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 The information provided may be out of date.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.
Meshing problems for 3D periodic problems when using GMRES
Posted 19 sept. 2012, 05:45 UTC−4 RF & Microwave Engineering, Geometry, Mesh, Studies & Solvers Version 3.5a, Version 4.3 0 Replies
Please login with a confirmed email address before reporting spam
I need help and I hope somebody with experience of using iterative method for large 3D problem would be willing to give me help.
I wish to calculate large 3D periodic problems in the RF module but i can not seem to get the calculation to converge properly with GMRES although i hear its the solver i should try.
As i read through the help, i see that there should be special conditions i should take care of when meshing since the solver include geometric multigrid algorithm somewhere. Can somebody tell me how to prepare a mesh suitable for geometric multigrid in large 3D problems easily?
I attach my mock comsol 4.3 mph file, is such meshing adequate for the geometric multigrid algorithm?
I may have completely misdiagnosed the bug in my calculation, i hope somebody would be willing to tell me that if its so.
Many thanks in advance
Attachments:
Hello Aimi Abass
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.