Error 33270: A triangle edge is too short or EPSENT is too large.

Altair Forum User

I see the following error:

Error 33270: A triangle edge is too short or EPSENT is too large.

What does it mean and what should I do to fix it?

JIF

EPSENT is the maximum identical distance in FEKO - it is a distance value used to decide whether two vertices in the mesh fall together or not. The default value is 1e-6 metres, but the value is adjusted according to the model unit. For example, when working in mm, EPSENT will be 1e-9 metres.

 

The error refers to a problem in the mesh. Often the fault originates in the geometry, for example, an extremely narrow face meshed into triangles will cause this error.

The best solution is to look up the triangle number in the OUT file and then use the find tool in POSTFEKO to see where in the model this is occurring. Ideally the geometry should be fixed to avoid meshing into these small elements.

 

Alternatively the user could also try the meshing tools in CADFEKO (after unlinking the mesh), such as merge coincident vertices, to fix the mesh.