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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2012, Vol. 31 ›› Issue (3): 465-468.DOI: 10.3969/j.issn.1674－0696.2012.03.25

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隧道超速超车气动特性研究

高龙，周海超   

  1. 江苏大学汽车与交通工程学院，江苏镇江212013
  • 收稿日期:2011-10-18 修回日期:2011-11-23 出版日期:2012-06-15 发布日期:2015-03-12
  • 作者简介:高龙(1986—)，男，安徽太和人，硕士研究生，主要从事车辆结构仿真分析方面的研究。E-mail:gy8412845@163.com。

Research on Aerodynamic Characteristics During Speeding and Overtaking Processes in Tunnel

Gao Long,Zhou Hai-chao   

  1. School of Automobile ＆ Traffic Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China
  • Received:2011-10-18 Revised:2011-11-23 Online:2012-06-15 Published:2015-03-12

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摘要： 利用先进的CFD动网格技术实现了汽车在隧道中超速、超车行驶过程的二维非稳态空气动力特性数值模拟， 并与相同条件下非隧道行车时的仿真结果进行对比。研究结果表明:汽车在隧道中超速、超车时，流场和压力场变 化幅度较大，超车车辆之间气动干扰影响较大，汽车的行驶安全性降低。

关键词: 公路隧道, 汽车空气动力学, 数值模拟, 超速超车, 动网格

Abstract: By virtual of advanced CFD dynamic mesh technology，the 2-D transient simulation of vehicle’s speeding process and overtaking process were realized，and the vehicles’s aerodynamic characteristics were obtained． A comparison of aerodynamic characteristics between the road tunnel and non-tunnel road was presented． The results show that the flow field and pressure field change greatly; the aerodynamic effect is larger than in non-tunnel condition; the safety performance of the vehicles is reduced during the process of speeding and overtaking in tunnel．

Key words: road tunnel, automotive aerodynamics, numerical simulation, speeding and overtaking, dynamic mesh

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