相同雷诺数和尖速比下缩比风力机流动特性分析

• 作 者: 黄宸武 杨科 刘强 赵晓路
• 机 构: 中国科学院工程热物理研究所,宜春学院,中国科学院风能利用重点实验室,
• 出 处: 工程热物理学报
• 发表日期: 2013年03期
• 关键词: wind turbine NREL Phase VI scaled model flow characteristic correction coefficie

针对NREL PhaseⅥ(D=10.058 m)风力机及其两个缩比模型(D=1.5 m和D=1 0 m)在叶片表面理想光滑状态,相同雷诺数(Re_(C(0.75R)≤7.42×10~5)和尖速比(λ≤10.00)下,CFD计算得到的功率系数和推力系数不同展开原因调查,通过比较和分析各模型的流场信息,揭示了引起气动特性差异的主要原因,同时采用修正缩比模型入流风速的方法得到了与原型功率系数一致的入流风速修正系数。

For Reynolds number (Re_ (C) (0.75R) ≤7.42) for the NREL Phase VI (D = 10.058 m) wind turbine and its two reduction models (D = 1.5 m and D = 10 m) × 10 ~ 5) and tip speed ratio (λ≤10.00), CFD calculation of the power factor and thrust coefficient of the expansion of the investigation, by comparing and analyzing the flow field information of each model reveals the aerodynamic characteristics caused by the difference , And at the same time, the method of modifying the inflow velocity of the reduction model was used to get the inflow velocity correction coefficient which is consistent with the prototype power coefficient.