摘要
为降低某货车的气动阻力,本文对导流罩形式、遮阳板角度以及挂车高度进行了空气动力特性的数值模拟,得到了货车模型外流场的压力云图和速度云图,分析了各种方案的减阻机理。通过分析比较,改变导流罩的形式和遮阳板角度可以有效的减少阻力效果,挂车高度对阻力影响不大。分析结果可以对后续的匹配设计提供参考依据。
In order to reduce the aerodynamic drag of a truck, the numerical simulation has been done regarding the aerodynamic characteristics of the shroud form, the sun visor angle and the trailer height. The pressure cloud map and velocity cloud map of the external flow field of the truck model are obtained. The drag reduction mechanism of the variety schemes has been analyzed. Through analysis and comparison, changing the form of the shroud and the angle of the sun visor can effectively reduce the drag effect, and the height of the trailer has little effect on the resistance. The analysis results can provide a reference for subsequent matching design.
作者
展新
陆增俊
赖凡
刘永宏
许恩永
Zhan Xin;Lu Zengjun;Lai Fan;Liu Yonghong;Xu Enyong(Commercial Vehicle Tech Center,Dong Feng Liuzhou Motor Co.,Ltd.,Guangxi Liuzhou 545005)
出处
《汽车实用技术》
2020年第9期157-160,共4页
Automobile Applied Technology
基金
广西制造系统与先进制造技术重点实验室项目(17-259-05-010Z)
柳州市科学研究与计划开发项目(2018AA20301)
广西青年科学基金项目(2018GXNSFBA281012)。
关键词
货车
气动阻力
匹配优化
数值仿真分析
Truck
Aerodynamic drag
Matching optimization
Numerical simulation analysis
