电源技术2026，Vol.50Issue(1)：110-120,11.DOI:10.3969/j.issn.1002-087X.2026.01.014
迷宫形流道设计对直冷热管理系统散热性能的仿真研究
Numerical investigation of labyrinthine flow channel design effects on thermal performance in direct cooling thermal management systems
摘要
Abstract
This study proposes a symmetric labyrinth flow channel aimed to address uneven cooling and high flow resistance in direct cooling battery thermal management systems.A CFD-based two-phase fluid-solid-thermal coupling model was developed to analyze how channel width,fillet radius,and refrigerant mass flow affect cooling performance and energy consumption.The results indicate that,in comparison with conventional serpentine channels,the proposed labyrinth design reduces the maximum cell temperature by 1.99℃ and the peak temperature difference between cells by 0.97℃under C-rates ranging from 1 C to 4 C,while simultaneously decreasing the pressure drop by 57％-78％.Optimal channel width balances heat dissipation and flow resistance.Increasing fillet ra-dius reduces local resistance but excessive values impair boiling heat transfer.A critical mass flow saturation point exists beyond which thermal improvement diminishes while energy consumption surges.The research reveals the coupling mechanism of structural and operational parameters on thermal-energy performance,and establishes design guidelines for cold plates.These findings provide theoretical foundations and practical references for developing high-efficiency direct cooling systems.关键词
迷宫形流道/直冷热管理/锂离子电池/CFD仿真Key words
labyrinthine flow channel/direct cooling thermal management system/lithium ion bat-tery/computational fluid dynamics simulation分类
信息技术与安全科学引用本文复制引用
王泽宇,李晓杰,李刚,张文涛,李乐..迷宫形流道设计对直冷热管理系统散热性能的仿真研究[J].电源技术,2026,50(1):110-120,11.基金项目
高端装备可靠性技术山西省重点实验室开放研究基金项目(GDZBKKX—10) （GDZBKKX—10）
