simulation of Horizontal Axis Wind Turbine Wake in Turbulent Wind Environment[J]. 2026, 46(3): 1133-1143.DOI: 10.13334/j.0258-8013.pcsee.241610.
Aerodynamic Characteristics Simulation of Horizontal Axis Wind Turbine Wake in Turbulent Wind Environment
水平轴风力机尾流可显著影响风场下游风力机组气动特性,但传统基于数学或致动模型的尾流分析方法难以获得风力机尾流精细涡结构特征,且忽略了真实湍流环境的影响。该文通过计算流体力学方法开展全尺寸美国可再生能源实验室(national renewable energy laboratory,NREL) 5 MW风力机在湍流风场下尾流气动特性研究规律,同时考虑风力机在湍流风下的变转速控制。结果表明,风力机输出功率随湍流风的波动而变化,而适当的转速控制可更好地提取风能;湍流风有助于加速尾流速度亏损的恢复;尾流横、纵向蜿蜒与湍流风流向及垂向的波动正相关;叶尖涡的破裂可加速尾流区速度的恢复。
Abstract
The wake of horizontal axis wind turbines can significantly affect the aerodynamic characteristics of downstream wind turbines in a wind farm. However
traditional wake analysis methods
which are based on mathematical or actuator line models
struggle to capture the detailed vortex structure characteristics of wind turbine wakes
and neglect the influence of actual turbulent environments. Therefore
in this paper
the computational fluid dynamics method is used to study the wake aerodynamic characteristics of the full-scale NREL 5 MW wind turbine in turbulent wind field
and the rotor speed control of the wind turbine in turbulent wind is considered. The results indicate that the output power of the wind turbine varies with the fluctuations of turbulent winds
and appropriate rotor speed control can better extract wind energy. Turbulent winds facilitate the recovery of wake velocity deficit. The lateral and longitudinal meandering of the wake positively correlates with the fluctuations in the flow direction and vertical direction of turbulent winds. Additionally
the breakdown of the tip vortex accelerates the recovery of velocity in the wake region.