集装箱半挂运输车气动特性的数值仿真及改进  

Numerical Simulation and Improvement of the Aerodynamic Characteristics of Semi-trailer Container Truck

作　　者：汪孛[1] 谷正气[1] 贾新建[1] 姜乐华[2] 彭亚美[1] 

机构地区：[1]湖南大学汽车车身先进制造国家重点实验室,长沙410082 [2]国防科学技术大学指挥军官基础教育学院,长沙410073

出　　处：《汽车工程》2010年第5期388-393,共6页Automotive Engineering

基　　金：汽车车身设计制造国家重点实验室开放基金(30815005);国家863计划项目(2007AA04Z122);湖南省科技攻关计划重点项目(O6FJ2001)资助

摘　　要：为降低车身的气动阻力,文中应用CFD软件对某款集装箱半挂运输车简化模型进行数值仿真,以揭示车身周围空气流动的机理。首先分析了原车型的车身周围流场的流动特性,然后加装导流罩并研究改变其圆角半径和驾驶室与集装箱的间距对整车气动阻力系数的影响规律。For reducing the aerodynamic drag of vehicle body,a numerical simulation on the simplified model for semi-trailer container truck is conducted by using CFD software to reveal the mechanism of air flow around vehicle in this paper.The flow characteristic of the external flow field around the original truck is analyzed.Then cab-roof fairing is added,and the law of how the changes of the radius of fairing and the gap between cab and container affect the aerodynamic drag coefficient of vehicle is studied.

关 键 词：集装箱半挂运输车 气动阻力系数 CFD 导流罩 

分 类 号：U461.1[机械工程—车辆工程]