[marcel_jay]

Hello and Happy new year,

I am trying to do a CHT-simulation through a complex model and there seems to be a problem with the pre-engine handling it.
I used a coarse mesh to do some testings so it "only" has a about 3M elements, in an accurate mesh it would be about 14M - I will try to use symmetry in meshing later on, but I'm not sure if that makes the setup more complicated (periodical interface on different domains).

So the model consists of 28 solid domains and 1 fluid. There are about 85 connections, most of them very important for the heat transfer.
When I start pre, nothing would happen - it will show 0% in the lower right corner for at least half an hour.

The computer I'm using has a Xeon E5-2687W with 128 GB Ram in it.

It am not sure, but it probably would take way too long to create domains and interfaces manually, especially as I think it's too much effort to do all the proper named selections.

So does anyone encountered an issue like this before?
I'd be thankful for some advice.

Cheers
Marcel