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 The information provided may be out of date.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.

what is the best method (iterative or direct) for solving 3D problems?

Please login with a confirmed email address before reporting spam

hi
i'm new in comsol
i try to do a very simple example conjugate heat tranfer
i simulate a simple flow in a channel characterized between 2 parallel planes in 3D geomtry, i have do a finer mesh
what is the best parameter for solving my example with the method iterative multigrid in Presmoother, Postmoother and Coarse Solver (SOR, SCGS, Jacobi, Vanka, SOR line, SOR Gauge, SOR Vector, direct) and what is the differnce between this parametrs
i search an explication for the iterative method multigrid
Thank you.


0 Replies Last Post Apr 1, 2014, 9:42 a.m. EDT
COMSOL Moderator

Hello Hicham Kaidouchi

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.