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-   -   Surface mesh from polygon model of motorcycle (http://www.cfd-online.com/Forums/main/90869-surface-mesh-polygon-model-motorcycle.html)

Simonomis July 22, 2011 10:58

Surface mesh from polygon model of motorcycle
 
1 Attachment(s)
Hi all,

I could really do with some help here, I am working on a masters dissertation to study windflow over a motorcycle and rider. I am particularly interested in a particular adventure motorcycle (BMW F800gs). I could not find a detailed model of this motorcycle online so I bought a very detailed 1:10 scale model with the intention of scanning it. We have a faro laser scanning arm at my uni and I have got some very good scans of the various parts.

My problem is that the parts start as point cloud data which are then converted to a polygon mesh (about 500000 faces) and I have been relatively unsuccessful at geting surfaces (nurbs or parametric) from the polygon information.

My question is - is there a way to create a CFD surface mesh directly from the polygon mesh? possibly using ICEM?

Example of polygon mesh:

Attachment 8526

Thanks in advance :confused:

rwryne July 22, 2011 11:17

What file format is the current mesh in?

Simonomis July 23, 2011 02:50

Quote:

Originally Posted by rwryne (Post 317121)
What file format is the current mesh in?

Hi rwryne - the polygon mesh can be exported in a few formats from geomagic or rapidform (two reverse engineering packages I am using) but I am using .stl

I will post a screen shot of the export file types of both packages

Thanks

rwryne July 27, 2011 15:27

Quote:

Originally Posted by Simonomis (Post 317175)
Hi rwryne - the polygon mesh can be exported in a few formats from geomagic or rapidform (two reverse engineering packages I am using) but I am using .stl

I will post a screen shot of the export file types of both packages

Thanks


If the file format is STL, you should be able to import it into ICEM directly and then mesh it. It may be difficult depending on how the geometry is when imported.


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