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COMSOL elog |
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Message ID: 125
Entry time: Mon Jan 22 21:13:25 2018
Reply to this: 126
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Author: |
aaron |
Type: |
Mechanics |
Category: |
PonderSqueeze |
Subject: |
tips from Shoaib |
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I talked with Shoaib about some changes I could make to the FEA model to improve convergence and reduce memory usage. Summary:
- use a hex mesh rather than tetrahedral
- Use more structured meshes. In particular, I can make an angled swept the mesh in the tapered portions rather than using a free mesh in these regions, defining the mesh only on one boundary
- Use a nonconformal mesh, so adjacent domains do not need to have matching meshes. This could allow transitions to coarser meshes as the fiber becomes thicker or contacts the horn
- try using curved elements so the curvature isn't just approximated by the number of regular mesh elements
- Might try scaling the model uniformly by some factor (100, 1000), which could avoid machine precision issues
I'll get these implemented this week and see if the computation goes through. |