汽车散热器结构对冷却液流动特性影响的数值分析  

Numerical analysis of the influence of radiator structure on the flow characteristics of coolant fluid

作　　者：江盼 朱玉豪 同晨杰 JIANG Pan;ZHU Yu-hao;TONG Chen-jie

机构地区：[1]上海爱斯达克汽车空调系统有限公司,上海201204

出　　处：《节能》2024年第6期38-41,共4页Energy Conservation

摘　　要：为了提高汽车散热器内冷却液的流动性能,通过CFD方法与试验验证相结合的方式,研究了某新能源汽车散热器进、出口管的位置及管径大小对散热器内冷却液压降和流动均匀性的影响。结果表明,数值仿真结果与试验结果的相对误差在7%以内,在入口流量分别为8 L/min和16 L/min时,进、出口管的位置越靠近散热器水平中心轴,进、出口管的管径越大,散热器的压降和流量分配均匀性系数越小,散热器内冷却液的流动性能越好。In order to enhance the flow performance of the coolant within the automotive radiator,a combination of Computational Fluid Dynamics(CFD)methods and experimental validation was used to study the impact of the positions and diameters of the inlet and outlet pipes of a new energy vehicle's radiator on the pressure drop and flow uniformity of the coolant.The results show that the relative error between the numerical simulation results and the experimental results was within 7%,when the inlet flow rates are 8 L/min and 16 L/min,respectively,the closer the positions of the inlet and outlet pipes are to the horizontal central axis of the radiator,and the larger the diameters of the pipes,the smaller the pressure drop and flow distribution uniformity coefficient of the radiator,indicating better flow performance of the coolant within the radiator.

关 键 词：汽车散热器 流动特性 数值模拟 CFD 

分 类 号：U469.72[机械工程—车辆工程]