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 The information provided may be out of date.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.

Explicit time stepping requires linear time-independent constraints

Please login with a confirmed email address before reporting spam

hello;

I am using 1-D PDE-wave equation node for simulating a simple wave propagation model. I have a rod which is fixed at one end and at the other end I apply a sinusoid displacement only with one period. I use time explicit solver to solve it by explicit solver but I get this error” Explicit time stepping requires linear time-independent constraints.” Why?

How could I apply explicit solver to work properly in this case?
cheers

0 Replies Last Post Mar 29, 2011, 4:17 a.m. EDT
COMSOL Moderator

Hello M R

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.