摘要
为了研究双排涡流发生器高度参数对风力机气动性能的影响,以NREL Phase VI风力机叶片为模型,采用CFD方法分别对加装单排涡流发生器、不同高度参数双排涡流发生器共10种模型进行模拟,分析其在不同风速、转速下对风力机叶片气动性能的影响。计算结果表明,所有不同高度参数双排涡流发生器在不同转速、来流风速时,均能提升风力机叶片气动性能,改善风力机流场。其中,第一排涡流发生器与第二排涡流发生器高度差越大时,双排涡流发生器整体流动控制效果最好,即最佳高度参数Case 4(第一排涡流发生器高度3 mm,第二排涡流发生器高度9 mm)前低后高组合。同时,最佳高度参数双排涡流发生器和单排涡流发生器相比能进一步延迟流动分离,取得更好的流动控制效果。
In order to study the influence of the height parameters of the double-row vortex generator on the aerodynamic performance of the wind turbine,the NREL Phase VI wind turbine blade is used as the model,and the CFD method is used to simulate the installation of the single-row vortex generator and the double-row vortex generator with different height parameters.A total of 10 models were simulated to analyze their effects on the aerodynamic performance of wind turbine blades at different wind speeds and speeds.The calculation results show that all double-row vortex generators with different height parameters can improve the aerodynamic performance of wind turbine blades and improve the flow field of wind turbines at different speeds and incoming wind speeds.Among them,when the height difference between the first row of vortex generators and the second row of vortex generators is larger,the overall flow control effect of the double-row vortex generators is the best,that is,the best height parameter case 4(the height of the first row of vortex generators is 3 mm,and the height of the second row of vortex generators is 9 mm).At the same time,the optimal height parameter double-row vortex generator can further delay the flow separation and achieve better flow control effect than the single-row vortex generator.
作者
杨瑞
杨涛
曾学仁
方亮
包广超
田楠
YANG Rui;YANG Tao;ZENG Xue-ren;FANG Liang;BAO Guang-chao;TIAN Nan(School of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Gansu Branch of China Three Gorges New Energy(Group)Company Limited,Lanzhou 730050,China)
出处
《液压气动与密封》
2024年第3期23-29,共7页
Hydraulics Pneumatics & Seals
基金
国家自然科学基金(51965034)。
关键词
风力机
数值模拟
涡流发生器
气动性能
wind turbine
numerical simulation
vortex generator
aerodynamic performance
