GIEC OpenIR  > 中国科学院广州能源研究所
Alternative TitleDynamic Behaviors of Water Droplets on H2/Air PEMFC Gas Diffusion Layer Surface: VOF Simulations
陈旺1,2,3; 蒋方明1,2,3
Source Publication新能源进展
Other AbstractHow to enhance liquid water transport or removal in gas diffusion layers and gas flow channels is an important problem needs to be carefully considered in the research and design of advanced H2/Air PEMFC (proton exchange membrane fuel cell). In the present work, the FLUENT volume of fluid (VOF) module is employed to simulate and study the dynamic behavior of liquid water droplet formation, detachment and transportation on or from the surface of gas diffusion layer. Water droplets show complex dynamic behavior, which is a result of the combined effect of shearing forces, viscous forces and surface tension. Water droplet detaches from the surface of gas diffusion layer more easily if the contact angle is larger or the gas flow velocity is higher. The effect of contact angle on water droplet dynamic behavior is greater than the gas velocity. A downstream notch on the surface of gas diffusion layer can facilitate the detachment of water droplet. In addition, water droplet dynamic behavior on the anode side is studied as well. It is found that once water droplet forms on the surface of gas diffusion layer, it more possibly sticks on the surface and is hard to be blown away by the H2 flow.
Keyword质子交换膜燃料电池 微通道 气液两相流 VOF proton exchange membrane fuel cell micro channel gas-liquid two-phase flow VOF
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Document Type期刊论文
Corresponding Author蒋方明
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
陈旺,蒋方明. H2/空气质子交换膜燃料电池气体扩散层表面水滴行为的VOF模拟研究[J]. 新能源进展,2017,5(6):435-442.
APA 陈旺,&蒋方明.(2017).H2/空气质子交换膜燃料电池气体扩散层表面水滴行为的VOF模拟研究.新能源进展,5(6),435-442.
MLA 陈旺,et al."H2/空气质子交换膜燃料电池气体扩散层表面水滴行为的VOF模拟研究".新能源进展 5.6(2017):435-442.
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