Menu

Discussion Forum

New Discussion
查找

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 The information provided may be out of date.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.

Joule heating

Posted 2012年11月12日 GMT-5 07:18 Low-Frequency Electromagnetics Version 4.3 3 Replies

João Azevedo
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hello,
I am trying to study the joule heating by applying a current density to a material (simple block). I know how to do this by applying a ground and potential boundaries to the block (making a current pass through it) and it heats. What I want to do is, instead of applying a potential difference, I want to define the current that passes along the material. Is it possible? Thank you.
3 Replies Last Post 2012年11月14日 GMT-5 01:44
Eric Lämmel
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2012年11月12日 GMT-5 10:06
Apply a Boundary Current Source node at the boundary that has Electric Potential node in your model.
Apply a Boundary Current Source node at the boundary that has Electric Potential node in your model.
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 2012年11月12日 GMT-5 14:25
Hi

I would add: and disable the "electric potential" or "terminal" node, as you should only keep one of these three active at the sime time on the same boundary

--
Good luck
Ivar
Hi I would add: and disable the "electric potential" or "terminal" node, as you should only keep one of these three active at the sime time on the same boundary -- Good luck Ivar
Eric Lämmel
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2012年11月14日 GMT-5 01:44
Of course :)

But I think COMSOL overwrites the former with the latter BC by default, so it should work anyway...
Of course :) But I think COMSOL overwrites the former with the latter BC by default, so it should work anyway...

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