大客车尾翼的数值模拟与风洞试验  

Numerical Simulation and Wind Tunnel Testing of Coach Rear Spoiler

作　　者：杨永柏[1] 王靖宇[2] 庄国华 YANG Yongbai;WANG Jingyu;ZHUANG Guohua(College of Mechanical Engineering and Automation,Huaqiao University,Xiamen 361021,China;State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130025,China;Xiamen Kinglong United Automotive Industry Limited Company,Xiamen 361023,China)

机构地区：[1]华侨大学机电及自动化学院,福建厦门361021 [2]吉林大学汽车动态模拟国家重点实验室,吉林长春130025 [3]厦门金龙联合汽车工业有限公司,福建厦门361023

出　　处：《华侨大学学报（自然科学版）》2024年第4期454-460,共7页Journal of Huaqiao University(Natural Science)

基　　金：华侨大学高层次人才科研启动项目(09BS613)。

摘　　要：为了研究尾翼对大客车气动特性的影响,采用数值模拟和风洞试验相结合的方法,从造型方案、位置布置、倾角变化等方面对大客车量产实车的3种尾翼进行研究。结果表明:布置在车身后围,与后围曲面过渡平顺,距后围距离恰当,倾角合适的尾翼能达到较好的减阻效果,可减小11.8%的气动阻力,产生一定节能效果,并具有后窗除尘的作用。To investigate the effect of rear spoiler on the aerodynamic characteristics of a coach,a combined method of numerical simulation and wind tunnel testing was employed.This study examined three types of rear spoiler for mass produced coaches in terms of design schemes,positional arrangements and variations in inclination angles.The results indicated that a rear spoiler positioned on the rear wall of the coach body,with a smooth transition to the curved surface of the rear wall,an optimal distance from the rear wall,and an appropriate inclination angle,achieved significant drag reduction.Specifically,it reduced aerodynamic drag by 11.8%,produced energy saving effects and facilitated dust removal in rear window.

关 键 词：大客车 尾翼 风洞试验 气动特性 数值模拟 

分 类 号：U461.1[机械工程—车辆工程]