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July 29, 2010, 08:07 |
Problem with interfaces
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#1 |
New Member
Join Date: Jul 2010
Posts: 4
Rep Power: 15 |
Hello I'm from Germany,
I try to simulate a round filter cartridge. I created 3 bodies: 1 body: inner fluid region 2 body: filter (porous reagion) 3 body: external fluid reagion (see attached file) Then I created the interfaces (In-Place). When I try to mesh, I get this error-message: "Could not match up perimeters of bounderies interface fi and interface i" Can someone help me? Thanks |
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July 29, 2010, 15:43 |
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#2 |
Member
Vinicius Girardi
Join Date: Mar 2009
Location: Sao Paulo, Brazil
Posts: 80
Rep Power: 17 |
How did you defined the regions? did you split by surface topology or create the interfaces manually? Try to create them again..
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July 29, 2010, 15:49 |
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#3 |
New Member
Join Date: Jul 2010
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I created 3 bodies in catia an imported them in 3 regions...
how can i split by surface topology? |
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July 29, 2010, 16:02 |
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#4 |
Member
Vinicius Girardi
Join Date: Mar 2009
Location: Sao Paulo, Brazil
Posts: 80
Rep Power: 17 |
You must have to create a single region where the edges that shares the "external fluid/filter/inner fluid" faces must be marked as a non-manifold edges... so the software will understand that they are 3 different regions and split them creating the interfaces automatically..
Note that the faces that are common in 2 regions, are in fact just one face, that will be automatically duplicated in the interface creation |
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July 30, 2010, 04:05 |
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#5 |
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Hm... I'm still not understand. Sorry.
Where schould I create one reagion with non-manifold edges? In Catia or CCM+? |
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August 19, 2010, 04:14 |
hi friend plz check this
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#6 |
Member
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you told that you had created inplace interface in which u should specify contact option
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August 24, 2010, 05:33 |
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#7 |
New Member
Join Date: Jul 2010
Posts: 4
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Thanks for help. I solved the problem. I converted the surface to interface and then combined them with the different reagions, and it works.
But now i have a problem with an other model. I simulated a model without any filters, only fluid reagion. I get a total pressure difference between inlet and outlet about 3500pa with 600 iteration steps. Now I modifited my model and put the filters in. But in first step i wanted to simulate this model without any porous options. So I defined the filter reagions as fluid with interfaces. I simulated this model on a 64bit 8core an 16GB ram machine and I get in 40000 !!! iteration steps only 1300Pa pressure difference. Is that normal? Pete |
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