| 隧道超速超车气动特性研究 |
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| 引用本文： | 高龙,周海超.隧道超速超车气动特性研究[J].重庆交通大学学报(自然科学版),2012,31(3):465-468,472. |
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| 作者姓名： | 高龙 周海超 |
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| 作者单位： | 江苏大学汽车与交通工程学院,江苏镇江,212013 |
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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。
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| 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 |
Research on Aerodynamic Characteristics During Speeding and Overtaking Processes in Tunnel |
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| Gao Long
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Zhou Haichao.Research on Aerodynamic Characteristics During Speeding and Overtaking Processes in Tunnel[J].Journal of Chongqing Jiaotong University,2012,31(3):465-468,472. |
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| Authors: | Gao Long Zhou Haichao |
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| Institution: | (School of Automobile & Traffic Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China) |
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| 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. |
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| Keywords: | road tunnel automotive aerodynamics numerical simulation speeding and overtaking dynamic mesh |
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