TY  - JOUR
AU  - Yu, Junliang
AU  - Froning, Dieter
AU  - Reimer, Uwe
AU  - Lehnert, Werner
TI  - Apparent Contact Angles of Liquid Water Droplet Breaking through a Gas Diffusion Layer of Polymer Electrolyte Membrane Fuel Cell
JO  - International journal of hydrogen energy
VL  - 43
IS  - 12
SN  - 0360-3199
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2017-06861
SP  - 6318 - 6330
PY  - 2018
AB  - The lattice Boltzmann method is used to simulate the three-dimensional dynamic process of liquid water breaking through the gas diffusion layer (GDL) in the polymer electrolyte membrane fuel cell. An accurate method is introduced to analyze asymmetric droplet shape. Ten micro-structures of Toray GDL were built based on a stochastic geometry model. It was found that asymmetric droplets are produced on the GDL surfaces. Their local apparent contact angles vary with different view angles and geometries. They are different to the idealized contact angles by symmetric simplification. It was concluded that the apparent contact angles are influenced by GDL structures and view angles. This information can help to bridge the gap between mesoscale and cell-scale simulations in the field of fuel cell simulation.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000428823900031
DO  - DOI:10.1016/j.ijhydene.2018.01.168
UR  - https://juser.fz-juelich.de/record/838187
ER  -