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Converting a scanned surface to a mesh

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Old   February 11, 2013, 09:37
Default Converting a scanned surface to a mesh
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Ken Mankoff
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Hi,

I have a scanned surface as seen in the image below. I'd like to use this in OpenFOAM. I'd like examine how fluid flows over this surface, so I think the easiest way might be to have this become the roof of a pipe segment, with the walls and floor as simple straight boundaries that are no stick.

I collected the data as a point cloud with a scanner and then meshed it using 3rd party software. I have the CAELinux Virtual Machine so I can pass it through Engrid or gmsh or some other tools. I am seeking advice about which tool or workflow would be the best to modify the surface to become part of a pipe.

Thanks,

-k.


Last edited by mankoff; February 11, 2013 at 12:41.
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Old   February 24, 2013, 16:59
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Bruno Santos
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wyldckat is just really nicewyldckat is just really nicewyldckat is just really nicewyldckat is just really nice
Hi Ken,

If you use Google:
Code:
import terrain openfoam
you'll find a few threads on this topic

I'm not 100% certain, but I believe this thread might be the best on this topic: SnappyHexMeshing SnakeRiverCanyon tutorial

By the way, the advantage of using snappyHexMesh is that you do not need to create a tube, you can use a box and made directly with blockMesh.
In addition, you might want to look into the following add-ons for Blender:

Best regards,
Bruno

PS: for other readers, enGrid's related question has been answered here: enGrid right tool for surface mesh -> cylinder?
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Old   March 4, 2013, 12:18
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Ken Mankoff
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Hi Bruno,

Thank you for your reply. Sorry for my delay, I was on vacation last week. I'll let the other EnGrid thread die out and continue here, since I am not using EnGrid.

I figured out to just use blockMesh and snappyHexMesh as you suggested, although I ended up figuring this out by using discretizer and the video tutorials on that website.

Regards,

Ken Mankoff
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