Influence of Turbulence Intensity on the Aerodynamic Performance of Wind Turbines Based on the Fluid-Structure Coupling Method
Influence of Turbulence Intensity on the Aerodynamic Performance of Wind Turbines Based on the Fluid-Structure Coupling Method
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DOI：
10.3390/app13010250
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发表时间：
2022-12
期刊：
影响因子：
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通讯作者：
Xing Zheng;Yu Yao;Zhenhong Hu;Ziying Yu;Siyuan Hu
中科院分区：
文献类型：
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作者：
Xing Zheng;Yu Yao;Zhenhong Hu;Ziying Yu;Siyuan Hu
风力涡轮机叶片在湍流环境中的变形和振动是不容忽视的，因此，为了更好地保证风力涡轮机叶片的安全性，研究风力涡轮机叶片在湍流风作用下的气弹响应是必不可少的。本文以NREL 5 MW风力涡轮机叶片为研究对象，采用精确的三维铺层设计，首先基于商业软件星星CCM+和ABAQUS的联合仿真，采用双向流固耦合技术，对均匀风况下的风力涡轮机进行了仿真，得到了风力涡轮机叶片的推力、扭矩、结构变形和力的角度和FAST进行了比较，具有良好的精度和一致性低于额定风速。其次，研究了10 m/s时不同湍流强度的湍流风的气动性能、流场分布和结构响应。结果表明，湍流强度对风力涡轮机叶片的振幅影响较大，叶片应力分布较为集中，进而影响风力涡轮机叶片的稳定性和安全性，不利于风力涡轮机的正常运行。
The deformation and vibration of wind turbine blades in turbulent environment cannot be ignored; therefore, in order to better ensure the safety of wind turbine blades, the study of air-elastic response of wind turbine blades under turbulent wind is indispensable. In this paper, the NREL 5MW wind turbine blades are modeled with accurate 3D lay-up design, firstly, based on the joint simulation of commercial software STAR CCM+ and ABAQUS, the two-way fluid-solid coupling technology, the wind turbine under uniform wind condition is simulated, and the results from thrust, torque, structural deformation and force perspective and FAST are compared with good accuracy and consistency below the rated wind speed. Secondly, the aerodynamic performance, flow field distribution and structural response of turbulent winds with different turbulence strengths at 10 m/s were studied. The results show that the turbulence intensity has a greater impact on the amplitude of the wind turbine blade, and the stress distribution of the blade is more concentrated, which in turns affects the stability and safety of the wind turbine blade and is not conducive to the normal operation of the wind turbine.