乘用车外流场及发动机舱内流动分析

The Aerodynamic and Underhood Simulation of the Passenger Vehicle

应用STAR-CCM+软件,对某款乘用车进行整体空气动力学仿真分析,并对机舱内冷却气体流动情况进行数值模拟。通过仿真分析发现了影响阻力系数的关键零部件。在设计布置舱内各个零部件阶段,通过对机舱内冷却气体的计算模拟判断,得出是否满足舱内冷却设计要求,为机舱内布置进一步优化提供依据。

This paper introduce the Aerodynamic Simulation Analysis and underhood of one car using STAR-CCM＋. We found the key parts that effect drag coefficient. Across the result of simulation, the cooling system whether or not satisfied the desire of design should be estimated, and providing gist for the further optimization of underhood disposal, in the design and decoration of each component inside the engine compartment.