摘要
在叶素动量理论(BEM理论)的基础上,综合考虑了风力机叶片叶尖和轮毂损失、叶栅效应、轴向速度诱导因子修正以及失速延迟修正,建立了风力机气动性能计算模型,使其准确性进一步得到提升。文中以10 kW定桨距失速型风力机叶片为例,采用上述改进的BEM理论计算模型,利用MATLAB编程,计算了其气动性能,并与国际认证的风力机计算软件GH-Bladed的计算结果进行了对比,其一致性说明了文中模型具有良好的准确性和实用性。
Based on the Blade Element Momentum Theory,taking tip loss,hub loss,cascade effect,the modification of the axial induction and three-dimensional rotation into consideration,a model for prediction of aerodynamic performance for horizontal axis wind turbine was established to make the theatrical model more accurate.The aerodynamic performance of a 10kW wind turbine was computed by MATLAB,and then compared with the result of GH-Bladed.The excellent coherence verified the accuracy and effectiveness of this model.
出处
《机械设计与研究》
CSCD
北大核心
2013年第4期126-128,132,共4页
Machine Design And Research
关键词
风力机叶片
改进BEM
气动性能
wind turbine
improved BEM theory
aerodynamic performance
