Dear researchers :

I'm looking for some help.

Does someone around knows well how to work with the "Fuel Cells & Electrolyzer Module" in Comsol 6.1 ?

I'm trying to build a simulation of an ejample of a PEM water Electrolyzer.

An image of the geometry is attached.

I have managed to build the geometry, and assign the materials to the domains. But I'm at the stage of including the required physics for the simulation.

When I run the simulation

1) I get meaningless

2) Because I get the following warnings, which are related with an incompletion (or bad definition) on the physics of my model:

"No potential condition founf. Problem may have infinitely many solutions".

and

"There are one or multiple domains selected on the interface level that are not selected by any domain phase node".

Can anyone help me to correct this ?

I will appraciate it really

Thanks, and regards!