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 The information provided may be out of date.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.
System matrix is zero
Posted 30.06.2016, 10:48 GMT-4 Heat Transfer & Phase Change, Studies & Solvers Version 4.4 0 Replies
Please login with a confirmed email address before reporting spam
I have some problem with my model on COMSOL 4.4. I use heat transfer in solids and non-isothermal pipe flow. And I have this message when I compute after about 20 minutes:
Failed to find consistent initial values.
Segregated group 4
System matrix is zero.
Last time step is not converged.
I do some simulation and I have this message all the time. Segregated group 4 refers to the pressure or to the tangential velocity (depends of the case).
If somebody can help me it will be great,
Thank you,
Marine
Hello Marine Gouret
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.