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Boundary Error in meshing
Posted Jul 3, 2025, 5:41 p.m. EDT General, User Interface Version 6.3 2 Replies
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I am modeling a laser cathode stem that uses a heater coil for joule heating.
My issue is that the bottom portion of my coil has 0 spacing between them, the windings are directly on top of each other. When I am meshing in COMSOL the boundaries are giving the error of "intersecting face elements." I have this on "extremely fine" free tetrahedral. I tried ignoring edges and some boundaries but it just seemed to cause more issues that I don't know how to fix.
This is my first COMSOL simulation so apologies if things are a bit unclear. Couldn't seem to reduce file size down even after removing meshing. Added the stp file to show geometry, though.
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Niels,
you need to avoid those intersections by introducing a small gap between the windings. In reality you wouldn't make a coil that has contact between the windings, would you?
Cheers Edgar
-------------------Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
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Hi Edgar,
The real version does have contact between the windings actually. I guess for a more realistic model I should make them intersect a bit instead of just a line contact.
Thank you