土木与环境工程学报（中英文）2024，Vol.46Issue(3)：115-123,9.DOI:10.11835/j.issn.2096-6717.2022.019
不同入流条件及偏航角下的单风机尾流特性
Wake characteristics of single wind turbine under different inflow conditions and yaw angles
摘要
Abstract
With the rapid construction of large-scale wind farms,the upstream wind turbine will deteriorate the wind velocity in the wind turbine wake region and increase the wake turbulence,thereby reducing the power efficiency of the downstream wind turbine and aggravating the fatigue damage of the wind turbine to shorten its service life.Therefore,it is urgent to carry out the study of wind turbine wake characteristics.The main purpose of this study is to reveal the wake characteristics of a standalone wind turbine under different upstream flow conditions and with various yaw angles.Firstly,the accuracy of Large Eddy Simulation(LES)combined with Actuator Line Model(ALM)was verified by the corresponding wind tunnel test.And then,based on the LES-ALM simulation method,the effects of inlet(including velocity and turbulence intensity)and yaw angle on the turbine wake characteristics were studied,and the symmetry of the horizontal profiles of the wind turbine wake at the hub height was clarified with positive and negative yaw angles.The results show that with the increase of the background turbulence intensity,the recovery of the wind turbine wake will be accelerated.Moreover,under the same upstream flow conditions and symmetrical yaw angle,the certain symmetry of wind turbine wake velocity was also identified.When the yaw angle of the wind turbine increases,both the expansion rate of the turbine wake width and the deficit degree of the wake wind velocity would decrease.关键词
单风机尾流/偏航角/大涡模拟-致动线模型/来流条件Key words
wind turbine wake/yaw angle/LES-ALM/upstream flow conditions分类
能源科技引用本文复制引用
黄国庆,刘廷林,闫渤文,莫蕊瑜,邓晓蔚,信志强..不同入流条件及偏航角下的单风机尾流特性[J].土木与环境工程学报（中英文）,2024,46(3):115-123,9.基金项目
国家自然科学基金(51878104) （51878104）
外国专家重点支撑计划(zcsf2021008) National Natural Science Foundation of China(No.51878104) （zcsf2021008）
Key Support Program of China for Foreign Experts(No.zcsf2021008) （No.zcsf2021008）
