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Joule heating problem - 2D and 3D simulations and compleatly different results - where is a mistake?
Posted 2015年2月19日 GMT-5 11:32 Electromagnetic Heating, Heat Transfer & Phase Change 2 Replies
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Hello,
I am quite new to comsol and I have some problems with joule heating simulation. So when I simulate my structure with 3D simulation it shows me huge temperature on heated material, but is is not showing me any heat around. In this case I tried to do 2D simulation and... with the same current I see nearly no heat in this material and I need some huge current to see any heat there. Can anyone explain me what am I doing wrong? Is it material or geometry problem? Or Physics?
Best regards,
Andrzej
I am quite new to comsol and I have some problems with joule heating simulation. So when I simulate my structure with 3D simulation it shows me huge temperature on heated material, but is is not showing me any heat around. In this case I tried to do 2D simulation and... with the same current I see nearly no heat in this material and I need some huge current to see any heat there. Can anyone explain me what am I doing wrong? Is it material or geometry problem? Or Physics?
Best regards,
Andrzej
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2 Replies Last Post 2015年2月20日 GMT-5 06:33
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Posted:
9 years ago
Hello Andrzej,
I have make some changes in your 3D problem. Why do you use form an assembly in geometry? It seems there is no reason for using it.
ec physic needs to be defined only on the electrical active part.
You need to use heat source in heat transfer physic computed from ec physic.
If you want to make a 2D model, it is better to work on a vertical plan do to your geometry.
Take a look on my model.
Julien
I have make some changes in your 3D problem. Why do you use form an assembly in geometry? It seems there is no reason for using it.
ec physic needs to be defined only on the electrical active part.
You need to use heat source in heat transfer physic computed from ec physic.
If you want to make a 2D model, it is better to work on a vertical plan do to your geometry.
Take a look on my model.
Julien
Attachments:
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Posted:
9 years ago
Hallo Julien,
thank you very much! This was exactly what I was looking for.
Best regards,
Andrzej
thank you very much! This was exactly what I was looking for.
Best regards,
Andrzej