中南大学学报（自然科学版）2024，Vol.55Issue(5)：1702-1712,11.DOI:10.11817/j.issn.1672-7207.2024.05.004
升力翼对高速列车通过隧道时气动效应的影响
Influence of aerodynamic effect of wings on high-speed trains passing through tunnels
摘要
Abstract
Integrating wings with high-speed trains can alleviate the downward pressure exerted on the track,subsequently decrease wear and tear.However,wings seriously influence the aerodynamic performance of high-speed train when high-speed train passes through tunnels.RNG k-ε equation turbulence model was employed to simulate the aerodynamic effects caused by high-speed trains with wings(HSTW)passing through tunnels.The results show that when the train enters the tunnel,the wing tail vortex field structure grows,which affects the train surface pressure.The wake of the wings decrease pressure on the train surface,while the wings increase the train/tunnel area ratio,which increases the pressure on the train surface.Both of them affect the pressure on the train surface,forming a complex pressure distribution on the train surface.The additional wings increase the pressure magnitude on both the train surface and the tunnel wall,with the maximum increase of 5.4%on train surface and 14.1%on tunnel wall.The wings also adversely affect the micro-pressure wave,and the amplitude of the micro-pressure wave at a distance of 20 m from the tunnel exit increases by 4.1%.The results can provide guidance for the design of wing parameters.关键词
升力翼/高速列车/隧道/压力/微气压波/阻塞比Key words
wing/high-speed train/tunnel/pressure/micro-pressure wave/blockage ratio分类
交通工程引用本文复制引用
王田天,黄大飞,王钰,王军彦,施方成,朱彦,张雷..升力翼对高速列车通过隧道时气动效应的影响[J].中南大学学报（自然科学版）,2024,55(5):1702-1712,11.基金项目
国家重点研发计划项目(2020YFA0710903-C) （2020YFA0710903-C）
国家自然科学基金资助项目(52322215,52388102,52078199) （52322215,52388102,52078199）
中国国家铁路集团有限公司项目(P2021J036)(Project(2020YFA0710903-C)supported by the National Key Research and Development Plan of China （P2021J036）
Projects(52322215,52388102,52078199)supported by the National Natural Science Foundation of China （52322215,52388102,52078199）
Project(P2021J036)supported by the National Railway Group Limited of China) （P2021J036）
