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 The information provided may be out of date.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.

Problem using "changing" and "from solution" initial value

Please login with a confirmed email address before reporting spam

Hi,

here is the problem I want to solve using COMSOL. I have a 1D segment divided into 3 parts and I try to modelize the concentration profile of two components as a function of time. At the beginning of my experiement, I don't want any flux throught the segment on the right. Then, I calculate the profile after a certain time. Then I want to use this concentration profile as initial condition for two of the three segments and I want to allow now the flux throught the third segment. Moreover, I would like to impose as initial concentration for the third segment a constant value that is different from the one in the first calculation. But for now, I did not find how to do it
Does someone has any idea to solve this problem ?

Thanks a lot

0 Replies Last Post 17 nov 2011, 02:04 GMT-5
COMSOL Moderator

Hello Savart Thibaut

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.