期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：267
期号：4
页码：1-6
DOI：10.1088/1755-1315/267/4/042105
出版社：IOP Publishing
摘要：Taking bus driving out of the tunnel as the research background, study the aerodynamic characteristics of the vehicle when the vehicles subjected the sudden change wind load. Numerical wind tunnel model is established. Respectively analysis the vehicle's aerodynamic change rule of three-component coefficients in the process of vehicle driving out tunnel at different speed under wind load and without wind load. The results show the vehicle's aerodynamic force increases suddenly when the vehicle run out of the tunnel. The suddenly increasing pressure on vehicle is very adverse impact on the driver's operation and driving safety.
