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March 18, 2010 3:22pm UTC

geom. modeling of Network of Blood Vessel in tutorial

Hi,

I am reading the tutorial of the Network of Blood Vessel which is in the structural-fluid interaction section of the hard copy of the Model Library (I am not sure the details of geometry modeling exist in the PDF or html copies). It is under Bioengineering chapter.

In this modeling after the creation of the blood, vessel and muscle domains, we need to copy and paste twice the muscle domain (step 13 of creation of the Surrounding Muscle). Then we should find the intersection of blood and vessel domain each with one of these pasted muscles domains. In the end we will end up with 3 composite objects. I just cannot understand how within the muscle domain the hollow space which is the passage of the vessel and blood, is created. This question arose because after finding the above intersections in which two out of three muscle domains are used and the original muscle should remain intact; i.e. a solid box. So how is this vessel passage created inside it without changing anything? But I am not sure whether the extrusion takes place over the vessel automatically creates those hollow spaces for the extruded domain.

Your help is appreciated.
Thanks,
Manuel

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