How to define BC for internal layers

Thread starter kamran46
Start date Feb 19, 2009
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AI Thread Summary

To define the temperature at the common surface of two cylinders in COMSOL, users need to access the Physics settings and check the "mark the interior boundaries" option. This action activates the middle surface for boundary condition (BC) definitions. After enabling this feature, users can successfully set the desired temperature BC on the common surface. This approach allows for accurate modeling of thermal interactions between the cylinders. Properly configuring the boundary conditions is essential for effective simulation results.

Feb 19, 2009

kamran46

Hi all,

I am new to this forum and COMSOL. I want to define the temperature at the common surface of two cylinders in contact. When I model the cylinders, the common surface (middle surface) is not active for defining any BC. Please tell me how can I do this in COMSOL. Thanks.

Last edited: Feb 19, 2009

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Feb 20, 2009

GT1

go to Physics->Boundary setting->mark the interior boundaries checkbox.
and then you can set BC.

Feb 20, 2009

kamran46

Thank you very much.

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