铁道科学与工程学报2017，Vol.14Issue(11)：2273-2281,9.
高速列车头车主型线变化对列车周围流场影响研究
Research on flow field around high-speed trains affected by varying major molded lines of head car
摘要
Abstract
The aerodynamic research on an operational high-speed train was simulated by the three-dimensional Reynolds-averaged SSTk-ω two-equation turbulence model and finite volume method for investigating the flow field's variations around high-speed trains affected by varied major molded lines of head car. Computational results were validated by wind tunnel test. Research results show that local variations of vertical and horizontal sections couldn't improve wind resistance performance of these trains effectively, and that the differences between pressure fields around trains exist in areas around varied major molded lines primarily. Influences on flow field around carbody are limited, and flow field in the rear is effected by varied major molded lines of head car obviously, which causes aerodynamic loads of tail car vary distinctly. The methods and results of this study can provide an effective guideline for the aerodynamic design of high-speed trains.关键词
高速列车/头车/主型线/流场/数值模拟Key words
high-speed train/head car/major molded lines/flow field/numerical simulation分类
交通工程引用本文复制引用
何侃,侯亚捷,高广军,张洁,谢菲,张琰,张亚妮..高速列车头车主型线变化对列车周围流场影响研究[J].铁道科学与工程学报,2017,14(11):2273-2281,9.基金项目
国家重点研发计划课题资助项目(2016YFB1200403) （2016YFB1200403）
中南大学创新驱动计划资助项目(2015CX003) （2015CX003）
湖南省自然科学基金资助项目(14JJ1003) （14JJ1003）
高铁联合基金资助项目(U1534210) （U1534210）
