Overlapping line segments

Netgen
1

Hello everyone!

How does the 2D mesh generation handle overlapping line segments?
Say there is a relative movement of two solid domains in air. Do I need to define 3 line segments (domain1 neighbouring air, domain 1 neighbouring domain 2, domain 2 neighbouring air) and update the geometry (and thus, the mesh) in each simulation step, or is there some neater solution I do not yet know of?

Thank you,
KLK

2

Without overlaps you can use deformations and or mesh optimizations. If there are topological changes you need to update the geomtry.

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