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NPOIN error on 3D mesh

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Old   June 24, 2019, 17:06
Default NPOIN error on 3D mesh
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Hi all! I tried to make a mesh recently and SU2 is giving me an NPOIN error. The file has the correct number of points, and I have tried creating physical surfaced and volumes to include all of the points. In GMSH, I have also tried save all elements with no success. Attached is my mesh. Thanks for the help!

https://drive.google.com/file/d/1FfM...ew?usp=sharing
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Old   June 25, 2019, 04:58
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Akshay Koodly
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Hi,


Your file says NELEM = 0 and there are no elements defined. I can see the correct number of points and markers, but no elements. Can you check with gmsh again?


Cheers.
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Old   June 25, 2019, 12:01
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Thank you, I will try to regenerate the mesh!
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Old   July 12, 2019, 12:49
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Hey,

if you have a gmsh .geo file to share I could help much better.

Did you really create a Physical Volume? I am kind of certain that you didn't, from what I see (I uncommented the physical volume part in of my meshes and I get the exact same behavior). GMSH only exports what is inphysical groups by default.
Code:
Physical Volume("<name>") = {<Volume ID list seperated by commas>};
See http://gmsh.info/doc/texinfo/gmsh.html#Volumes

You'll need a Surface Loop -> Volume -> Physical Volume. I recommend to use the GUI for that as it usually easier.

You could use the
Code:
Save all (ignore physical)
option during export although I don't recommend doing so as it will write geometry points as well (e.g. a helper midpoint to create a circular arc)... and then you'll have a point which does not belong to an element which will cause another error.


Hope that helps,
Tobi
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