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 The information provided may be out of date.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.

Stiff Spring method_problem

Posted Nov 18, 2014, 4:29 a.m. EST Chemical Reaction Engineering Version 4.3a 1 Reply

Dang Cheng
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi, everyone!
i am modlling mass transport in two adjacent domains
i used stiff spring method to handle the interface, but the results are weird.
i attached the model equations and mph file?
Could some one help me with this problem?
1 Reply Last Post Nov 18, 2014, 5:34 a.m. EST
Niklas Rom COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Nov 18, 2014, 5:34 a.m. EST
In version 5.0 we released an alternative method with constraints, that is much more robust and numerically stable than the stiff-spring method. Check it out:

www.comsol.com/model/separation-through-dialysis-258

Niklas

In version 5.0 we released an alternative method with constraints, that is much more robust and numerically stable than the stiff-spring method. Check it out: http://www.comsol.com/model/separation-through-dialysis-258 Niklas

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