Numerical Analysis of Urban-Rail Vehicle/Tunnel Aerodynamic Interaction

作     者：Haoran Meng Nianxun Li Xukui Shen Hong Zhang Tian Li 

作者机构：Beijing Infrastructure Investment Co.Ltd.Beijing100101China Beijing Rail Transit Technology Equipment Group Co.Ltd.Beijing100070China Department of Mechanical EngineeringTsinghua UniversityBeijing100084China State Key Laboratory of Rail Transit Vehicle SystemSouthwest Jiaotong UniversityChengdu610031China 

出 版 物：《Fluid Dynamics & Materials Processing》 (流体力学与材料加工(英文))

年 卷 期：2025年第21卷第1期

页      面：161-178页

核心收录：

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

基　　金：supported by the Beijing Postdoctoral Research Foundation(No.2023-ZZ-133) Scientific Research Foundation of Beijing Infrastructure Investment Co.,Ltd.(No.2023-ZB-03) Fundamental Research Funds for the Central Universities(No.2682023ZTPY036) 

主　　题：Urban-rail vehicle vehicle speed aerodynamic force surface pressure numerical simulation 

摘      要：The pressure wave generated by an urban-rail vehicle when passing through a tunnel affects the comfort of passengersand may even cause damage to the train and related tunnel ***,controlling the trainspeed in the tunnel is extremely *** this study,this problem is investigated numerically in the frameworkof the standard k-εtwo-equation turbulence *** particular,an eight-car urban rail train passingthrough a tunnel at different speeds(140,160,180 and 200 km/h)is *** results show that the maximumaerodynamic drag of the head and tail cars is most affected by the running *** pressure at selectedmeasuring points on the windward side of the head car is very high,and the negative pressure at the side windowof the driver’s cab of the tail car is also very *** the head car to the tail car,the pressure at the same heightgradually *** positive pressure peak at the head car and the negative pressure peak at the tail car aregreatly affected by the speed.