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基于FLUENT的某校车车身造型空气动力学分析

作  者:
张振越;郑再象;王凯强;许鹏;陆秋懿
单  位:
扬州大学机械工程学院
关键词:
校车;空气动力学;CFD;数值模拟
摘  要:
以计算流体力学为基础,以FLUENT模块为平台,对企业某型号城市客车进行空气动力学的仿真分析,研究其外部流场分布和气动阻力产生的原因,并对于优化汽车模型给出相关建议。分析表明:挡风玻璃的后缘与顶盖前缘过渡处速度变化剧烈,在车身附近存在多个涡流区。通过增长过渡区的长度、减小过渡区的曲率、增大前窗玻璃与车顶的夹角或将前窗玻璃改进成圆弧面玻璃,有利于改善该客车流场特性、减小气动阻力。
译  名:
Based on a school bus body modelling aerodynamic analysis of FLUENT
作  者:
Zhang Zhenyue;Zheng Zaixiang;Wang Kaiqiang;Xu Peng;Lu Qiuyi;College of Mechanical Engineering Yangzhou University;
关键词:
school bus;;aerodynamics;;CFD;;the numerical simulation
摘  要:
In this paper, based on the computational fluid dynamics, with FLUENT software module as a platform, to the enterprise of a city bus for aerodynamic simulation analysis, studies the external flow field distribution and the causes of aerodynamic drag, give the related Suggestions on optimizing model car. Analysis shows that the windshield of the trailing edge and leading edge transition speed change dramatically;There are multiple eddy area near the body. Through the growth of the transition zone increase with the decrease of curvature of the transition area, length, Angle of front window and roof or will improve into circular glass window before and to improve the passenger flow field characteristics, reduce aerodynamic drag.

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