I am using COMSOL to conduct heat transfer studies for a solar module. I have drawn the separate geometries in AutoCAD and imported them into COMSOL. However, after simulation, the edges of the geometries have a constant temperature, almost as if they are not in contact with the environment. If a make a very simple version of the geometry using COMSOl itself, then the new geometry seems to properly dissipate heat to the environment. Has anyone experienced similar issues with imported geometry? I don't quite understand why imported CAD geometries have this issue.
@ Lyndon Wix There might be a small gap that you don't see. Have you tried zooming in a lot?
I am placing the geometries on top of each other based on their z-coordinates. For example if Layer 1 is at z=0cm and is 10 cm thick, I will place Layer 2 at z=10cm. I am fairly new to this program, does this method eliminate the possible of gaps?
Is your geometry sweepable? if so, you can reproduce it easily from your AutoCAD imported design in the COMSOL. In this way, you will avoid any gaps. Another way is to play with the tolerance settings of the COMSOL.
I am not sure how to check if my geometry is sweepable. How can I check this?
When you mesh, check if the mesh is contentious across the domains. Can you upload the file? @ Lyndon Wix
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