客车基本形体的空气动力学特性研究  

Aerodynamics Research for Bus Basic Model

作　　者：江涛[1] 高嵩[1] 汪怡平[1] 邓亚东[1] 

机构地区：[1]武汉理工大学现代汽车零部件技术湖北省重点实验室,武汉430070

出　　处：《武汉理工大学学报（交通科学与工程版）》2015年第6期1233-1236,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目(批准号:51305312);武汉理工大学自主创新研究基金项目(批准号:2013-IV-114)资助

摘　　要：目前空气动力学减阻设计与研究在轿车和货车领域得到了广泛运用．而对用于城际交通的高速客车，开展空气动力学研究也有较大的意义．构建了一种在长宽高和离地间隙上符合工程实际的客车基本模型，对基本模型进行空气动力学仿真研究，对比了不同长度、不同前部倾斜角度下流场和风阻变化的趋势．结论是长度对风阻的影响较小，从7～14m变化时风阻值先下降再上升，波动在2．2％以内；前部造型倾斜角对风阻的影响较大，从90°到30°变化时风阻值下降，降低了14．7％．因此在对城际高速客车进行空气动力学研究时，需要重视头部造型的设计．At present the aerodynamics are widely uesd in car and truck design. However, for the intercity bus with higher speed other than interurban bus, the aerodynamics research are also important. A basic bus model in accordance with products size and ground clearance was created, and got aerodynamics simulation. The relationship between different length and different dip angle with drag coefficient was solved by simulation. The conclusion is：the length has little effect on drag coefficient, from 7 m to 14 m the drag first decline then rise up,below 2.2% ;the front dip angle has great effect on drag coefficient,from 90° to 30° the drag decline 14.7%. So when design the aerodynamics performance of the intercity bus,it＇s necessary to pay attention to the front style.

关 键 词：客车 空气动力学 基本模型 流体仿真 

分 类 号：U461.1[机械工程—车辆工程]