铁道科学与工程学报2016，Vol.13Issue(8)：1447-1456,10.
考虑受电弓设备的高速列车列车风数值模拟研究
Nu merical simulation of the slipstream around a high-speed train with pantograph system
摘要
Abstract
Based on detached-eddy simulation (DES),the slipstream of a 1 ∶8th scaled train model with panto-graph system (pantograph and closed-up flow guide)was investigated.Results shows that,numerical results fit well with the wind tunnel data ,especially for drag coefficients obtained from fine grids are all within 4%of each train part to wind tunnel data.The peak values of slipstream around train are mainly occurred at streamline head, pantograph system and near wake region.The fluctuation of slipstream and turbulence intensity is relatively higher when nearer top of rail and rain surface.The closed-up flow guide has a significant influence on the drag-reduc-tion of pantograph base.However,the peak value of slipstream at side part of train is mainly due to the circum-fluence of closed-up flow guide.Due to the interruption of pantograph system to the flow on top of train,bounda-ry layers are separated and generated vortex structures,which explains relatively high aerodynamic drag of panto-graph as well as its belongings.关键词
DES/列车风/高速列车/受电弓设备/数值计算Key words
DES/slipstream/high-speed train/pantograph system/numerical simulation分类
交通工程引用本文复制引用
朱春丽,梁习锋,陈敬文,杨志刚..考虑受电弓设备的高速列车列车风数值模拟研究[J].铁道科学与工程学报,2016,13(8):1447-1456,10.基金项目
国家自然科学基金资助项目（U1134203，U1334205）；空气动力学国家重点实验室开放基金资助项目 （）
