摘要
根据风力机设计标准,在考虑叶尖损失和升阻力等影响因素的条件下,采用BEM理论设计了2 MW桨距控制型风力机叶片。为验证所开发风力机叶片的气动性能,对风力机模型进行全三维CFD数值模拟。模拟结果表明,该叶片静压强、绕流特性、湍流强度等符合叶片气动特性规律,满足设计要求。叶片展向的升阻系数与二维升阻系数对比结果表明,全三维的数值模拟能更准确地反映叶片绕流的气动特性。
According the design standard of wind turbine and considering the influence of tip loss and lift-drag and other factors,Blade Element Momentum（BEM）theory was used to design the blade on a 2MW pitch-control wind turbine to meet the design requirements.To validate the aerodynamic performance of the designed wind turbine blade,full 3Dnumerical simulation is conducted.Simulation results show that the static pressure,flow characteristics and turbulence intensity are in accordance with the blade aerodynamic characteristics and meet the design requirements.Comparison of the blade spanwise lift-drag coefficients with the 2Dresults suggests that full 3Dnumerical simulation can more accurately reflect the aerodynamic performance.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2016年第4期1142-1148,共7页
Journal of Jilin University:Engineering and Technology Edition
基金
吉林省科技发展计划项目(201205095)
关键词
流体传动与控制
兆瓦级风力机叶片
气动特性
三维CFD数值模拟
绕流流场
fluid power transmission and control
MW wind turbine blade
aerodynamic performance
three-dimensional CFD numerical simulation
circle flow field
