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 The information provided may be out of date.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.

How to set a temperatur dependent Heat source

Posted Feb 3, 2016, 3:54 p.m. EST Heat Transfer & Phase Change Version 4.4 0 Replies

Zhuo Xia
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Dear Comsol experts,

i am modeling the Temperatur Distribution of a exotherm intermetallic reaction(SHS reaction between Al-Ni).
The reactions start from the Temperatur 900K and lasts just for 1ms.
I have tried using function in Heat source term but it doesnt work.
Q [W/m^3]*an1(T)
an1(T)=0*(T<900)+1*(T>=900)*(T<1600)+0*(T>=1600)

There is an Ignition Energie at one place so that the Temperatur somewhere can be over 900K.
However the results of Simulation turns out just like there is no Q at all, just the activation works.


I am grateful if someone know how to make the Temperatur dependent Heat source of Heat Flux

Thanks!
Xia

0 Replies Last Post Feb 3, 2016, 3:54 p.m. EST
COMSOL Moderator

Hello Zhuo Xia

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