计算力学学报Issue(5)：675-680,6.DOI:10.7511/jslx201405022
基于 CFD 技术的垂直轴风力机动态尾流特性研究
Analysis of vertical axis wind turbine dynamic wake with CFD technology
摘要
Abstract
The simulation of the vertical axis wind turbine which was designed by McMaster University is conducted under various tip speed ratio with the CFD software ,and the results agree well with the wind tunnel experiments .In the near wake ,comparing with the turbine with only one blade ,the dragged blade tip eddies of the upwind blade in normal running wind turbine influences the downwind blade’s aerody-namic characters:not only declines its peak value of the torsion torque ,but also delays its occurrence time .The modified wind turbine has equal peak torsion torque value output with normal turbine ,but less valley value ,and the modified one produces less pushing force parallel to the wind ;in the far wake ,the wind profile theory was added into the simulation of the 200kW vertical axis wind turbines in the wind farm of Falkenberg ,Sweden .The results reveal the upwind wind turbine produced intensive far wake flow in the upper and lower ends of the blades ,and the downwind turbine’ aerodynamic character was affected in the lower half parts of the blades .Influenced by the far wake in the wind farm ,the downwind turbine produces less energy .关键词
尾流理论/涡量/湍流/风速轮廓线/功率流Key words
wake theory/vorticity/turbulence/wind profile/power flow分类
能源科技引用本文复制引用
蔡新,潘盼,朱杰,顾荣蓉,张建新..基于 CFD 技术的垂直轴风力机动态尾流特性研究[J].计算力学学报,2014,(5):675-680,6.基金项目
常州市科技计划（CJ20110018）资助项目． （）
