风力机翼型尾迹干扰的PIV研究

李茂义; 袁巍; 李志平; 盖峰; 陆亚钧

风力机翼型尾迹干扰的PIV研究

北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室,北京 100191

基金项目: 国家重点基础研究发展规划(2007CB714600)

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出版历程
- 收稿日期: 2009-12-09
- 修回日期: 2010-06-11
- 刊出日期: 2011-02-28

Experimental investigation of airfoil-wake interaction of wind turbines using PIV

National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Jet Propulsion,Beijing University of Aeronautics and Astronautics, Beijing 100191,China

摘要

摘要: 实验采用粒子图像测速仪PIV(particle image velocimetry)技术对风力机翼型尾迹的气动干扰进行了研究.针对尾迹对翼型前缘、叶背和叶盆的不同激励,对下游翼型的流场结构进行了分析.结果表明:有益的尾迹激励为不明显改变下游翼型主流区的非定常激励;当上、下游翼型处于相同攻角和适当轴向距离时,在翼型前缘的尾迹激励使得翼型的叶背分离得到明显抑制.
- PIV(粒子图像测速仪)技术 /
- 风力机翼型 /
- 气动干扰 /
- 非定常激励 /
- 流场结构
Abstract: The airfoil-wake aerodynamic interaction of wind turbines was experimentally investigated using PIV(particle image velocimetry) technology.It analyzed the flow structure of downstream airfoil when the wake excited the leading edge,suction side and pressure side of airfoil,respectively.The results indicate that the helpful wake excitation is unsteady excitation which doesnt change main flow of downstream airfoil distinctly.The separation area at the suction side is restrained under the wake excitation at leading edge of airfoil when the upstream and downstream airfoils have the same incidence angle and appropriate axial-spacing.
- PIV(particle image velocimetry) technology /
- airfoil of wind turbine /
- aerodynamic interaction /
- unsteady excitation /
- flow field structure

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参考文献(14)

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