Rochester Institute of Technology is an ANSYS sponsored team using Forte to predict engine emissions. RIT obtained the solid geometry from the engine manufacturer as a SOLIDWORKS (SW) file. I volunteered to help with geometry preparation to extract the fluid domain and partition the surfaces to make it ready for import into Forte. Eric Oswald is a fifth year Mechanical Engineering student who is doing the Forte simulations. Both DesignModeler (DM) and SpaceClaim (SC) can do the Fill operation to create a solid model of the fluid domain, but an important difference was revealed. DesignModeler and SOLIDWORKS both use the Parasolid geometry modeling kernel, while SpaceClaim uses the ACIS kernel. That means moving data from SW to DM is just a write and read operation, while moving data from SW to SC is a write, read and translate operation.
Course in FEM – ANSYS Workbench/CAD 3D Modeling. 3D Modeling 2 Computational Mechanics, AAU, Esbjerg. •Select File> Import> SAT. The ANSYS Connection for SAT dialog box appears, as shown below. Imported into ANSYS via either the ANSYS GUI or the ~HEAL. Mar 29, 2017 - New York, NY (March 29, 2017) – Fewer than five months after announcing its acquisition of Aviation American Gin, Davos Brands,.
Most of the time, this translation between the two kernels has no effect, but sometimes it causes a problem. Below is the image of the inlet port as seen in DM and it looks the same in SW.
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Here is the image of the inlet port as seen in SC. Note the spike defect just right of center. In this case, I decided to use DesignModer to complete the geometry preparation! Peter and Vishal I appreciate the example - translation is to be avoided if possible.
However, I like to think that there is always a way to repair geometry, and strictly following the Repair tools is not always going to be the way to go. In this case, when you have geometry that is apparently 'all bad' like this, your only recourse is to delete the offending faces and get them in there somehow, again. You can recreate them, but in this case we got lucky because the intent of the part appears to be symmetry; and the other tube of the manifold looks good. I made a temporary plane through the axis of what seemed like the center hole between the inlets (outlets?) and copy-pasted the good surface and mirrored it about the plane. They looked like a perfect match, to me. Then delete the bad face (there was just one) to turn the whole model to surfaces, as you can see above.
The first try didn't choose the right side of these little nubbin surfaces (or perhaps I forgot to select them, see how they appear to float inside, unconnected to anything): But a simple undo (to before the deletion,) copy-paste both nubbins (6 total faces,) do the delete again, and select the 4 surfaces to Merge in Combine, and you are done: Back to solid part.
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