Effect of Turbulence Intensity on Aerodynamic Performance of Wind Turbine Airfoil [湍流强度对风力机翼型气动性能的影响]

作者：Yang Y.; Jia Y.; Cai C.^*; Li Q.; Wang Z.; Wang Y.; Liu H.

来源：Journal of Engineering Thermophysics, 2023, 44(2): 382-388.

• aerodynamic
• numeral calculation
• turbulence intensity
• wind turbine airfoil

In this paper, the numerical calculation of the flow field around the special airfoil of the UMY02-T01-26 wind turbine is carried out by using the Transition-SST turbulence model. The effect of turbulence intensity on the aerodynamic performance of wind turbine airfoil was investigated. The results show that the airfoil lift coefficient changes from leading edge stall to mixed stall with the turbulence intensity increase. Lift coefficient increases slightly within a certain angle of attack range. The turbulence intensity increase leads to the maximum negative pressure increase on the airfoil wall, which is within the lift coefficient nonlinear growth region for the angle of attack. When the turbulence intensity changes, the position and size of laminar separation bubbles on the wall also change. In addition, the generation and changes of laminar separation bubbles were further confirmed by flow field analysis.

• 单位
  中国科学院大学; 华北电力大学; 内蒙古大学