Struggling with Meshing on a Complex Geometry

Using SimScale CAD & Meshing
1

Hi everyone,

I’m working on a simulation for a new heat sink design and am running into meshing issues. The geometry is fairly complex with many small fins, and the mesh keeps failing near the edges.

Here is a link to my project: [Paste the URL of your project here]

Steps I’ve taken:
I’ve tried refining the mesh on the fins and adjusting the curvature refinement, but I’m still getting errors.

Specific question:
Does anyone have advice on what mesh settings work best for high-aspect-ratio features like fins? Any help would be greatly appreciated.

Thanks!

3

Hi @pwolf3848,

Would it be possible for you to send me the link to the project? also please make sure that the project is shared with support, so that I can take a deeper look at the problem.

Thanks!
Bryan

4

Hi @pwolf3848,

Just following up on this thread in case the meshing issue is still unresolved.

For dense heat-sink fins, one thing I would check is the minimum edge length / small-feature handling. If the mesher is trying to resolve very small sliver edges around the fin tips, increasing the minimum edge length slightly can sometimes be more robust than adding further local refinement.

I would also suggest using the heat sink meshing tutorial as a baseline and keeping the refinement setup as simple as possible at first.

If you are still having issues, please share the project URL and make sure the project is shared with Support, so we can inspect the failing faces and mesh settings in more detail.

Thanks,
Bryan