My geometry consists of parts of the human heart that were obtained from MRT scans (atria, ventricles as well as right and left blood cavities filling the interior of the heart) and represented as 3D volume geometry in ACIS ".sat" format. I am almost getting crazy by trying to form a UNION of my complex geometry in COMSOL 4.2.
If I need to form a union, why do I get the outlined error messages and what can I do to fix the problem (I am almost 100% sure that my geometry is correct and that the domain interfaces are error free) I am dealing with a coupled fluid structure problem (using "acsl" toolbox), is it 100% necessary to form a union or will an assembly do the trick as well?Ģ. Now, however, I obtain another error message: "Internal error in geometry processing internal error code: 900".ġ.
Hence, I played with the import tolerances. In a different thread I read that this might be due to the repair tolerance. However, once i try to form a union between all four domains I obtain the following error message: "Boolean operation failed". I can import each domain separately (and form a union for each domain individually). The interfaces between the domains, however, are very complex and irregular. The model consists of four domains that, once united, have a cylindrical shape. Also, I do have access to the CAD import tool. I am trying to import a complex 3D geometry into COMSOL 4.0a.
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