【作者】 刘占芳； 颜世军； 张凯；

【Author】 Liu Zhanfang~1,Yan Shijun~2,Zhang Kai~3 (College of Resource and Environmental Sciences,Chongqing University,Chongqing 400044,China)

【机构】 重庆大学工程力学系；

【摘要】 应用B-L动态失速模型对风力机叶片低尖速比下的非定常气动性能进行评价,以双盘多流管气动分析模型为基础,耦合动态失速效应评价模型,给出了用于Darrieus型风力机气动性能研究的评价模型。以Sandia国家实验室17m风力机为例,考察了动态失速效应对叶片气动特性的影响,比较分析了实测的功率和风能利用系数与评价模型的预测结果,表明该气动评价模型具有很好的预测能力。更多还原

【Abstract】 Applying the B-L dynamic stall model to calculate the unsteady aerodynamic loads of the blade at low speed ratios;Based on the Double-disk multiple streamtube aerodynamic analysis method,an improved aerodynamic performance prediction model for Darrieus wind turbine was developed in this work,combining with the dynamic stall model. The aerodynamic performance of Sandia National Laboratory 17m wind turbine was calculated,the effects of dynamic stall to the aerodynamic load to the blade was observed,the power and power coefficients between the test and evaluation result were compared and analyzed,the excellent ability of the prediction model to evaluation the aerodynamic performance for VAWT was proved.更多还原