Menu

Discussion Forum

New Discussion
Filtra

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.

Use temperature at previous time?

Posted 2 ago 2017, 16:09 GMT-4 Heat Transfer & Phase Change Version 5.3 0 Replies

Amos Meeks
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

I am trying to model heat flow in a structure from a heat source, but I would like the heat source power at any point in time to be dependent on the temperature at a separate point at a previous time (such as three seconds in the past).

For example, for my heat source I might want something like P0 = 1/(1 + exp( (intop1(T(t-3)) - 300.15))

This, of course, gives me the error:
Unknown function or operator.
- Name: T

Is this possible to do with COMSOL?
0 Replies Last Post 2 ago 2017, 16:09 GMT-4
COMSOL Moderator

Hello Amos Meeks

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.

Suggested Content