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Heating Circuit
Posted Mar 11, 2013, 6:19 p.m. EDT Heat Transfer & Phase Change, Studies & Solvers, Structural Mechanics Version 4.3a 1 Reply
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Hello,
I am modeling a model very similar to heating circuit in the model library of Comsol 4.3a (physics are electric current shell, shell and thermal stress). The only differences are dimensions and materials. The dimensions are smaller and the materials are Si and Al instead. The strange things that happens is that Comsol does only one iteration and stops solving in the second equation at the segregated group 1 which is the thermal stress variables. Unfortunately the error is: The relative error is greater than the relative tolerance. The temperature group seems to be right even with one iteration but the strains don't look right.
I set up everything the same as the model from the model library but it does not work.
I tried different mesh sizes and types. I also tried different solvers.
What do you think is my error source?
Thank you so much for your help.
Best,
Hamideh
I am modeling a model very similar to heating circuit in the model library of Comsol 4.3a (physics are electric current shell, shell and thermal stress). The only differences are dimensions and materials. The dimensions are smaller and the materials are Si and Al instead. The strange things that happens is that Comsol does only one iteration and stops solving in the second equation at the segregated group 1 which is the thermal stress variables. Unfortunately the error is: The relative error is greater than the relative tolerance. The temperature group seems to be right even with one iteration but the strains don't look right.
I set up everything the same as the model from the model library but it does not work.
I tried different mesh sizes and types. I also tried different solvers.
What do you think is my error source?
Thank you so much for your help.
Best,
Hamideh
1 Reply Last Post Mar 12, 2013, 3:40 a.m. EDT
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Posted:
1 decade ago
Dear Hamideh,
your question is probably best solved by our support. Feel free to submit your file and description here:
www.ch.comsol.com/support/case/
As I have seen, you have already a COMSOL access account so you are all set.
Best regards,
Sven Friedel
your question is probably best solved by our support. Feel free to submit your file and description here:
www.ch.comsol.com/support/case/
As I have seen, you have already a COMSOL access account so you are all set.
Best regards,
Sven Friedel