Menu

Discussion Forum

New Discussion
Filter

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.

Comparison of 4.0 amd 4.1

Posted Jan 10, 2011, 11:37 a.m. EST 2 Replies

Pekir Joseph
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi:

I have a 3D geometry and I am calculating the lumped capacitance. Previously in
comsol version 4.0 I meshed with "tri" and in comsol version 4.1 I understand I must mesh
with "teth" for 3D models. Bur when I solve I get different values of capacitance in both versions.
What may be the cause of that?

Best Regards,
Pekir
2 Replies Last Post Jan 24, 2011, 1:59 p.m. EST
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Jan 11, 2011, 10:52 a.m. EST
Hi

normally ther has been no change in the 3D meshing types, this is by default "teths" for both 4.0 and 4.1 in 3D. And normally I do neither not see why you should get a different capacitance for the same model in the two versions. So either there is a typo somewhere in a formula, or a translation has missed a point, in my opinion. In any case how close are you to your estimated analytical value ? An what are the differences, could it come from a different meshing density ?

--
Good luck
Ivar
Hi normally ther has been no change in the 3D meshing types, this is by default "teths" for both 4.0 and 4.1 in 3D. And normally I do neither not see why you should get a different capacitance for the same model in the two versions. So either there is a typo somewhere in a formula, or a translation has missed a point, in my opinion. In any case how close are you to your estimated analytical value ? An what are the differences, could it come from a different meshing density ? -- Good luck Ivar
Pekir Joseph
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Jan 24, 2011, 1:59 p.m. EST
Hi:


I apologize. Its a issue between 3.5 and 4.1. So the same questions as Ive asked before
but now its related to comsol 3.5a and 4.1.


Best Regards,
Pekir
Hi: I apologize. Its a issue between 3.5 and 4.1. So the same questions as Ive asked before but now its related to comsol 3.5a and 4.1. Best Regards, Pekir

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