NUMERICAL STUDY ON TWO-PHASE FLOW CHARACTERISTICS IN SERPENTINE CHANNELS OF PEMFC

Qin Lei; Guo Xueyan

doi:10.19912/j.0254-0096.tynxb.2024-0037

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NUMERICAL STUDY ON TWO-PHASE FLOW CHARACTERISTICS IN SERPENTINE CHANNELS OF PEMFC

更新时间：2025-12-07

- NUMERICAL STUDY ON TWO-PHASE FLOW CHARACTERISTICS IN SERPENTINE CHANNELS OF PEMFC
- Vol. 46, Issue 5, Pages: 21-28(2025)
- 作者机构：
  
  上海理工大学能源与动力工程学院,上海,200093
- 作者简介：
- 基金信息：
- DOI：10.19912/j.0254-0096.tynxb.2024-0037
  CLC： K911.4
- Published Online：04 June 2025，
  
  Published：2025
- 稿件说明：
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秦磊, 郭雪岩. PEMFC阴极蛇形通道两相流动特性的数值研究[J]. 太阳能学报, 2025, 46(5): 21-28.

Qin Lei, Guo Xueyan. NUMERICAL STUDY ON TWO-PHASE FLOW CHARACTERISTICS IN SERPENTINE CHANNELS OF PEMFC[J]. 2025, 46(5): 21-28.
秦磊, 郭雪岩. PEMFC阴极蛇形通道两相流动特性的数值研究[J]. 太阳能学报, 2025, 46(5): 21-28. DOI： 10.19912/j.0254-0096.tynxb.2024-0037.

Qin Lei, Guo Xueyan. NUMERICAL STUDY ON TWO-PHASE FLOW CHARACTERISTICS IN SERPENTINE CHANNELS OF PEMFC[J]. 2025, 46(5): 21-28. DOI： 10.19912/j.0254-0096.tynxb.2024-0037.

摘要

为研究质子交换膜燃料电池（PEMFC）在不同工况条件下的水管理特性

基于VOF方法对PEMFC阴极蛇形通道中的两相流动过程进行数值研究

采用在通道底面挖取入水孔的方式

通过设定不同相态比例的水为入口条件

旨在分析阴极通道中不同相态比例混合物的两相流动状态和输运过程对燃料电池水管理的影响。结果表明：通过分析通道入口处的水团分离特性

发现不同相态比例对水团在入口处的分离时间、分离体积有显著的影响

并发现入口处水团的两种分离方式以及壁面偏好差异

尤其是U型管处堆积差异的现象更加明显;通道中观测到的特征流型与两种分离方式有关

并且影响着通道的排水性能。

Abstract

This study investigates the water management characteristics of proton exchange membrane fuel cells （PEMFC） under varying operational conditions. A numerical analysis of two-phase flow within the cathode’s serpentine channels was conducted using the Volume of Fluid （VOF） method. Water inlet holes were created at the bottom of the channel and different phase ratios were set as inlet conditions. The objective was to examine the impact of two-phase flow and transport processes of mixtures with varying phase ratios on water management.The results reveal that different phase ratios significantly influence the separation time and volume of water at the channel inlet. Two distinct separation pattern and wall preference discrepancies were identified

with significant accumulation differences observed at U-shaped tube sections. The characteristic flow patterns within the channel correlate with the separation patterns and influence the channel's drainage capabilities.

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