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Thomson effect in COMSOL???
Posted 16 nov. 2010, 04:23 UTC−5 2 Replies
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Hi COMSOL experts and users,
I am modeling the Joule heating of a simple bar of polysilicon: input is a voltage along the bar, and output is the temperature profile along the bar.
What I have got is that the highest temperature is at the center of the bar. It seems make sense. However, as I know that, if we take into account the Thomson effect, there would be a shift to the temperature, i.e. the highest temperature may NOT be at the center.
***So, I am wondering IF COMSOL takes Thomson effect into account.
Would you please help me out?
***And, if COMSOL does not takes Thomson effect into account, what and how should I do to add this effect to my simulation?
Many thanks in advance!
Bao Q. Ta
PhD Fellow
Vestfold University College
Norway
Phone:+47 33037971 begin_of_the_skype_highlighting +47 33037971 end_of_the_skype_highlighting begin_of_the_skype_highlighting +47 33037971 end_of_the_skype_highlighting
I am modeling the Joule heating of a simple bar of polysilicon: input is a voltage along the bar, and output is the temperature profile along the bar.
What I have got is that the highest temperature is at the center of the bar. It seems make sense. However, as I know that, if we take into account the Thomson effect, there would be a shift to the temperature, i.e. the highest temperature may NOT be at the center.
***So, I am wondering IF COMSOL takes Thomson effect into account.
Would you please help me out?
***And, if COMSOL does not takes Thomson effect into account, what and how should I do to add this effect to my simulation?
Many thanks in advance!
Bao Q. Ta
PhD Fellow
Vestfold University College
Norway
Phone:+47 33037971 begin_of_the_skype_highlighting +47 33037971 end_of_the_skype_highlighting begin_of_the_skype_highlighting +47 33037971 end_of_the_skype_highlighting
2 Replies Last Post 16 nov. 2010, 09:00 UTC−5
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Posted:
1 decade ago
COMSOL will not consider any thermoelectric effect on it's own unless you "tought" COMSOL how to do that.
I think it should be possible to model that as a volume heat source, which depends on the temperature(gradient) and the current.
Best regards
I think it should be possible to model that as a volume heat source, which depends on the temperature(gradient) and the current.
Best regards
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Posted:
1 decade ago
Thank you, K. Herbrig!
I will try doing that way.
Bao
I will try doing that way.
Bao