某车型车身外流场的数值仿真研究  

Numerical Simulation of Outer Flow Field for Car Body

作　　者：杨松[1] 李亚敏[1] Yang Song;Li Yamin(Mechanical and Engineering College, Xinxiang University, Hebei Xinxiang 453003)

机构地区：[1]新乡学院机电工程学院,河北新乡453003

出　　处：《汽车实用技术》2017年第13期144-146,共3页Automobile Applied Technology

摘　　要：建立某车型车身外流场仿真三维几何模型,将SIMPLE算法与Realizable k-ε湍流模型相结合,完成了车身外流场数值计算,并对车身及典型截面的速度场、压力场及气动噪声升功率场分布进行了详细分析。数值仿真结果对汽车外形的优化设计具有重要工程指导意义。The full flow field model of the car body has been built,and the SIMPLE algorithm,in conjunction with theRealizable k-εturbulent model,has been used to solve the three-dimensional equations.Based on the calculation of the outerflow for the car body,the velocity field,pressure field and the acoustic power field have been farther analyzed.The numericalsimulation results can provide basis for optimizing the car body design,and have important value of engineering applicationsin the increase of the overall performance in operation.

关 键 词：汽车空气动力学 车身外流场 数值模拟 

分 类 号：TH432.1[机械工程—机械制造及自动化]