水平轴风力机叶片风雨作用下气动性能分析  

Study on Aerodynamic Performance of Horizontal Axis Wind Turbine Under Combined Action of Wind and Rain

作　　者：孙芳锦 曾倩 刘甜甜 张大明 SUN Fangjin;ZENG Qian;LIU Tiantian;ZHANG Daming(School of Civil Engineering,Guilin University of Technology,Guilin Guangxi 541004,China;School of Information Science and Engineering,Guilin University of Technology,Guilin Guangxi 541004,China;Guangxi Key Laboratory of Geotechnical Mechanics and Geotechnical Engineering,Guilin Guangxi 541004,China;College of Civil Engineering,Liaoning Technical University,Fuxin Liaoning 123000,China;Guangxi Key Laboratory of Embedded Technology and Intelligent System,Guilin Guangxi 514004,China)

机构地区：[1]桂林理工大学土木工程学院,广西桂林541004 [2]桂林理工大学信息科学与工程学院,广西桂林541004 [3]广西岩土力学与岩土工程重点实验室,广西桂林541004 [4]辽宁工程技术大学土木工程学院,辽宁阜新123000 [5]广西嵌入式技术与智能系统重点实验室,广西桂林541004

出　　处：《兰州工业学院学报》2024年第3期1-6,共6页Journal of Lanzhou Institute of Technology

基　　金：国家自然科学基金(52178468,52268023);广西自然科学基金(2019GXNSFAA245037);广西青年创新人才科研专项(桂科AD19245012);广西绿色建材与建筑工业化重点实验室自主课题(桂科能19-J-21-14);广西岩土力学与工程重点实验室项目(桂科能19-Y-21-2);广西研究生教育创新计划项目(YCSW2023347)。

摘　　要：基于N-S方程和欧拉-拉格朗日法对NREL 5 MW风机叶片在风雨共同作用下的气动性能展开研究。通过数值模拟不同风速对雨滴轨迹的影响,探究风力机叶片表面在不同风速下的雨滴收集情况和在风雨共同作用下风力机叶片表面的压力分布。结果表明:风速对雨滴在流场中的运动轨迹影响十分显著;无论何种风速,风力机收集到的绝大多数雨滴直径范围为1.75~3.75 mm,占有率在85%左右;相较与纯风场,风力机在风雨共同作用下,雨滴的撞击会增强风力机叶片表面的压力。研究结果可为风机的叶片设计和在风电场中的合适布置提供参考。Based on the N-S equation and Euler-Lagrangian method,this paper studies the aerodynamic performance of NREL 5MW fan blades under wind and rain.By numerically simulating the influence of different wind speeds on raindrop trajectories,investigating the raindrop collection on the wind turbine blade surface at different wind speeds and the pressure distribution on the wind turbine blade surface under the joint action of wind and rain.The results show that the wind speed has a significant effect on the trajectory of raindrops in the flow field.Regardless of the wind speed,the vast majority of raindrops collected by the wind turbine range in diameter from 1.75 to 3.75 mm,with a share of about 85%;compared with pure wind field,under the combined action of wind and rain,the impact of raindrops will increase the pressure on the surface of wind turbine blades.The research results provide an effective reference for the design of wind turbine blades and their proper arrangement in wind farms.

关 键 词：水平轴风力机 风雨作用 欧拉-拉格朗日法 气动性能 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]