铁道科学与工程学报Issue(1)：14-19,6.
车辆底部结构对轨检车气动阻力的影响
Influence of the botto m structure on the aerodynamic drag of rail operation vehicle
摘要
Abstract
On the background of massive operation of high -speed railway and electrified railway,the failure of catenary facilities will seriously affect the normal operation of the train,causing immeasurable loss.In this case, it is of significant necessity to ensure that the rail track vehicle can arrive at the destination timely to complete the detection,maintenance and repair of the facilities.Therefore,a variety of rail operation vehicles has been suc-cessively developed in China.Based on steady N -S equation of three -dimensional and uncompressible viscous fluid,aerodynamic characteristics of the rail operation vehicle were simulated.Without changing the shape of the head,aerodynamic resistance characteristics were improved through covering up the bottom of the car body and increasing the area of bogie skirt,with 17.9% and 20.8% reduction of aerodynamic drag compared to the origi-nal design scheme,respectively.关键词
轨检车/数值计算/底部结构/气动阻力Key words
track inspection car/numerical calculation/bottom structure/aerodynamic drag分类
交通工程引用本文复制引用
黄莎,李志伟,张雷..车辆底部结构对轨检车气动阻力的影响[J].铁道科学与工程学报,2015,(1):14-19,6.基金项目
高速铁路基础研究联合基金重点资助项目（U1134203，U1334205）；中南大学研究生自主探索创新项目 （）
