Problem with hexa mesh refinement
 

Hi everybody,

I'm creating a mesh into an S-duct (first image) using hexa elements and O-grid blocking (second image).
My problem comes when I refine the premesh and try to convert it into Unstruct Mesh. Under a grade of refinement I always get the error shown in the third image and the mesh is not generated. I don't know why does it appear because all the pre-mesh quality histograms are ok.

I appreciate any suggestion.

Thanks

Attachment 6865

Attachment 6866

Attachment 6867

It looks like an i/o error (nothing to do with the mesh its self).

Do you have write permission in the folder you are working?

Have you saved your project? Check that it is where you think it is...

Thank you very much Simon, I have changed the directory which was in a network to a local machine one and now it works.

Thank you.