Menu

Discussion Forum

New Discussion
Filter

Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

reactions, concentration and fluxes

Posted May 23, 2012, 9:21 a.m. EDT Battery Design, Chemical Reaction Engineering Version 4.2a 0 Replies

Mohsen Ariana
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi friends,

I have a problem with flux boundary condition. I am using the electrolyte-electrode boundary interface as the boundary condition. The flux of ions is proportional to the current passes at electrodes.

What is surprising is that when the concentration of leaving ion reaches zero, comsol just continiues the flux condition without stopping that. so we have negative concentrations. Does it mean we cannot model diffusion-controlled kinetics with COMSOL?

Does anyone know a way to avoid this problem or to limit the current at certain conditions?

King regards,

Mohsen
0 Replies Last Post May 23, 2012, 9:21 a.m. EDT
COMSOL Moderator

Hello Mohsen Ariana

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content