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ptc-49313361-Visitor
1-Visitor
April 16, 2013
Question

Parasolid File Problems

  • April 16, 2013
  • 1 reply
  • 2261 views

In Creo, we create a lot of very large files (can be 1km is size) but they also have tiny features (in the order of a few millimetres). These are for export to use in Star CCM+ CFD software.

The "best" filetype to use is Parsolid, however when importing to CFD, the assemblies can be quite faceted (think 50 pence) around the rounded ends (the overall shape may be a running track). There isn't a setting with Parasolid export for "fineness" - but is there an upgrade to the export set-up/command?

The problem is when there are layers of parts stacked up, the facets don't match.

However, interestingly, if the same Parasolid file is imported into ANSYS/FLUENT, then exported as another Parasolid file, then imported into Star CCM+, this work-around method works ... the facets line up nicely!

This isn't efficient - hence looking for a better Creo Parasolid export


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1 reply

T
TomD.inPDX17-Peridot
17-Peridot
April 16, 2013

Ken, you might have the conversation with Star CCM+ to see if they can see what the problem is. If they can identify the issue, maybe PTC or Star CCM+ can update their conversion tool.

Since the export from PTC is good into ANSYS/FLUENT, I would suggest the Star CCM+ import tool is out of date. Not that PTC shouldn't offer to help in making your job easier.

This sounds like a great opportunity to get things cleaned up on one end or the other.

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