中国电力2018，Vol.51Issue(6)：144-149,6.DOI:10.11930/j.issn.1004-9649.201708056
风力机尾流扰动对大气底层边界层的影响
Effect of Wind Turbine Tail Flow Disturbance on the Atmospheric Bottom Boundary Layer
摘要
Abstract
The turbulent characteristics of wind turbine tail flow and its influence on the lower boundary layer of the atmosphere are of great importance. In this paper, the tail flow of single 5MW wind turbine under the same velocity profile but different temperature layers is numerically simulated by using Reynolds Average N-S equation (RANS). By analyzing the variation and characteristics of the meteorological factors of wind turbine downstream velocity, temperature and turbulence intensity in different settings, the influence mechanism of wind turbine operation on the lower boundary layer of atmosphere is obtained, which provides certain theoretical basis for the establishment of high efficiency wind farm. The results show that the wind flow velocity decreases significantly after passing through the wind turbine with the maximum attenuation occurrence near the hub. The temperature varies greatly under different stable layers. Meanwhile, the vortex produced by the blade rotation of the wind turbine interacts with each other, which will intensify the turbulence disturbance.关键词
风力机/温度层结/湍流扰动/气候效应Key words
wind turbine/temperature stratification/turbulence disturbance/climate effect分类
信息技术与安全科学引用本文复制引用
吴正人,李非,路婷婷,刘梅..风力机尾流扰动对大气底层边界层的影响[J].中国电力,2018,51(6):144-149,6.基金项目
中央高校基本科研业务费专项资金资助项目(2015MS114).This work is supported by Research Funds for the Central Universities (No.2015MS114). （2015MS114）
