风沙环境下风速对风力机叶片冲蚀磨损的数值模拟

Numerical Simulation of Erosion and Wear of Wind Turbine Blades by Different Wind Speeds Under Wind Carrying Sand Environment

针对水平轴风力发电机叶片的冲蚀磨损问题,利用FLUENT中的离散相模型,以风速作为影响因素,对叶片冲蚀率的分布进行了数值模拟。结果表明,风速增大,导致叶片磨损率增大,叶片中部和叶尖都有明显磨损,且叶尖处磨损最为严重,模拟计算值与实验结果吻合,验证了该数学模型和计算方法的正确性。

Aiming at the erosion and wear of horizontal axis wind turbine blades,taking the wind speed as an influencing factor,the numerical simulation of the distribution of blade erosion rate was carried out with the discrete phase model in Fluent.The results show that the increase of wind speed leads to the increase of blade wear rate,and the middle part and tip of the blade have obvious wear,and the wear at the tip is the most serious.The simulation results are consistent with the experimental results,which verifies the correctness of the mathematical model and calculation method.