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Automatic Remeshing for Moving Meshes
Posted 28 juin 2011, 11:05 UTC−4 Mesh Version 4.2 4 Replies
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"For a simulation that includes a moving mesh, a new automatic remeshing feature makes more extreme deformation states possible. When the mesh is deformed beyond a user-defined mesh quality threshold, the automatic remeshing activates, and the simulation is automatically continued, starting from the new mesh."
However, I am working with a fluid-structure interaction model, and I can't seem to get this feature to work nor find any mention of it in the documentation or help files. Has anybody tried this out?
Thanks,
John
Hello John
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Nor does there exist any example model connected with it.
The release note seems to correspond to a future release ??
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Well, I found the auto-remeshing option in the version 4.2 (it can be activated in Time Dependent study step -> Settings -> Extension). Adaptive remeshing function is also there.
But I can not get it work for moving mesh interfaces:
- in dg (deformed geometry) interface, after the condition for remeshing is reached, solver stops with the error "duplicate variable names xXm, yXm, xYm, yYm".
- in ale (moving mesh) interface other errors connected to generation of new mesh come out, e.g. "intersecting edge elements", "could not reach minimal mesh quality" etc.
The example suggested from the COMSOL team is the copper deposition model in electrodeposition module, but in the electrodeposition module you do not need dg or ale, because moving mesh is built-in in this module and it works well.
Has anyone managed to get it work properly with dg or ale?
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I am also looking for some help with the feature.
Well, I found the auto-remeshing option in the version 4.2 (it can be activated in Time Dependent study step -> Settings -> Extension). Adaptive remeshing function is also there.
But I can not get it work for moving mesh interfaces:
- in dg (deformed geometry) interface, after the condition for remeshing is reached, solver stops with the error "duplicate variable names xXm, yXm, xYm, yYm".
- in ale (moving mesh) interface other errors connected to generation of new mesh come out, e.g. "intersecting edge elements", "could not reach minimal mesh quality" etc.
The example suggested from the COMSOL team is the copper deposition model in electrodeposition module, but in the electrodeposition module you do not need dg or ale, because moving mesh is built-in in this module and it works well.
Has anyone managed to get it work properly with dg or ale?
I get the same errors, namely- "intersecting edge elements". Has anybody found solution to this problem ?