"Nodes" Listing error

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Harsha
Posts: 3
Joined: Mon Jul 17, 2017 7:08 am

"Nodes" Listing error

Post by Harsha »

Dear Sir,

When I made volume meshing, for node identification ,when I select a single node (after Utilities->list ->Nodes),it's displaying "473 nodes added".
That is, it's selecting additional 472 nodes. When I listed down them,except for node I had selected, remaining nodal coordinates are displayed as "NaN".Please help me resolving this.

Thanking You.
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escolano
Posts: 1918
Joined: Sun Sep 05, 1982 10:51 pm

Re: "Nodes" Listing error

Post by escolano »

Attach a zip with the model.
How has been crated?
Harsha
Posts: 3
Joined: Mon Jul 17, 2017 7:08 am

Re: "Nodes" Listing error

Post by Harsha »

Dear Sir,
Model with relevant error images are attached herein.Please go through them.

Thanking you.
Attachments
Nodes Listing Error (ZIP).zip
Model with error image
(908.01 KiB) Downloaded 312 times
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escolano
Posts: 1918
Joined: Sun Sep 05, 1982 10:51 pm

Re: "Nodes" Listing error

Post by escolano »

As I explained by e-mail the model is corrupted because of a degeneracy of the geometry on the revolution axis, specially after collapse very close points.
The best approach is to not use a structured mesh in the volumes touching the revolution axis, because of this degeneracy.
In your case is possible to use a semi-structured mesh to be able to have hexahedra also in these volumes (the rest of volume rings could be fully structured)
semi-structured and structured hexahedra.png
semi-structured and structured hexahedra.png (203.48 KiB) Viewed 4815 times
Harsha
Posts: 3
Joined: Mon Jul 17, 2017 7:08 am

Re: "Nodes" Listing error

Post by Harsha »

Dear Sir,
Your response was very helpful. Thanks a lot.
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