Meshing for this part failed overall

[vex]

I'm in the process of learning Algor and I am attempting to run a CFD simulation of a manifold of my own design. I am able to import the assembly and even able to generate internal fluid volume using the mesh>fluid generation>Internal. However when I attempt to mesh the volume using the tetrahedral with boundary layer I receive the following error:

--- Get one active element part from fem file
Problem in getting part 12 meshing ID:
Meshing for this part failed overall

--- 5 enabled L&C groups are defined
In openning FEM file
Terminal Error: FEM2ESH#103, item#0
FEM2ESH_ERROR_SEARCHING_MESHER_ID, remesh the part
2010/05/08-15:27:51

From what I can tell the error is because the end profiles of the runners do not allow the boundary layers to be calculated correctly. Instead of being a series of nodes radiating from the center out they are only connecting various nodes of the circumference.

So my question is: How would I remedy this error? I've included a snap shot of what I am assuming is the problem.

[PipePakPat]

vex,

It is true that several nodes are required to define flow through a passage, and your model will need to be meshed differently to allow flow. Access the "MESH|Model Mesh Settings" pull-down menu sequence and choose the "Options" button. Click on the "SOLID" icon in the left margin and choose "Tetrahedra and Wedges (boundary layer)" meshing option and choose "OK". Next, select the surface at the end of the passage, then right-click and choose "CAD MESH OPTIONS|Exclude From Boundary Layer". One can then mesh the model.

In regard to the meshing error produced below. If the error message appears again, access the "FILE|ARCHIVE|Create" pull-down menu sequence and choose to create an archive of the model only. Upload the resulting *.ach file for review.

Pat Tessaro, P.E.
Autodesk Inc.

[vex]

Thank you for the reply Pat,

I've found a "workaround" by creating the manifold itself from a single part file (instead of an assembly). Doing so seems to cure the issue of "Meshing for this part failed overall."

I will be glade to create an archive of the model issues, but I believe I was misguided in my thinking that the end surface mesh of the runners was the cause of the error. In looking between the different mesh models of the assembly and the single part file; it appears that the isentropic nozzles did not mesh appropriately in the assembly creating extremely thin edges where the nozzles are mated to the plenum.

I will upload the *.ach file later tonight.

Thanks again!

[vex]

I created the archive file, but it's too large to post apparently.