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.

Reciprocal of step size increase suddenly

Please login with a confirmed email address before reporting spam

I am simulating a droplet flowing in a microchannel using ALE moving mesh module. Time dependent solver with fully coupled method is applied. It confuses me that the reciprocal of step size decreases at the early stage but increases suddently at one time step and results in 'not converged of nonlinear solver'. How to solve this problem?



0 Replies Last Post 20 janv. 2021, 01:20 UTC−5
COMSOL Moderator

Hello 韬 刘

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.