Reply To: The problem of how to complete an electromagnetic simulation

[Ushnish Basu]

What are the distances between conductor faces and do they respect the general best practice rule that the distance between BEM faces should not exceed the surface mesh size? From the pictures it does not appear to be the case. Remedies to this when a lack of convergence is observed is to either improve the mesh (usually via refinement), reduce the time step, tighten the tolerances of the BEM matrices assembly etc. etc., usually a combination of all those factors. In other words, improve the model (also, the mesh seems uniform everywhere so probably an overkill in regions where little might happen).

 

Please also see the youtube viedo series on EM forming (search for "ls dyna em forming tutorial")