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November 23, 2014, 14:28 |
Meshing A Complex Terrain with ICEM
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#1 |
Senior Member
david
Join Date: Oct 2012
Posts: 142
Rep Power: 14 |
Hi CFD enthusiasts, experts and beginners,
This problem has been causing me to lose sleep for the past 2 weeks and I hope you guys can help me solve it. By the way, a glorious Sunday to all of you! Project: I am working on the wind flow over a complex terrain. I have the X Y Z coordinates. Methodology so far: -I imported the X Y Z coordinates into Matlab, created a triangular irregular network using the delaunay function and exported the surface as an STL file. surfmat.png -I then imported it to AutoCAD to do some trimming of parts I did not want, etc. This is what it looks like. autocadsurf.jpg - I then imported part of the geometry into ICEM and it gave me the following distressing view. surficem001.jpg As you can see, there are holes everywhere. Building topology will not help at all. - I then imported the STL file into ICEM and built topology but again nothing worked as it resulted in lots of holes on the surface. Can anybody offer any help/advice? Thanks David |
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November 24, 2014, 20:58 |
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#2 |
Senior Member
david
Join Date: Oct 2012
Posts: 142
Rep Power: 14 |
Anybody out there?
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December 1, 2014, 08:52 |
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#3 |
Member
Miro
Join Date: Jan 2013
Location: Europe
Posts: 51
Rep Power: 13 |
You could try Netgen: it's capable of creating a healthy surface mesh/checking if the one you have is healthy.
Also, Autocad can export in other formats that gambit can handle, so maybe you should try those (like ACIS, but there may be a better option). - miro edit: ups, now I see you were asking for ICEM, not Gambit, but I it should be the same. Last edited by miro2000; December 1, 2014 at 08:57. Reason: a word |
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December 4, 2014, 05:22 |
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#5 |
New Member
Join Date: Feb 2014
Posts: 11
Rep Power: 12 |
Reducing the triangulation tolerance at Settings -> Model/Units might also make the graphics look better. Just add a zero after the dot to the number used.
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December 9, 2014, 09:46 |
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#6 |
Member
Alexander
Join Date: Nov 2009
Location: Blansko, Czech Republic
Posts: 30
Rep Power: 17 |
Hello. If you still need to create the surface from point I can try to help you. Could you sent the point for me. And I need to know the error of this point. )
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