Menu

Discussion Forum

New Discussion
Filter

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 The information provided may be out of date.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.

Time dependence!!!

Posted Jun 12, 2012, 8:41 a.m. EDT Heat Transfer & Phase Change Version 3.5a 2 Replies

Evagelos Gkanas
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hello,

I am working on a model which consists of 2 tanks. I would like to ask if anyone knows how to force the first tank to operate between a time spacing and to make the second tank operate after the first one has finished (after the first time steping)..

Thank you very much!!
2 Replies Last Post Jun 13, 2012, 5:47 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Jun 12, 2012, 3:14 p.m. EDT
Hi

that depends on what you need to change between your 2 states, with matlab you can control it directly, in the GUI you can do int manually, solve a first time series, adapt your model and continue by using the last time step as initial conditions (I believe it was already possible in 3.5 without matlab, have a doubt now).

In certain cases you can tweak the BC formulas by a *(t<xx), or a *(t>yy) provided the "0" entry is not distrubing the model

--
Good luck
Ivar
Hi that depends on what you need to change between your 2 states, with matlab you can control it directly, in the GUI you can do int manually, solve a first time series, adapt your model and continue by using the last time step as initial conditions (I believe it was already possible in 3.5 without matlab, have a doubt now). In certain cases you can tweak the BC formulas by a *(tyy) provided the "0" entry is not distrubing the model -- Good luck Ivar
Evagelos Gkanas
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Jun 13, 2012, 5:47 a.m. EDT
Thank you very much..I will try the matlab first!!
Thank you very much..I will try the matlab first!!

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