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 The information provided may be out of date.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.

mesh element reduction

Please login with a confirmed email address before reporting spam

The biggest issue I keep running into are long computation times. I have found that this is mostly due to the large number of mesh elements in my device. My question is what are some ways to reduce the number of mesh elements in order to speed up the computation time.

1 Reply Last Post Aug 28, 2012, 9:50 p.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Aug 28, 2012, 9:50 p.m. EDT
Hi

your mesh should ebe fine enough to correctly resolve all gradients of all dependent variables, and to represent truely the geoemtry you have. f your cad has many holes and small details the mesh tend to be overcrowded from these "small" items but then is often too dense.

In COMSOL you have control on all mesh parameters, up to you to make the mesh coarser, but still to check that the results are coherehnt.

--
Good luck
Ivar
Hi your mesh should ebe fine enough to correctly resolve all gradients of all dependent variables, and to represent truely the geoemtry you have. f your cad has many holes and small details the mesh tend to be overcrowded from these "small" items but then is often too dense. In COMSOL you have control on all mesh parameters, up to you to make the mesh coarser, but still to check that the results are coherehnt. -- Good luck Ivar

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.