Obtaining the Surface Mesh from the Connectivity File

[Arsh Kumbhat]

Hello everyone!

I was trying to use the connectivity file for the NASA CRM model to obtain the surface mesh. As far as I understand, the connectivity file only provides a mapping between each node and its neighbors and no information of the cell type is provided. Without this cell information, it is difficult to compute macroscopic quantities such as the drag and lift coefficient from surrogate AI models and compare them to the ground truth values. It would be great if someone can provide more insight on how I could successfully extract the surface mesh from the connectivity file.

Thank you so much!

[Colton Beardsley]

Arsh,

The connectivity file defines the connectivity of cells, but the actual solution files (training and testing data) contain the coordinates of each cell which could be used to construct the mesh and also contains surface areas and normal vectors which could be used to calculate integrated force coefficients. This is because some of the control surface deflections change so some of these surface mesh values are run dependent.

Hope this helps. 

Colton Beardsley,

Corvid Technologies

[Arsh Kumbhat]

Thank you so much for your reply. This was really helpful.