基于CFD的某轻客冷却系统性能三维、一维耦合分析

The 1D and 3D coupling analysis of thermal management in under-hood

文章利用商用三维计算流体力学(CFD)软件和一维仿真软件相结合,对某型车机舱内外流场进行模拟分析,得到发动机舱内外流场特性,并对流场进行优化,提升通过散热器的风量。然后通过一维软件对整车冷却系统的性能性能匹配分析并与实验数据进行对比,结果表明,分析结果与实验结果吻合度较高。

The flow field in engine room is simulated by using3D CFD software.Then the coolant flow of1D coolingsystem is simulated by using1D simulated software.By optimizing the airflow in engine room,the air flow rate throughradiator is improved which lead a better performance of1D cooling system.The numerical simulation results are in goodagreement with experimental results.