基于CFD的某汽车外流场数值模拟与分析  

Numerical Simulation and Analysis of a Vehicle External Flow Field Based on CFD

作　　者：雷荣华[1] 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074

出　　处：《机械研究与应用》2015年第4期24-25,共2页Mechanical Research & Application

基　　金：重庆交通大学博士启动基金(编号:100982)

摘　　要：运用流体力学STAR-CCM+分析软件,对某自主品牌车型外流场进行了阻力系数的数值模拟,通过试验和模拟数据的对比,得到了比较合理的结果。并计算出了压力分布图和声功率图,根据模拟结果提出了一些有利于减小汽车阻力系数,提升汽车性能与乘员舒适性的建议,为汽车外形设计方提供了参考。A research on numerical simulation of external flow fiehl of a self-owned brand vehicle was conducted by the use of fluid mechanics analysis software STAR-CCM＋, and reasonable resuhs were got by the comparison of trial data and simulated data, the pressure distribution chart and acoustic power chart were calculated as well. Some suggestions were put forward in order to reduce the drug coefficient, improve the performance of the car and comfort of the driver. Results can provide some references in shape design.

关 键 词：STAR-CCM+ 数值模拟 外形优化 

分 类 号：TH122[机械工程—机械设计及理论]