topic Simplifying geometry for CFD analysis in Inventor Forum

Simplifying geometry for CFD analysis

matheuswolff — Thu, 09 Nov 2023 19:47:37 GMT

Hey there. I've got a particular internal geometry to simplify, in order to analyze its flow. We've accepted compromises in fidelity, and one of the parts is made of 2 components. I've already joined them, but there is a small interface pocket/chamfer/fillet throughout the interface, and I'm struggling to find a solution to fill it adequately. Pictures below for reference, as I cannot share the geometry right now.
PS: I'm already using the Simplify command but it can't seem to get this gap right.
Thanks to anyone who takes a look at it!

Re: Simplifying geometry for CFD analysis

Gabriel_Watson — Thu, 09 Nov 2023 20:13:53 GMT

If you joined both components into one part/IPT, you can use 3D Model (tab) > Simplification (panel) > Remove Details. Choose "All faces selectable" and then select all internal faces to remove. Similarly, the "Delete Face" command under 3D Model > Modify could do this, if you pick the option to "Heal Remaining Faces".
Another option might be to go into the repair environment to unstitch the whole solid and use a boundary patch to close the gap.

Re: Simplifying geometry for CFD analysis

matheuswolff — Thu, 09 Nov 2023 21:28:32 GMT

Thank you for the reply. Both give generic errors on application. I'll try the painstaking method of selecting all internal faces tomorrow, but if both the first and second solutions giving errors is an indicator of something please let me know.

Matt

Re: Simplifying geometry for CFD analysis

johnsonshiue — Thu, 09 Nov 2023 23:54:34 GMT

Hi! The geometry may not be modeled precisely. Or the simplification process leads to modeling errors. Please share the file here. The forum experts and I can help take a further look.

Many thanks!

Re: Simplifying geometry for CFD analysis

matheuswolff — Fri, 10 Nov 2023 16:00:36 GMT

Hi John, I've cut the geometry to a few key sections in order to discharacterize it, but it has all the complicated features I'm having trouble with. Here it is.

Re: Simplifying geometry for CFD analysis

matheuswolff — Fri, 10 Nov 2023 16:42:40 GMT

Quick update: I've managed to do a fluid domain on this simplified geometry. I guess i'll patiently do it by hand and it'll all be fine. Thanks everyone!

Re: Simplifying geometry for CFD analysis

Anonymous — Fri, 10 Nov 2023 19:30:55 GMT

Hi Matheus, I've been working on it, until I noticed you called it off in your last post Well, I did manage to produce an insert piece, see attached mp4 and cad files (IV2023 and STEP). Cheers, Marco

Edit: pinned sketch v2 versionInsert piece