[cfdbooks]

I am developing a cut-cell cartesian grid generator(something like NASA' Cart3d). Because grid vertices are defined in each cell locally(one vertex may has different index in different cells), it is difficult to postprocess the grid. Does any one know how Cart3d solves this probelm? Thanks in advance.

[kyle]

That's just a polyhedral grid. Paraview supports them, and is much more powerful than anything you would be able to develop in a reasonable amount of time.

[sbaffini]

Do you have any reference on a proper way to export polyhedral grids to paraview? Both native or non-native format would be ok (still my experience with non native ones says that it is not exactly stable).

Still, i think this does not exactly fit the original question

[cfdbooks]

Originally Posted by kyle

That's just a polyhedral grid. Paraview supports them, and is much more powerful than anything you would be able to develop in a reasonable amount of time.

In fact, I can export the grid to Ensight as nfaced cells. But when I make a cut plane on it, I get the points cloud on the cut plane, not the real cut plane. Because neighboring cells have no common vertex(share the same index), Ensight does not think they are connected.(see my topic posted on Ensight forum)