风力机叶片绕流的PIV测量研究

来源 :2012年全国环境风工程学术会议 | 被引量 : 0次 | 上传用户:itour123
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空气动力研究与发展中心低速空气动力研究所利用工程型大风洞开口试验段(试验段直径3.2m),采用高分辨率CCD相机(4008像素×2672像素),以NREL UAE Phase VI风力机叶片1/8缩比模型为实验对象,展开针对风力机叶片绕流的PIV测量,获取了叶片绕流的随风轮转速、桨距角的基本特征和变化规律.实验结果中叶片的前缘分离、附着涡、脱离涡规律明显,揭示了风力机叶片绕流的基本规律,为风力机叶片的动态失速和失速延迟分析提供了重要的基础观测数据.
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