均匀人流风力机模型尾流特性实验研究

工程热物理学报 , 2015, 36(8): 1682-1686.

1.中国石油大学(华东),青岛 266580;中国科学院工程热物理研究所,北京 100190

2.中国科学院工程热物理研究所,北京 100190;中国科学院风能利用重点实验室,北京 100190

3.中国科学院工程热物理研究所,北京 100190;中国科学院风能利用重点实验室,北京 100190

基金项目: 科技部863课题(No.2012AA051303) 中央高校基本科研业务费专项资金资助(No.15CX02022A) 国家自然科学基金(No.51222606)

Experimental Study of Characteristics of Wake of Wind Turbine Model in Uniform Inflow

本文利用热线风速仪测量了低速风洞内均匀入流风况下风力机模型后不同流向位置处的尾流流场.通过分析平均速度和湍流强度廓线,可以发现随着远离转子,湍流强度和速度亏损逐渐减小,尾流区轴向速度逐渐增大.由于塔架塔影效应影响,转子下侧速度偏低,湍流强度偏大,因而不可忽略塔架对于小型风力机近尾流特性的影响.

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