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Creating a vascular system with multiple branches
Posted Jun 14, 2012, 9:45 p.m. EDT Fluid & Heat, Geometry, Structural Mechanics Version 4.0a 1 Reply
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Hi, I'm using Comsol 4.0a and trying to design a vessel with multiple branches and have designed the geometry well. With one branch, Comsol creates the domains as intended (flow continuous inside both main and branch vessels, while walls are also continuous with each other). But when trying to add other branches, the domains begin to overlap, having some of the walls considered as fluid and vice versa. I'm really not sure how to deal with it, I've rechecked the geometry over and over again, and it looks sound. Any help would be appreciated. Thanks.
1 Reply Last Post Jun 15, 2012, 12:57 a.m. EDT
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Posted:
1 decade ago
Hi
overlapping domains are not necessarily bad, except when the overlaps are small and they generate a lot of small mesh elements of no importance to the model, but wich ues RAM and solver time for nothing.
Then you must start to use the boolean operations available to combine/ union with or without internal boundaries, with or without keeping the original elements.
--
Good luck
Ivar
overlapping domains are not necessarily bad, except when the overlaps are small and they generate a lot of small mesh elements of no importance to the model, but wich ues RAM and solver time for nothing.
Then you must start to use the boolean operations available to combine/ union with or without internal boundaries, with or without keeping the original elements.
--
Good luck
Ivar