摘要
根据国外的研究,汽车气动阻力系数C_D值的修正方法主要有阻塞效应、水平浮力效应、尾流压力梯度和喷口压力梯度影响等修正。本文中在国外研究结果的基础上,提出了新的汽车气动阻力系数CD值的综合修正方法,它需要在不同风洞中进行风洞试验验证和CFD虚拟风洞试验验证,并对验证结果进行统计分析。
According to foreign researches,the corrections on aerodynamic drag coefficient have several methods based on blockage and horizontal buoyancy effects and wake distortion and nozzle pressure gradients etc.respectively. In this paper,on these bases,a new overall correction scheme on CDvalue is proposed,which needs verifications in both physical and CFD virtual wind-tunnel tests for different kinds of wind tunnels with their results statistically analyzed.
出处
《汽车工程》
EI
CSCD
北大核心
2017年第4期412-417,共6页
Automotive Engineering
基金
重庆市重点产业共性关键技术创新专项(cstc2015zdcy-ztzx60011)资助
关键词
汽车
气动阻力系数
风洞试验
测量值修正
vehicle
aerodynamic drag coefficient
wind tunnel test
measured value corrections
