After importing the partial model, it is recommended to check the geometry of the integrated mesh (Mesh Checks ...). If errors in the mesh occur, this is usually due to the fact that one of the steps described above has not been carried out correctly.

The most common source of error results from the fact that two nodes do not coincide exactly at the inner boundary. Especially for large models, it may happen that a boundary node of the refined mesh was not removed during the manual correction. This node then lies on the model boundary of one mesh, but has no counterpart in the other. These errors are identified by the geometry checks and can then be corrected.

 

It has proven to correct the errors in the respective models, and then perform the import again. After this two intact models exist. Advantage of this method is that the detailed model can also be used for future considerations further and a new import into the overall model can be done with reduced effort. For a new simulation with the partial model is to be noted that the already deleted boundary condition of in- and outflow has to be calculated and assigned again.

The model checking (Calculation Model checking...) gives possibly indications of inconsistencies in the model data which are not identifiable in the pure geometry checks. If there are no relevant data errors detected, the actual model calculation can be performed.

 

Comparison of the calculated results