Posted Mon, 20 Aug 2007 15:23:03 GMT by Sherko Sharif
I have a case (2D) where the model is very long (around 4000m) and the height is around 30m only. As a result I applied a vertical exaggeration 1:20 to be able to see the model in a resonable way. I created the super mesh (snap to the nodes at the border lines of my model). The mesh was created with triangles of approximately equal sides in the vertically exaggerated model which means that the actual proportions for the mesh triangles are not really acceptable to FEM.
1- What are the effects of having the long triangles on the simulation results?
2- How to create sutable mesh in such a case?
Posted Sat, 01 Sep 2007 13:39:55 GMT by Boris Lyssenko
The way exaggeration is treated depends on the mesh generator. I think T-Mesh reacts in the way you mention - producing bad-shaped triangles. I would recommend in any case to generate the mesh without vertical exaggeration and turn on the exaggeration after this step.
Posted Fri, 28 Sep 2007 15:30:04 GMT by Denim Umeshkumar Anajwala

Wow ... that sounds like a bug to me!! The exaggeration should be a purely visual thing, completely independent of the underlying mesh data!!!

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