CAJ | 학술논문

基于（势流）涡方法开发了水平轴风力机叶片气动性能分析程序，采用自由尾迹模型对增加 O 型小翼和 L型小翼后的叶片气动设计性能进行分析，计算了风力机设计工况下的涡位置及诱导速度分布等气动性能参数，对比了增加小翼后功率输出情况。结果表明，增加小翼后风力机叶片在设计工况下功率系数有明显增加，下风向小翼功率提升高于上风向小翼。
기우（세류）와방법개발료수평축풍력궤협편기동성능분석정서，채용자유미적모형대증가 O 형소익화 L형소익후적협편기동설계성능진행분석，계산료풍력궤설계공황하적와위치급유도속도분포등기동성능삼수，대비료증가소익후공솔수출정황。결과표명，증가소익후풍력궤협편재설계공황하공솔계수유명현증가，하풍향소익공솔제승고우상풍향소익。
A design and analysis procedure for rotor blades is developed based on vortex theo-ry.Based on free wake model,the aerodynamic performances of horizontal axis wind turbine ro-tor by adding spiroid O winglets and L winglet at the tip of the blade are studied numerically,the vortex location and induced velocity distribution in different conditions are investigated.The results show that the presence of winglet at the tip of the wind turbine blade improves the power coefficient at the design wind speeds,and downwind winglets are superior to upwind ones with respect to optimization of power.