引 言
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-948ea277a2a0d56ce234e21dad9f32c2.jpeg)
Fig.1 Second-loop indirect liquid cooling battery thermal management system
1 模型及参数
1.1 几何参数
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-05358e7e5eb5835ed71da61233006240.jpeg)
Fig.2 Overall structure and shape of the chiller
1.2 仿真模型
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-efd4b9026f0eeebf2f5919049a74fac7.jpeg)
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-d3c5056b80b302ca885d54a9505dcbd3.jpeg)
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-b0331473190039eb161b20a8ae922bc8.jpeg)
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-71633cd1d6aa85be71ab87fe29a815cc.jpeg)
1.3 网格划分及无关性验证
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-f2129334390e086aedd2f10bc2364cd6.jpeg)
Fig.3 Cross section diagramof mesh
Table 1 Mesh independence
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-484b74dd3710838af833c4d4942057ae.jpeg)
1.4 数值方法
1.5 物性参数、边界条件及计算工况
1.6 模型验证
Table 2 Properties of coolant(50%ethylene glycol-50%water)
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-38b9e66614b3147760cff2f7c55e050a.jpeg)
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-f8c1fda0a95d2ef165a332db80405e80.jpeg)
Fig.4 Comparison of heat exchange capacity between simulation and experiment
2 结果与讨论
2.1 数据处理方法
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-52c95fa96055a0f90f94f9133b242814.jpeg)
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-3fcc678ed4c545f2042a0dba5e8f43eb.jpeg)
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-d954ee0d6f009d47042aa6464875c7c3.jpeg)
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-ba61d4286a4794fede6b83c66e7aee6c.jpeg)
2.2 流场分析
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-a810baed6d80ca49dd79763b4c2c9c98.jpeg)
Fig.5 Velocity contour on cross section at different height positions
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-f76f74f40a8bdd405f49bc6a3bb1915b.jpeg)
Fig.6 Streamline on cross section at a symmetric position
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-69d1f27a76e145c3b0d8f0a153cde79b.jpeg)
Fig.7 Temperature contour on cross section at a symmetric position
2.3 流动参数对传热及流动性能的影响
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-ac049391d440249aeee13a59beab8ec3.jpeg)
Fig.8 Temperature and velocity contour near contact area
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-9cc040488c1c35a7391eceffb93c9cb8.jpeg)
Fig.9 Average HTCand pressure drop varies with mass flow rate
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-c4e7e623b7604c8aceaf54e66d70e890.jpeg)
![电动汽车电池冷却器冷却液侧传热与流动性能仿真](https://www.yueuk.com/wp-content/uploads/2021/12/frc-e70e94f0d090c52724d2226115ccb3ed.jpeg)
Fig.10 Average HTCand pressure drop varied with inlet temperature
3 结 论
作者:山訸1,马秋鸣1,潘权稳1,曹伟亮2,王强2,王如竹1
1上海交通大学机械与动力工程学院
2上海欧菲滤清器有限公司
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