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.

A general question about convergence issue

Please login with a confirmed email address before reporting spam

Hi all,

I'm doing research with Comsol 5.3 fluid flow interface. I used couple geometry parameters such as radius of a cylinder, the angle of a domain relative to the others, etc. When I try to change those parameters and build the geometry, it usually mess up the domains I set up earlier in "delete geometry" and "partition domain". This is one problem. Another one is: when I try to calculate different results from different parameters, Solver doesn't converge. And I rebuild everything in a new file exactly the same as previous ones except this time I start with the new parameter I want. Then it works. I don't know why. Is this happening to you guys?

Sincerely,

Xu Xu

0 Replies Last Post 2017年8月22日 GMT-4 19:37
COMSOL Moderator

Hello Xu Xu

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.