可再生能源2023，Vol.41Issue(12)：1612-1618,7.
基于BEM与CFD数值模拟的风力机叶片气动性能分析
Wind turbine blade aerodynamic performance analysis based on BEM and CFD numerical simulation
摘要
Abstract
In order to clarify the important influence of rotor tip loss effect and dynamic stall effect on the prediction of wind turbine aerodynamic performance,the present study carried out two methods,i.e.the computational fluid dynamics(CFD)and blade element momentum(BEM)theory,to analyze and predict the aerodynamic performance of blades under different wind fields.The unsteady aerodynamic characteristics of blade surface are studied for three-dimensional rotation situation.The results show that,under the action of the centrifugal force and Coriolis force,the flow separation occurs on the suction surface of blades.With the increasing wind speed,the stall area gradually increases.The suction side of the leading edge of the blade airfoil section is greatly affected by the wind speed.Under the condition of unsteady incoming flow,the blade tip,especially the leading edge,is sensitive to the incoming flow.By comparing the predictions of different tip loss correction models for the blade load,it is found that the blade root and tip correction made for the BEM is close to the CFD results,while the difference still exists to a certain extent.关键词
风力机/非定常气动特性/分离流/BEM/叶根叶尖损失修正Key words
wind turbine/non-constant aerodynamic characteristics/separation flow/BEM/root and tip loss correction分类
能源科技引用本文复制引用
史先路,赵凡,赵凯,赵军华..基于BEM与CFD数值模拟的风力机叶片气动性能分析[J].可再生能源,2023,41(12):1612-1618,7.基金项目
国家自然科学基金(12102145) （12102145）
江苏省自然科学基金(BK20210444) （BK20210444）
中央高校基本业务费(JUSRP121042). （JUSRP121042）
