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 The information provided may be out of date.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.

Temperature distribution within a cable's cross-section

Please login with a confirmed email address before reporting spam

I want to simulate the temperature distribution within a cable's cross-section.
Three phase currents with 120 phase shift are applied to this cable.
The physics i use is heat transfer in solid, I add heat source to each phase of the conductor like:
(Jmax*sin(omega*t+delta1))^2*resistivity(1+alpha(T-Tref))
Because of the resistivity of the copper conductor is temperature dependent.
Based the experiment, the cable conductor temperature may reach 65 degree C after 17000s,but the simulation result shows not.
Really wander why it is not right,thanks!!!
I attach my model below


0 Replies Last Post 17 ago 2013, 17:38 GMT-4
COMSOL Moderator

Hello Chenlu Lin

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.