After importing the submodel, it makes sense to subject the integrated mesh to a geometry check (Mesh Checks...). If mesh errors occur, this is usually due to the fact that one of the steps described above was not carried out correctly.

The most frequent source of error results from the fact that two nodes on the inner edge do not coincide exactly and are therefore not recognised as one node in the integrated mesh. Especially with large models, it is also possible that an boundary node of the refined mesh was not removed during manual correction. This node is then located on the model boundary of one mesh, but has no equivalent in the other. These locations are recognised by the geometry checks and can then be corrected.

It has proven useful to correct the errors that have occurred in the respective meshes and then perform the import again. This results in two intact output meshes. The advantage of this method is that the detailed sub-mesh can also be used for later analyses and a new import into the overall mesh is possible with less effort. For a new simulation with the partial model, it should be noted that the already deleted rate boundary condition must be redetermined and reassigned.

The preliminary model check (Calculation Model checking…) may indicate inconsistencies in the model data that are not recognisable during the pure geometry check. If no relevant data errors are recognised here, the actual model calculation can be carried out.

Comparison of the calculated results