Menu

Discussion Forum

New Discussion
Filtra

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 The information provided may be out of date.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.

change in thermal conductivity with respect to temperature

Posted 28 lug 2014, 18:49 GMT-4 Heat Transfer & Phase Change, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3a, Version 4.3b 4 Replies

Karan Bikkannavar
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hello,

Is it possible to simulate a case wherein, the thermal conductivity of the material changes with respect to the temperarture ?

Please let me know.
4 Replies Last Post 29 lug 2014, 16:51 GMT-4
Pieter Westerik
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 29 lug 2014, 02:46 GMT-4
Yes, make the thermal conductivity user defined and put for the value of the thermal conductivity some formula in which you use 'T' (probably) for the temperature. Or you can put your formula in the material property of the relevant material.
Yes, make the thermal conductivity user defined and put for the value of the thermal conductivity some formula in which you use 'T' (probably) for the temperature. Or you can put your formula in the material property of the relevant material.
Karan Bikkannavar
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 29 lug 2014, 15:26 GMT-4
thank you for the reply.
The actual problem is that if its possible to simulate thermal conductivity change with temperature change.!

I am running a Joule heating simulation to see temperature distribution on a boundary(Aluminum material) using 'step' input/function for a specific time period. I obtain the temperature results for every time steps.
Next, I want to run a case wherein Thermal conductivity of Aluminum changes with temperature change at every time step.

Can it be done??

thank you for the reply. The actual problem is that if its possible to simulate thermal conductivity change with temperature change.! I am running a Joule heating simulation to see temperature distribution on a boundary(Aluminum material) using 'step' input/function for a specific time period. I obtain the temperature results for every time steps. Next, I want to run a case wherein Thermal conductivity of Aluminum changes with temperature change at every time step. Can it be done??
Josh Thomas Certified Consultant
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 29 lug 2014, 15:52 GMT-4
Yes. You can specify temperature dependent material properties. In your case, simply make your thermal conductivity a function of the temperature variable, T.

--
Best regards,
Josh Thomas
AltaSim Technologies
Yes. You can specify temperature dependent material properties. In your case, simply make your thermal conductivity a function of the temperature variable, T. -- Best regards, Josh Thomas AltaSim Technologies
Karan Bikkannavar
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 29 lug 2014, 16:51 GMT-4
Thank you for the quick reply.
Thank you for the quick reply.

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