Menu

Discussion Forum

New Discussion
Filtrer

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.

Selection of solvers in 3D problem

Posted 16 juil. 2010, 08:39 UTC−4 0 Replies

Pranay Ghosh
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi,

I am using two modules- free and porous medium (for fluid flow) and species transport through porous membrane (for mass transport) in a 3 D geometry. I solve first the fluid flow in stationary mode and then use the solution of the velocity profile to calculate mass transport in transient mode. I am using Direct solvers for this analysis.
The velocity profile by the stationary analysis is good however, I obtain a lot of artifacts in the concentration profile even though i use extremly fine mesh generation and also it takes lot of memory and time to solve the process.

Should i try using iterative solvers?. can you please guide me on criteria to select these solvers , preconditioners,smoothers etc ??

Thanks,

Pranay
0 Replies Last Post 16 juil. 2010, 08:39 UTC−4
COMSOL Moderator

Hello Pranay Ghosh

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