Q. I am attempting to generate a tet mesh in ICEM CFD 5.1.
I can mesh the volume fairly coarsely at about 200000 elemets, but when I try to generate a more refined mesh of around 500000 elements using 'natural size' and 'refinement' settings I get a message that 'faces are
missoriented' and several thousand messages along the lines of 'face at 1 2 3 has one volume neighbour and no shell element'. The volume mesh is created ok but when loaded into CFX-PRE there is a surface element set created 'inside' the volume (I guess this is all the misoriented faces) which means the Pre-Processing cannot be set up correctly.
A. I would recommend that after creating the tet mesh, smooth it and then run Mesh ==> Check Mesh.
This will highlight any problems in ICEM before export. If there are problems, you can either try to fix or change the geometry and/or mesh settings. Alternatively, with more experience, you could try to fix the problem manually by creating a subset when prompted (this will allow you to locate the problem). The edit mesh tools can then be used to fix it.
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Q. I am attempting to generate a tet mesh in ICEM CFD 5.1. I can mesh the volume fairly coarsely at about 200000 elemets, but when I try to generate a more refined mesh of around 500000 elements using 'natural size' and 'refinement' settings I get a message that 'faces are missoriented' and several thousand messages along the lines of 'face at 1 2 3 has one volume neighbour and no shell element'. The volume mesh is created ok but when loaded into CFX-PRE there is a surface element set created 'inside' the volume (I guess this is all the misoriented faces) which means the Pre-Processing cannot be set up correctly. A. I would recommend that after creating the tet mesh, smooth it and then run Mesh ==> Check Mesh. This will highlight any problems in ICEM before export. If there are problems, you can either try to fix or change the geometry and/or mesh settings. Alternatively, with more experience, you could try to fix the problem manually by creating a subset when prompted (this will allow you to locate the problem). The edit mesh tools can then be used to fix it. |
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