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-   -   [ICEM] STL file meshing (http://www.cfd-online.com/Forums/ansys-meshing/96155-stl-file-meshing.html)

ld1305 January 13, 2012 18:53

STL file meshing
 
Hi, I'm kind of new to ICEM as the meshing I've done before has been for 2D pipes in which case I used Gambit, or for FEA in which case I used Ansys Workbench.

I have an STL file which I have to generate a mesh for for part of my project but am not sure where to get started. The tutorials and other things I've read appear to be suggesting I use tetra method or octane but I have no idea how to make the stl file I have mesh as it appears to have a lot of gaps in it.

Is there anything I'm missing?

I've tried repairing the mesh but this doesn't seem to ass many more edges

Thanks very much :)

dizzy January 16, 2012 04:47

Hi,

Have your read this?
http://www.cfd-online.com/Forums/ans...face-icem.html

ld1305 January 16, 2012 05:19

Yeah I had, though most of the steps appear not to work for my file, in particular the repairing surface geometry and the diagnostic topology. It seems to have quite a few gaps in it that don't like this method.

I'll try it again later though, but at the moment I'mmore stuck on how to set inlets and outlets so I'll try that too.

Thanks

PSYMN January 17, 2012 18:42

If you can, please post a screen shot of your trouble spots...

Perhaps it will help us understand or perhaps we can tell you that your STL is just too terrible :eek:

ld1305 January 17, 2012 18:57

It's likely that it is, though I was given it by a lecturer for me to carry out some testing, I'll try and get a screen shot tomorrow

ld1305 January 26, 2012 11:21

Hi, sorry this so long, but this is what I've been given with no alteration

http://www.flickr.com/photos/7523180...n/photostream/

Essentially I want to create a plane along each of the blue lines at inlets and outlets to make these edges flat so they can be used as better inlets and outlets?

I know how to generate the mesh when this is done, just having a few issues witht his aspect

cdegroot January 26, 2012 15:17

Looking forward to a response to this thread; I am experiencing a very similar trouble!

ld1305 January 26, 2012 18:24

I think I've combatted part of the problem, by creating a local coordinate system (as my outlets were all at odd angles) and using this to create four points in a square around the inlets and outlets with points, then making a surface using them, and using the surface intersection tool to create a surface around where the new inlet/outlet will be


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