中国电机工程学报2025，Vol.45Issue(11)：4351-4359,9.DOI:10.13334/j.0258-8013.pcsee.232518
不同容量风力机串列布置尾流特性数值模拟
Numerical Simulation of Wake Characteristics of Wind Turbines With Different Capacities Arranged in Series
摘要
Abstract
To investigate the interaction of wakes from wind turbines with different capacities,the wake field of two horizontally axis wind turbines with different capacities arranged in series under different flow direction spacing is investigated using an actuator line model(ALM)coupled with a large eddy simulation(LES)approach,The velocity distribution,vorticity distribution,spectral characteristics and evolution of wake vortex are analyzed.Results show that as the capacity and geometric size of downstream wind turbines increase,the velocity fluctuations in the wake zone become more pronounced,the mixing intensity of the wake of the upstream and downstream wind turbines is enhanced,and the upward deflection degree of the blended vortex structure is intensified,ultimately leading to more uniform vertical wake development and elevated turbulent kinetic energy levels.With the increase of flow direction spacing,the wake of the downstream wind turbine is weakened by the entrapment and suction of the central vortex of the hub of the upstream wind turbine,and the entrapment and transport effect of the vortex of the lower blade tip and the tower shedding vortex increases.In general,the wake blending of wind turbines with different sizes and capacities can accelerate the recovery of wake to a certain extent.However,a certain development space is needed to overcome the impact of further velocity loss caused by downstream wind turbines,and the development space in this paper is 6～8D.关键词
风力机/串列布置/尾流掺混/速度分布/涡量分布/功率谱密度/尾涡演变Key words
wind turbine/serial arrangement/wake blending/velocity distribution/vorticity distribution/power spectral density/wake vortex evolution分类
能源科技引用本文复制引用
张立栋,田史琳,冯江哲,任淮辉,陈哲,王兆新..不同容量风力机串列布置尾流特性数值模拟[J].中国电机工程学报,2025,45(11):4351-4359,9.基金项目
龙源(北京)新能源工程技术有限公司科技项目(LYH-2021-17) （北京）
吉林省科技厅重点研发项目(20210203201SF).Longyuan(Beijing)New Energy Engineering Technology Co.,Ltd.Science and Technology Project(LYH-2021-17) （20210203201SF）
Key R&D Project of Jilin Provincial Department of Science and Technology(20210203201SF). （20210203201SF）
