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Old   October 19, 2009, 06:10
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Rich
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Hi,

Please help here. I attached a pic of the model. The problem is in the triangular phases. I created face mesh, projected it in the first volume and it worked well. But the problem is when I want to mesh the mid-volume. Apparently there's a problem with the end face where the mesh is projected to. This particular face is face 575 in my model, the error reads as follows: Face face.575 of volume 113 is not appropriate for use as a face to project along. Either it is not submapped or the choice of source faces is incorrect.
In one of the quad volumes, this is separate from the error above, created I got a message saying that the mesh was created. At the end of the mesh message line. There's a message that says the volume contains inverted elements(negative volume).

In this exercise I was trying to refine the previous mesh I used. I don't know if there's a way I could have used to refine the mesh to avoid the situation that I'm in now.

Could you please advise?
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File Type: zip Face Projection Error.zip (30.1 KB, 5 views)
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Old   October 19, 2009, 07:03
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Svetlin Philipov
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In the triangular region it is difficult to mesh with quad elements and all the sides to have different meshing.... try to correct the number of nodes at each edge to be consistent....
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Old   October 19, 2009, 08:51
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I checked the number of nodes and elements between the source and projection face. The problem is the mid-volume mesh, it's 3 volumes in a row. The first one is the heat source, mid-section is fluid, and the third is heat sink. Generating mesh in the fluid section gives errors that are associated with the face on the heat sink.
When I meshed this volume for the first analysis it was fine. Now that I've refined the mesh I encounter these problems.
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