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Fuel cells stack simulation-Solver

Posted Mar 15, 2011, 11:34 a.m. EDT Low-Frequency Electromagnetics, Battery Design Version 3.5a 0 Replies

Margarita Arcila
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I am modeling a monopolar strip 3 fuel cells stack. It has the same membrane for all cells and the equations used in the simulation are as follows:

Convection and Diffusion (Oxygen_Cathode)
Convection and Diffusion (Ethanol_Anode)
Conductive Media DC (Anode)
Conductive Media DC (Cathode)
Conductive Media DC (Membrane)
Darcy's Law (DarcyLiquid)
Darcy's Law (DarcyGas)

I have tried to solve the problem by using any solver possible, I guess, I haven't set up the right conditions or parameters for the solver and I really don't know which of them would be the right one.

I have already read through the tutorial and it really didn't help to solve my situation.

The message I got (red letters) is:

Error:
Failed to find a solution:
Divergence of the linear iterations.
Returned solution has not converged.

I would really appreciate any advice!! Thanks!!
0 Replies Last Post Mar 15, 2011, 11:34 a.m. EDT
COMSOL Moderator

Hello Margarita Arcila

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