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 The information provided may be out of date.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.

Comsol convergence problem!!!

Please login with a confirmed email address before reporting spam

Hi
I am trying a 1D flow module. I use: "coefficient Form PDE" but it gives me error "Nonlinear solver did not converge.
Time : 0.001
Last time step is not converged." during Time dependent solver.
In this model, my coeffients are very coupled.
Any idea why this is happening?
Thanks in advance

0 Replies Last Post 19 mars 2014, 06:00 UTC−4
COMSOL Moderator

Hello LAI Ba Tien

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.