扰流板对风电机组叶片三维气动性能影响的研究STUDY ON INFLUENCE OF SPOILER ON THE 3D AERODYNAMIC PERFORMANCE OF WIND TURBINE BLADES
葛文澎,吴迪,苗得胜,王亚娥
摘要(Abstract)：
对于风电机组叶片，由于大型叶片根部翼型较厚，易出现流动分离现象，为了提高叶片气动性能，利用雷诺平均方程(RANS)，采用SST k-ω湍流模型进行了叶片三维气动性能的仿真模拟，并与Bladed软件的计算值进行对比，验证了该方法的可行性。仿真模拟结果显示：叶片根部压力面和吸力面压力曲线交叉，严重影响了叶片轴端的输出功率，而安装扰流板的叶片根部压力面流体速度呈梯度下降，压力增大，同时提高了吸力面的流速，从而增大了叶片两面的压力差。在低于额定风速条件下，扰流板可以提高叶片轴端的输出功率2.3%～2.5%，推力增长仅为2.0%；扰流板安装高度越高，其轴端输出功率提升效果越好。
关键词(KeyWords)： 风电机组;大型叶片;扰流板;气动性能;数值模拟
基金项目(Foundation): 国家重点研发计划重点专项(2018YFB1501100)
作者(Author): 葛文澎,吴迪,苗得胜,王亚娥
DOI: 10.19911/j.1003-0417.tyn20210510.01
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