立轴风力机叶片动态失速特性与气动性能分析  

DYNAMIC STALL CHARACTERISTIC AND AERODYNAMIC PERFORMANCE PREDICTION FOR BLADE OF VAWT

作　　者：刘占芳[1] 颜世军[1] 张凯[1] 邓智春[1] 

机构地区：[1]重庆大学资源及环境科学学院,重庆400044

出　　处：《太阳能学报》2012年第2期204-209,共6页Acta Energiae Solaris Sinica

基　　金：重庆市科技攻关计划(CSTC2008AC3105)

摘　　要：结合立轴风力机运行时叶片的非定常气动特性,对B-V、B-L和ONERA动态失速模型进行适当简化和修正,结合实验数据对比分析俯仰运动时动态失速对翼型气动特性的影响。在双盘多流管气动分析方法的基础上,结合修正的动态失速模型,对Sandia 17m风力机进行气动性能计算,比较不同模型对叶片非定常气动特性的评价结果,与实测气动载荷和功率对比表明,B-L模型整体上对立轴风力机气动性能预测较好。The B-V, B-L and ONERA dynamic stall model were modified in this work, considering the unsteady aerodynamic characteristic for blade of vertical-axis wind turbine（VAWT）. The effect of dynamic stall characteristic on aerodynamic performance of airfoil with pitching movement was analyzed in these models, compared with experiment data. Based on the double-multiple streamtube method in aerodynamic analysis, an improved aerodynamic performance prediction model for VAWT was developed, combining with the modified dynamic stall model. The aerodynamic performance of 17m VAWT by Sandia National Laboratory was calculated. The unsteady aerodynamic performance prediction results for the blade were analyzed. The B-L dynamic stall model shows a better capacity to capture dynamic stall effect on a whole, by compared experiment date of aerodynamic loads and rotor power with calculating results.

关 键 词：立轴风力机 动态失速 双盘多流管 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]