基于CFD的电动汽车电池系统散热研究

Research on Heat Dissipation of Electric Vehicle Battery System Based on CFD

电池系统作为电动汽车的关键核心部件,须确保电动汽车的正常运行、续航能力和使用寿命。针对电池系统内产生的热量和热空气流速,通过相关理论计算分别得出热量和热空气流速作为边界条件,并将热量和热空气流速做流体化,运用CFD软件对电池系统内做温度流场和热空气流速做分析,得出结论:电池系统的抽风管口需要做优化设计与改进,即电池系统的抽风管口要尽可能地大,才能提高电池系统的使用寿命和正常运行。

In order to ensure the normal operation, endurance and service life of electric vehicles, as the key component of electric vehicles - battery system, it is necessary to conduct in-depth research on it. In this paper, the heat generated in the battery system and the velocity of hot air are taken as the research objects. The heat and the velocity of hot air are calculated as the boundary conditions, and the heat and the velocity of hot air are fluidized. The temperature flow field and the velocity of hot air in the battery system are analyzed by CFD software. The conclusion is that the outlet of the battery system needs to be optimized and designed. Improvement means that the outlet of the exhaust pipe of the battery system should be as large as possible so as to improve the service life and normal operation of the battery system.