Posted by kth on
URL: http://forum.featool.com/Importing-gmsh-mesh-file-with-several-subdomains-tp315p355.html

Hi, thanks for the update and sharp replies. New questions that just arrived with 1.12.2 ;

Skipping the workaround with gmsh, i created two simple case in order to address my error:

First case (un-joined_overlapping_external) two geometries that overlap each other, and without merging them (copy/subtract). They are perfectly decomposed into subdomains during meshing, also Equation gives option to define objects individually, also Boundary can be set without any interior boundaries.
This is exactly what i try to do with a second case (un-joined_overlapping_internal), where the one geometry is completely overlapping the other, as discussed above with the New_Toy_Coil.step. I dont understand how, but i mess it up and the same error keep coming: Only the outer domain is meshed, (in the Equation are available to define but Boundary of the inner geometry have become interior which is not allowing eventually to have a heat flux from the inner domain. (such as a circuit that produced heat losses based on a load profile/ heat-source and the outer domain represents the convection air (free and forced convection) - It is similar to the heat exchanger tutorial example (https://www.featool.com/doc/multiphysics_00_heat_exchanger1) but for 3D.

How can we have the same behavior of case 1, for a complete interior geometry as in case 2?

un-joined_overlapping_external.fea
un-joined_overlapping_internal.fea