Menu

Discussion Forum

New Discussion
Filtern

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.

Solution Divergence when making Mesh smaller or finer

Posted 29.09.2017, 07:59 GMT-4 Electromagnetics, Computational Fluid Dynamics (CFD), Studies & Solvers Version 5.2 1 Reply

Enrico Freda
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

I have Transient model which consists of Electrostatics , Transport of Diluted Species and Creeping flow modules, when I run the model with big mesh(coase one) COMSOL solves it eazily without any error but when I colve the same model and geometry with finer mesh it becomes divergence. How can I solve this problem?

1 Reply Last Post 29.09.2017, 08:55 GMT-4
Jeff Hiller COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 7 years ago 29.09.2017, 08:55 GMT-4
Updated: 7 years ago 29.09.2017, 09:01 GMT-4

Hi Enrico,

A likely cause is that your initial conditions are inconsistent with your boundary conditions. It can be easier for the software to recover from that with a coarse mesh than with a finer one. If that is not the problem, please post your mph file.

Best,

Jeff

-------------------
Jeff Hiller
Hi Enrico, A likely cause is that your initial conditions are inconsistent with your boundary conditions. It can be easier for the software to recover from that with a coarse mesh than with a finer one. If that is not the problem, please post your mph file. Best, Jeff

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