不同错列布置下垂直轴风力机尾流特性  

Wake characteristics for the VAWT in different staggered arrangements

作　　者：郑智睿 王妮妮[2] 赵斌 王友昊 何锁盈 高明[1] ZHENG Zhirui;WANG Nini;ZHAO Bin;WANG Youhao;HE Suoying;GAO Ming(Shandong Engineering Laboratory for High-efficiency Energy Conservation and Energy Storage Technology&Equipment,School of Energy and Power Engineering,Shandong University,Jinan 250061,China;Shandong Electric Power Engineering Consulting Institute Co.,Ltd.,Jinan 250013,China;School of Energy and Power Engineering,Changsha University of Science&Technology,Changsha 410114,China)

机构地区：[1]山东大学能源与动力工程学院高效节能及储能技术与装备山东省工程实验室,济南250061 [2]山东电力工程咨询院有限公司,济南250013 [3]长沙理工大学能源与动力工程学院,长沙410114

出　　处：《流体机械》2023年第2期98-104,共7页Fluid Machinery

基　　金：山东省重点研发计划项目(2019GSF109084)。

摘　　要：为研究垂直轴风力机错列排布时下游风力机横向偏移距离对尾流特性的影响,获得优化的排布方式,以某H型垂直轴风力机为研究对象,建立了三维计算模型进行仿真模拟。基于单风力机模拟结果,研究了错列排布中不同偏移距离对风力机功率系数及尾流特性的影响。结果表明:当尖速比由0.5增加至1.5的过程中,风力机尾流逐渐接近于钝体尾流,下游速度恢复距离减小;风力机阵列中,错列布置可有效缓解上游风力机尾流对下游风力机的不利影响;随着横向距离的增大,下游风力机整体尾流速度分布逐渐与上游风力机的下游气流速度分布相一致,当横向间距为1倍,2倍风轮直径时,下游风力机功率系数相比单列排布提升了16.5%,37.3%。In order to study the influence of thetransverse distance of downstream wind turbine on the wake characteristics when vertical axis wind turbines are arranged in staggered arrangements,and obtain the optimal arrangement,this paper referred to a H-type vertical axis wind turbine and established a three-dimensional calculation model.Based on the simulation results of single wind turbine,the effects of different transverse distances in staggered arrangements on the power coefficient and wake characteristics of wind turbines are studied.The results showed that the wind turbine wake gradually approaches to the bluff body wake,and the downstream velocity recovery distance decreases with the increase of tip speed ratio from 0.5 to 1.5.In the wind turbine array,staggered arrangements can effectively relieve the adverse impact of the upstream wind turbine wake on the downstream wind turbine.With the increase of the transverse distance,the downstream wind turbine wake distribution is gradually consistent with the downstream velocity of the upstream wind turbine.When the transverse spacing is 1 and 2 times of the wind turbine diameter,the power coefficient of the downstream wind turbine enhances by 16.5%and 37.3%compared with the single row arrangement.

关 键 词：垂直轴风力机 错列布置 尾流特性 功率系数 数值模拟 

分 类 号：TH43[机械工程—机械制造及自动化]