{"id":28143,"date":"2017-08-22T20:38:41","date_gmt":"2017-08-22T20:38:41","guid":{"rendered":"\/forum\/forums\/topic\/problems-with-connections-contacts-while-meshing-in-ansys\/"},"modified":"2017-08-22T20:38:41","modified_gmt":"2017-08-22T20:38:41","slug":"problems-with-connections-contacts-while-meshing-in-ansys","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problems-with-connections-contacts-while-meshing-in-ansys\/","title":{"rendered":"Problems with connections\/contacts while meshing in Ansys:"},"content":{"rendered":"

I am modeling a helical pipe encased in a solid medium (backfill). The medium is surrounded by soil. The pipe has water inside. <\/span><\/p>\n

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I created a hollow pipe and then imported it to Ansys (SpaceClaim). I then created a cylinder surrounding this pipe and used the merge command to get a cylindrical backfill around this pipe and water (body inside the helical pipe). The backfill is surrounded by cylindrical region of soil.<\/span><\/p>\n

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When I import the model for meshing, multiple contacts are automatically generated. Most of these have unequal number of target to contact faces e.g. Contact 2 has 6 contact faces and 8 target faces. In addition they form overlapping contacts that need to be repaired. <\/span><\/p>\n

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I wanted to avoid these so I decreased the tolerance value of the auto detection in details of contact. I then get lesser contacts but some still need to repair and suppress some.<\/span><\/p>\n

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Once I repair them and import the Mesh to Fluent I get this error message:<\/span><\/p>\n

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Warning: zone of type interior found between different solids!<\/span><\/p>\n

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Material of cell zone 7 is bckfill, while material of cell zone 8 is hdpe.<\/span><\/p>\n

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Warning: zone of type interior found between different solids!<\/span><\/p>\n

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Material of cell zone 7 is bckfill, while material of cell zone 6 is soil.<\/span><\/p>\n

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This will adversely affect the solution.<\/span><\/p>\n

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It is recommended that you fix this issue via the TUI command<\/span><\/p>\n

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