开窗对汽车气动力和FE影响的模拟研究  

Simulation Study on Effect of Window Opening on Vehicle Aerodynamics and Fuel Economy

作　　者：牛润萍[1] 贾小婷 NIU Run-ping;JIA Xiao-ting(School of Environment and Energy Engineering,Beijing University of Civil Engineering and Architectuer,Beijing 100044,China)

机构地区：[1]北京建筑大学环境与能源应用工程学院,北京100044

出　　处：《计算机仿真》2023年第5期202-207,共6页Computer Simulation

摘　　要：随着我国基础建设事业的发展,家用汽车成了人们出行的主要交通工具,为了研究汽车开窗行驶对气动力和燃油经济性的影响,从人类行为的角度出发节约能源。利用数值模拟方法使用FLUENT软件得到了20种开窗方案的气动力系数。通过对比分析发现开窗方案与气动力之间存在一定的规律,然后进一步讨论了开窗方案对燃油经济性的影响,发现开窗方案2、方案5、方案16的燃油增长率最小,适合在夏季出行时使用,既可以通风又可以减小能耗。With the development of China's infrastructure construction,family cars have become the main means of transportation for people to travel.The influence of automobile driving with window opening on aerodynamics and fuel economy should be studied,so that the energy consumption can be saved from the perspective of human behavior.In this paper,the aerodynamic coefficients of 20 windowing schemes were obtained by numerical simulation.Through comparative analysis,it was found that there is a certain rule between the window opening scheme and aerodynamic force.Then,the influence of windowing scheme on fuel economy was further discussed.It was found that window o-pening scheme 2,5 and 16 have the smallest fuel growth rate.It is suitable for use when traveling in summer,which can not only ventilate the cars but also reduce energy consumption.

关 键 词：计算流体力学 开窗 气动力 燃油经济性 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]