摘要
运用TAITherm软件和Star ccm+软件完成了电池包的热模型和流体模型的耦合仿真。运用TAITherm中已建立的热模型,定义热相关的边界条件并进行电池包内部热分析;运用Star ccm+已建立的流体模型,选择乙二醇水溶液为冷却液,在初始温度为25℃、进口质量流量为0.18 kg‧s–1的边界条件下进行液冷板内部流体的对流换热分析;热-流耦合仿真后根据仿真结果对液冷板的U型处结构进行了优化。研究表明,液冷板原结构的U型处冷却液流动紊乱,造成较大压降;在液冷板U型处增加一定数量的导流柱进行优化,结果表明优化后的液冷板内导流结构可有效改善冷却液流动方向,达到了降低压降和增强换热的效果。
In this paper,a simulation of the battery package combined the thermal model and the fluid model is completed by using software TAITherma and Star ccm+.The thermal model established in TAITherm is used to define the thermal related boundary conditions and carry out the internal thermal analysis of the battery pack.The fluid model is established in the Star ccm+,and the glycol solution is selected as the cooling medium.The fluid convection and heat transfer in the liquid cooling plate are analyzed when the initial temperature is 25℃and the inlet mass flow rate is 0.18 kg‧s–1.According to the simulation results,the u-shaped structure of the liquid cooling plate is optimized.The results show that the cooling medium flow is disorganized at the u-shaped part of the original structure,resulting in a large pressure drop.However,after adding some guide columns to the u-shaped liquid cooling plate for optimization,the cooling medium flow direction is effectively improved,and in consequence,the pressure drop is reduced and the heat transfer is enhanced.
出处
《大众科技》
2020年第6期54-56,73,共4页
Popular Science & Technology
关键词
动力电池
液冷板
压降
导流柱
power battery
cooling plate
pressure drop
diversion column
