排灌机械工程学报2017，Vol.35Issue(11)：975-980,6.DOI:10.3969/j.issn.1674-8530.16.0184
基于双向流固耦合水平轴风力机输出功率分析
Analysis on output power of horizontal axis wind turbine based on two-way fluid-structure interaction
摘要
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.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 sides.The pressure distributions on both the sides under fluid-structure interaction don't 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 much closer than its experimental value.关键词
双向流固耦合/水平轴风力机/叶片变形/输出功率Key words
two-way fluid-structure interaction/horizontal axis wind turbine/blade deformation/output power分类
农业科技引用本文复制引用
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):975-980,6.基金项目
内蒙古自然科学基金资助项目(2014MS0547,2015 MS0507) （2014MS0547,2015 MS0507）
