Quantcast
Channel: Latest Discussions - COMSOL Forums
Viewing all articles
Browse latest Browse all 25631

3D geometry problems

$
0
0
Hello everyone,

I am trying to solve an electric field problem using a 3D geometry comprised of five subdomains. The difference between the biggest domain (a cube with the edge of 40 micrometers) and the smallest one (a cylinder with the height of 10 nanometers and the radius of 1 nanometer) is of 4 orders of magnitude.

The geometry is generated just fine. The problem occurs when I try to generate the mesh: I get the Error 4100 message (Failed to generate mesh).

Sometimes, after editing my geometry, but keeping the same 4 orders of magnitude difference between the biggest and the smallest subdomains, I get the Error 2035 message (Edges are too close in 2D domain) when accessing the Subdomain or Boundary Conditions (before trying to generate the mesh).

I'm aware that the problem is due to the great size differences between the computational domains. Could this problem be solved somehow? Did anyone encountered this and managed to override it?


Viewing all articles
Browse latest Browse all 25631

Trending Articles