SOS! DMFC modeling with CFD
 

SOS! Hi guys, I'm modeling DMFC anode with fluent, the channel geometry is serpentine and the reaction is modeled by UDFs and just liquid phase is considered. But after the simulations, I found the methanol mass fraction distribution in the area under the rib is higher than that under the channel in the catalyst layer. But from the literature, the result should be opposite. Can anyone tell me how to solve the problems? Thanks!