Analysis on output power of horizontal axis wind turbine based on two-way fluid-structure interaction
WANG Zhanyang1, ZHANG Liru1,2, HE Lingli2, WANG Jianwen1,2, HU Yajuan3
1.College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China; 2.Key Laboratory of Wind and Solar Power Energy Utilization Technology, Ministry of Education and Inner Mongolia Construction, Hohhot, Inner Mongolia 010051, China; 3.Technology Center of Solid Waste and Chemical Management, Inner Mongolia Autonomous Region Environmental Protection Department, Hohhot, Inner Mongolia 010011, China
Abstract：Since fluid-structure interaction of wind turbine can affect its aerodynamic performance, two-way fluid-structure interaction simulations were carried out to analyze effects of the interaction on the output power of a wind turbine under the rated condition based on CFX and ANSYS. The pressure distribution on blade surface, blade deformation, torque on the rotor and output power are compared and analyzed before and after the fluid-structure interaction are considered. The results show that under fluid-structure interaction conditions the positive pressure on the pressure side remains unchanged basically, and the negative pressure on the suction side is significantly reduced, resulting in an increased pressure difference across both the sides. The pressure distributions on both the sides under fluid-structure interaction donot show a significant change from the case without fluid-structure interaction. The blade deformation mainly occurs near the blade tip, and increases nonlinearly towards the tip. Furthermore, the deformation is intensified in fluid-structure interaction, and mainly is waving deformation along the axial direction. The torque is larger in fluid-structure interaction, in consequence, the wind turbine output power arises by 1.6% to reach 383 W compared with the case without fluid-structure interaction, which is closer to its experimental value.
王占洋, 张立茹,, 贺玲丽, 汪建文,, 胡雅娟. 基于双向流固耦合水平轴风力机输出功率分析[J]. 排灌机械工程学报, 2017, 35(11): 975-980.
WANG Zhanyang, ZHANG Liru,, HE Lingli, WANG Jianwen,, HU Yajuan. Analysis on output power of horizontal axis wind turbine based on two-way fluid-structure interaction. Journal of Drainage and Irrigation Machinery Engin, 2017, 35(11): 975-980.
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